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No sound after video card replaced (AMD Radeon HD 7770)

- by Sean

Issue: no sound System: Dual boot Windows 7 (sda) Ubuntu 12.04 (sdb) 2 harddrives Dell XPS 730 Video card: AMD Radeo HD 7770 Diamond Multimedia Sound card: Creative Labs SB X-Fi Additional info: My sound used to work. Then, my old video card (NVIDIA geforce 280) died. I bought and installed a new video card: Radeon HD 7770. After this, my sound no longer worked in ubuntu (Win7 audio still works). Everything else in ubuntu, such as video, works fine. I suspect it has something to do with the fact that the Radeon card includes sound capability. Problem Details: If I click on System Settings - Sound, the panel freezes and stops responding indefinitely. The sound volume icon at the top of the screen (by the clock) shows 3 dashes beside it "---", and an empty drop-down box shows if I click on it. (Possibly related to 1.) When I reboot my machine, I get the message: "gnome settings daemon not responding". I have to force the reboot. I reinstalled ubunbu (perserving my home directory) and the problem persists. Diagnostics info: Following procedure outlined here: https://help.ubuntu.com/community/SoundTroubleshooting The following is a list of terminal commands, and their output: $ aplay -l List of PLAYBACK Hardware Devices There is no listing beyond that, and the command freezes until I hit control-c $ lspci -v | grep -A7 -i "audio" 00:0f.1 Audio device: NVIDIA Corporation MCP55 High Definition Audio (rev a2) Subsystem: Dell Device 0224 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23 Memory at dfff0000 (32-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel -- 01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Device aab0 Subsystem: Diamond Multimedia Systems Device aab0 Flags: bus master, fast devsel, latency 0, IRQ 43 Memory at dfefc000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel -- 03:0a.0 Audio device: Creative Labs SB X-Fi Subsystem: Creative Labs Device 6002 Flags: bus master, medium devsel, latency 32, IRQ 18 Memory at dbff4000 (32-bit, non-prefetchable) [size=16K] Memory at dbc00000 (64-bit, non-prefetchable) [size=2M] Memory at d4000000 (64-bit, non-prefetchable) [size=64M] I/O ports at 8c00 [size=32] Capabilities: <access denied> Notice the Diamond Multimedia Systems Device - that seems to be my video card sound. My video card is Diamond multimedia. Also there's the weird NVIDIA device in there. That must either be a remnant of my now removed NVIDIA graphics card, or else some kind of on-board thing. Not sure which. $ killall pulseaudio This allows me to open system settings - sound. But the "Test Sound" button makes no sound And the output volume + mute controls are greyed / disabled at 0 volume. It also allows me to click on the sound control in the "task bar" (beside the clock), and a volume slider drops down, but it is disabled / greyed at 0 volume. $ find /lib/modules/uname -r | grep snd /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-88pm860x.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-tlv320aic3x.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8900.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8978.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-tlv320dac33.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm9090.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-sta32x.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-max98088.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-max9850.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-rt5631.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8903.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8580.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8523.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-max9877.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ads117x.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8955.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8804.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-sgtl5000.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8750.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm2000.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-tlv320aic32x4.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ak4642.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ad193x.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8753.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ak4535.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8985.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8350.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-dfbmcs320.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-cs42l51.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-tlv320aic26.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8737.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-uda1380.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8776.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8995.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-tpa6130a2.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8727.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm5100.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8991.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8510.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-jz4740-codec.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8400.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-lm4857.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8960.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-alc5623.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-cs4270.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-tlv320aic23.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8993.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8961.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8940.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-uda134x.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ad1836.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8994.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8782.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-cs4271.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8974.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8983.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8962.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ak4641.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm-hubs.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8971.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8996.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wl1273.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-adav80x.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-spdif.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-pcm3008.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-cx20442.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ak4671.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8711.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ad73311.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-max98095.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm9081.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8741.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm1250-ev1.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8988.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-adau1373.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8731.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-l3.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ssm2602.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-da7210.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-ak4104.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8904.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8728.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8770.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/codecs/snd-soc-wm8990.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/soc/snd-soc-core.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/synth/emux/snd-emux-synth.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/synth/snd-util-mem.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd-hrtimer.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd-hwdep.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd-pcm.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd-rawmidi.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/oss/snd-mixer-oss.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd-page-alloc.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq-midi.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq-dummy.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq-virmidi.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq-device.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq-midi-event.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/seq/snd-seq-midi-emul.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/core/snd-timer.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pcmcia/pdaudiocf/snd-pdaudiocf.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pcmcia/vx/snd-vxpocket.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/6fire/snd-usb-6fire.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/snd-usbmidi-lib.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/caiaq/snd-usb-caiaq.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/usx2y/snd-usb-usx2y.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/usx2y/snd-usb-us122l.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/snd-usb-audio.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/usb/misc/snd-ua101.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/opl3/snd-opl3-synth.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/opl3/snd-opl3-lib.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/opl4/snd-opl4-lib.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/opl4/snd-opl4-synth.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-portman2x4.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-serial-u16550.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-mts64.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-mtpav.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/mpu401/snd-mpu401.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/mpu401/snd-mpu401-uart.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/vx/snd-vx-lib.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-dummy.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-aloop.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/pcsp/snd-pcsp.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/drivers/snd-virmidi.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/firewire/snd-firewire-lib.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/firewire/snd-firewire-speakers.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/firewire/snd-isight.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/snd-tea6330t.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/other/snd-tea575x-tuner.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/other/snd-ak4113.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/other/snd-pt2258.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/other/snd-ak4117.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/other/snd-ak4xxx-adda.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/other/snd-ak4114.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/snd-cs8427.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/i2c/snd-i2c.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/emu10k1/snd-emu10k1-synth.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/emu10k1/snd-emu10k1.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/emu10k1/snd-emu10k1x.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/korg1212/snd-korg1212.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/au88x0/snd-au8830.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/au88x0/snd-au8820.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/au88x0/snd-au8810.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/aw2/snd-aw2.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-sis7019.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-ens1371.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/vx222/snd-vx222.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-via82xx.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-es1968.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-atiixp-modem.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-cs4281.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-sonicvibes.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-intel8x0.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-maestro3.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/ac97/snd-ac97-codec.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-es1938.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-fm801.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/nm256/snd-nm256.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-codec-realtek.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-codec-cmedia.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-codec-conexant.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-intel.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-codec-analog.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-codec-hdmi.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-codec-idt.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-codec-ca0110.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-codec-cirrus.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-codec-via.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-codec-ca0132.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-codec-si3054.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/hda/snd-hda-codec.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/riptide/snd-riptide.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-ens1370.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-als4000.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-intel8x0m.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/ca0106/snd-ca0106.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-cs5530.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/cs5535audio/snd-cs5535audio.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-rme32.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/ymfpci/snd-ymfpci.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/ctxfi/snd-ctxfi.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-azt3328.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/cs46xx/snd-cs46xx.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/lx6464es/snd-lx6464es.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/ice1712/snd-ice1712.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/ice1712/snd-ice17xx-ak4xxx.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/ice1712/snd-ice1724.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/mixart/snd-mixart.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/ali5451/snd-ali5451.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/lola/snd-lola.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/oxygen/snd-oxygen-lib.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/oxygen/snd-oxygen.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/oxygen/snd-virtuoso.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/snd-via82xx-modem.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/pcxhr/snd-pcxhr.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/echoaudio/snd-indigo.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/echoaudio/snd-echo3g.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/echoaudio/snd-mona.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/echoaudio/snd-layla20.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/echoaudio/snd-gina20.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/echoaudio/snd-layla24.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/echoaudio/snd-mia.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/echoaudio/snd-indigoiox.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/echoaudio/snd-darla24.ko /lib/modules/3.2.0-29-generic-pae/kernel/sound/pci/echoaudio/snd-indigoio.ko 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/lib/modules/3.2.0-29-generic-pae/kernel/sound/isa/snd-opl3sa2.ko

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No Sound card detected in Sound Settings, although sound works

- by usertwelve

I have Ubuntu 12.04 installed on my laptop. When I go to Sound Settings while logged into my user, no sound card appears detected. In spite of this, the sound on my laptop is working ok, and I can use alsamixer just fine. The Unity sound indicator is dead, and this is quite annoying. If I login as guest, the sound indicator works just fine, I assume it's something related to my user's sound settings, but I cannot find what exactly. Any clues?

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Sound Problem due to wrong driver installation

- by Starx

First of all, the audio used to play from the speaker but whenever I connected a headphone or speaker in the I, the sound didn't came. So I installed a realtek sound driver to fix this (actually I didn't find any relevant driver for my sound card so I installed it hoping it would show some light) When I rebooted the system, my sound is completely gone and now ubuntu does not detect any sound devices in my system. I clearly installed wrong driver, now I need to remove and go to previous stage and find a correct driver. My laptop is: Dell Studio 1747, uses a speaker Creative Labs Sound X-Fi MB Sound Blaster and the chipset is INTEL PM55. How can I fix this?

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How to detect Creative Sound blaster Audigy 2?

- by Chris

I have installed a pci 7.1 sound card Creative Sound Blaster Audigy 2, on my 10.10 Ubuntu 64 bit installation. I have disabled the on board sound card from bios. I boot and the system cannot recognize my "new" sound card. When I execute aplay -l I get this responce: aplay: device_list:235: no soundcards found... I take a guess and I think it is probably something wrong with my sound modules.

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Ubuntu 12.04, Can hear the sound but Sound option in settings shows no sound card

- by Vivek Srivastava

I have weired issue. I did a fresh installation of Ubuntu 12.04. Then I installed Nvidia drives for my graphics card. I executed the command "modprobe nvidia" after installing the Nvidia drivers and rebooted. After reboot, sound indicator in top panel is disabled and I can't control the volume from there. I opened Settings Sound and it does not show any sound card installed. However, I can hear the sound. Please help. Output of lspci | grep Audio 00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 01) 01:00.1 Audio device: NVIDIA Corporation GF110 High Definition Audio Controller (rev a1) Output of lsmod | grep snd snd_hda_codec_hdmi 32191 4 snd_hda_codec_realtek 73851 1 snd_hda_intel 33367 0 snd_hda_codec 134156 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel snd_hwdep 13668 1 snd_hda_codec snd_pcm 97188 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec snd_timer 29990 1 snd_pcm snd 78855 7 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer soundcore 15091 1 snd snd_page_alloc 18529 2 snd_hda_intel,snd_pcm

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How to fix sound in wolfenstein Enemy Territory

- by GrizzLy

I installed wolf:et, and i cant get sound to work. Everything that i have installed is in default paths, i had 10.4 and then upgraded to 10.10 via software update gui. I had sound working in 10.04 with method under 2. I have tried following killall esd; et; esd with that i get ------- sound initialization ------- /dev/adsp: No such file or directory Could not open /dev/adsp ------------------------------------ sudo -i echo "et.x86 0 0 direct" /proc/asound/card0/pcm0p/oss echo "et.x86 0 0 disable" /proc/asound/card0/pcm0c/oss exit with that i get bash: /proc/asound/card0/pcm0p/oss: No such file or directory and indeed i do not have that, i have only sub0 and sub1 in pcm0p I have tried running et with et-sdl-sound script, but with that i get this output in console http://pastebin.com/J7gRU1uh I have probably messed up sdl libraries, could not get sound to work, so downloaded new from debian package site and installed them. Tried setting SDL_AUDIODRIVER="pulse" in et-sdl-sound, looks like i am getting same error as in method 3. pasuspender -- et +set s_alsa_pcm plughw:0 gives me ------- sound initialization ------- /dev/adsp: No such file or directory Could not open /dev/adsp _------------------------------------ Misc: @Oli: i do not know if i am running pulse or esd, how can i check that?

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graphics-card makes sound-card produce a buzzing sound

- by Markus von Broady

Recently I bought a new GPU: GeForce GTX 550 Ti, and after installing it I get a strange buzzing sound. It's not always there, just sometimes (mostly when I open some game, but sometimes also in browsers etc.). It's not a capacitor or a fan, as unplugging speakers from sound-card makes the 'bzzzzzzz' go away. However, muting windows doesn't mute this sound. I'm pretty sure it is fault of the new GPU, but how is this happening and can I fix it? Can it be a low power supply? I thought of buying a stronger unit, but as everything works, and computer doesn't shut down, I hesitate.

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Sound driver for motherboard gigabyte ga-g1975x-c (Creative Sound Blaster Live 24-bit) (alsa, ca0106)

- by Mikl

My motherboard is gigabyte ga-g1975x-c with integrated audio "Creative Sound Blaster Live 24-bit". I have installed Ubuntu 10.10, and there was no sound at all. Alsa drivers was already installed. Finally after long searching, i have found how to make my sound work. /etc/modprobe.d/alsa-base.conf: options snd-ca0106 subsystem=0x10121102 //i have added this line and restart After restarting my speakers and microfon works fine. Maybe somebody knows different/better subsystem code for my sound card???

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"Waiting for Sound System to respond." error dialog

- by Paulo Truta

Hello guys. I'm having a nasty problem with the Sound Menu on my Ubuntu 10.10 Installation. What happens is that the sound control icon is blocked, and i can't control the master volume. If i try to get to the Sound Preferences i get a little Pop-Up Window saying: "Waiting for Sound System to respond...". Don't know what to do... Apart of that, sound works great. Thanks a lot ;) PS: I made 2 screenshot uploads. Hope it helps.

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Introduction to the ASP.NET Web API

- by Stephen.Walther

I am a huge fan of Ajax. If you want to create a great experience for the users of your website – regardless of whether you are building an ASP.NET MVC or an ASP.NET Web Forms site — then you need to use Ajax. Otherwise, you are just being cruel to your customers. We use Ajax extensively in several of the ASP.NET applications that my company, Superexpert.com, builds. We expose data from the server as JSON and use jQuery to retrieve and update that data from the browser. One challenge, when building an ASP.NET website, is deciding on which technology to use to expose JSON data from the server. For example, how do you expose a list of products from the server as JSON so you can retrieve the list of products with jQuery? You have a number of options (too many options) including ASMX Web services, WCF Web Services, ASHX Generic Handlers, WCF Data Services, and MVC controller actions. Fortunately, the world has just been simplified. With the release of ASP.NET 4 Beta, Microsoft has introduced a new technology for exposing JSON from the server named the ASP.NET Web API. You can use the ASP.NET Web API with both ASP.NET MVC and ASP.NET Web Forms applications. The goal of this blog post is to provide you with a brief overview of the features of the new ASP.NET Web API. You learn how to use the ASP.NET Web API to retrieve, insert, update, and delete database records with jQuery. We also discuss how you can perform form validation when using the Web API and use OData when using the Web API. Creating an ASP.NET Web API Controller The ASP.NET Web API exposes JSON data through a new type of controller called an API controller. You can add an API controller to an existing ASP.NET MVC 4 project through the standard Add Controller dialog box. Right-click your Controllers folder and select Add, Controller. In the dialog box, name your controller MovieController and select the Empty API controller template: A brand new API controller looks like this: using System; using System.Collections.Generic; using System.Linq; using System.Net.Http; using System.Web.Http; namespace MyWebAPIApp.Controllers { public class MovieController : ApiController { } } An API controller, unlike a standard MVC controller, derives from the base ApiController class instead of the base Controller class. Using jQuery to Retrieve, Insert, Update, and Delete Data Let’s create an Ajaxified Movie Database application. We’ll retrieve, insert, update, and delete movies using jQuery with the MovieController which we just created. Our Movie model class looks like this: namespace MyWebAPIApp.Models { public class Movie { public int Id { get; set; } public string Title { get; set; } public string Director { get; set; } } } Our application will consist of a single HTML page named Movies.html. We’ll place all of our jQuery code in the Movies.html page. Getting a Single Record with the ASP.NET Web API To support retrieving a single movie from the server, we need to add a Get method to our API controller: using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Net.Http; using System.Web.Http; using MyWebAPIApp.Models; namespace MyWebAPIApp.Controllers { public class MovieController : ApiController { public Movie GetMovie(int id) { // Return movie by id if (id == 1) { return new Movie { Id = 1, Title = "Star Wars", Director = "Lucas" }; } // Otherwise, movie was not found throw new HttpResponseException(HttpStatusCode.NotFound); } } } In the code above, the GetMovie() method accepts the Id of a movie. If the Id has the value 1 then the method returns the movie Star Wars. Otherwise, the method throws an exception and returns 404 Not Found HTTP status code. After building your project, you can invoke the MovieController.GetMovie() method by entering the following URL in your web browser address bar: http://localhost:[port]/api/movie/1 (You’ll need to enter the correct randomly generated port). In the URL api/movie/1, the first “api” segment indicates that this is a Web API route. The “movie” segment indicates that the MovieController should be invoked. You do not specify the name of the action. Instead, the HTTP method used to make the request – GET, POST, PUT, DELETE — is used to identify the action to invoke. The ASP.NET Web API uses different routing conventions than normal ASP.NET MVC controllers. When you make an HTTP GET request then any API controller method with a name that starts with “GET” is invoked. So, we could have called our API controller action GetPopcorn() instead of GetMovie() and it would still be invoked by the URL api/movie/1. The default route for the Web API is defined in the Global.asax file and it looks like this: routes.MapHttpRoute( name: "DefaultApi", routeTemplate: "api/{controller}/{id}", defaults: new { id = RouteParameter.Optional } ); We can invoke our GetMovie() controller action with the jQuery code in the following HTML page: <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Get Movie</title> </head> <body> <div> Title: <span id="title"></span> </div> <div> Director: <span id="director"></span> </div> <script type="text/javascript" src="Scripts/jquery-1.6.2.min.js"></script> <script type="text/javascript"> getMovie(1, function (movie) { $("#title").html(movie.Title); $("#director").html(movie.Director); }); function getMovie(id, callback) { $.ajax({ url: "/api/Movie", data: { id: id }, type: "GET", contentType: "application/json;charset=utf-8", statusCode: { 200: function (movie) { callback(movie); }, 404: function () { alert("Not Found!"); } } }); } </script> </body> </html> In the code above, the jQuery $.ajax() method is used to invoke the GetMovie() method. Notice that the Ajax call handles two HTTP response codes. When the GetMove() method successfully returns a movie, the method returns a 200 status code. In that case, the details of the movie are displayed in the HTML page. Otherwise, if the movie is not found, the GetMovie() method returns a 404 status code. In that case, the page simply displays an alert box indicating that the movie was not found (hopefully, you would implement something more graceful in an actual application). You can use your browser’s Developer Tools to see what is going on in the background when you open the HTML page (hit F12 in the most recent version of most browsers). For example, you can use the Network tab in Google Chrome to see the Ajax request which invokes the GetMovie() method: Getting a Set of Records with the ASP.NET Web API Let’s modify our Movie API controller so that it returns a collection of movies. The following Movie controller has a new ListMovies() method which returns a (hard-coded) collection of movies: using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Net.Http; using System.Web.Http; using MyWebAPIApp.Models; namespace MyWebAPIApp.Controllers { public class MovieController : ApiController { public IEnumerable<Movie> ListMovies() { return new List<Movie> { new Movie {Id=1, Title="Star Wars", Director="Lucas"}, new Movie {Id=1, Title="King Kong", Director="Jackson"}, new Movie {Id=1, Title="Memento", Director="Nolan"} }; } } } Because we named our action ListMovies(), the default Web API route will never match it. Therefore, we need to add the following custom route to our Global.asax file (at the top of the RegisterRoutes() method): routes.MapHttpRoute( name: "ActionApi", routeTemplate: "api/{controller}/{action}/{id}", defaults: new { id = RouteParameter.Optional } ); This route enables us to invoke the ListMovies() method with the URL /api/movie/listmovies. Now that we have exposed our collection of movies from the server, we can retrieve and display the list of movies using jQuery in our HTML page: <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>List Movies</title> </head> <body> <div id="movies"></div> <script type="text/javascript" src="Scripts/jquery-1.6.2.min.js"></script> <script type="text/javascript"> listMovies(function (movies) { var strMovies=""; $.each(movies, function (index, movie) { strMovies += "<div>" + movie.Title + "</div>"; }); $("#movies").html(strMovies); }); function listMovies(callback) { $.ajax({ url: "/api/Movie/ListMovies", data: {}, type: "GET", contentType: "application/json;charset=utf-8", }).then(function(movies){ callback(movies); }); } </script> </body> </html> Inserting a Record with the ASP.NET Web API Now let’s modify our Movie API controller so it supports creating new records: public HttpResponseMessage<Movie> PostMovie(Movie movieToCreate) { // Add movieToCreate to the database and update primary key movieToCreate.Id = 23; // Build a response that contains the location of the new movie var response = new HttpResponseMessage<Movie>(movieToCreate, HttpStatusCode.Created); var relativePath = "/api/movie/" + movieToCreate.Id; response.Headers.Location = new Uri(Request.RequestUri, relativePath); return response; } The PostMovie() method in the code above accepts a movieToCreate parameter. We don’t actually store the new movie anywhere. In real life, you will want to call a service method to store the new movie in a database. When you create a new resource, such as a new movie, you should return the location of the new resource. In the code above, the URL where the new movie can be retrieved is assigned to the Location header returned in the PostMovie() response. Because the name of our method starts with “Post”, we don’t need to create a custom route. The PostMovie() method can be invoked with the URL /Movie/PostMovie – just as long as the method is invoked within the context of a HTTP POST request. The following HTML page invokes the PostMovie() method. <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Create Movie</title> </head> <body> <script type="text/javascript" src="Scripts/jquery-1.6.2.min.js"></script> <script type="text/javascript"> var movieToCreate = { title: "The Hobbit", director: "Jackson" }; createMovie(movieToCreate, function (newMovie) { alert("New movie created with an Id of " + newMovie.Id); }); function createMovie(movieToCreate, callback) { $.ajax({ url: "/api/Movie", data: JSON.stringify( movieToCreate ), type: "POST", contentType: "application/json;charset=utf-8", statusCode: { 201: function (newMovie) { callback(newMovie); } } }); } </script> </body> </html> This page creates a new movie (the Hobbit) by calling the createMovie() method. The page simply displays the Id of the new movie: The HTTP Post operation is performed with the following call to the jQuery $.ajax() method: $.ajax({ url: "/api/Movie", data: JSON.stringify( movieToCreate ), type: "POST", contentType: "application/json;charset=utf-8", statusCode: { 201: function (newMovie) { callback(newMovie); } } }); Notice that the type of Ajax request is a POST request. This is required to match the PostMovie() method. Notice, furthermore, that the new movie is converted into JSON using JSON.stringify(). The JSON.stringify() method takes a JavaScript object and converts it into a JSON string. Finally, notice that success is represented with a 201 status code. The HttpStatusCode.Created value returned from the PostMovie() method returns a 201 status code. Updating a Record with the ASP.NET Web API Here’s how we can modify the Movie API controller to support updating an existing record. In this case, we need to create a PUT method to handle an HTTP PUT request: public void PutMovie(Movie movieToUpdate) { if (movieToUpdate.Id == 1) { // Update the movie in the database return; } // If you can't find the movie to update throw new HttpResponseException(HttpStatusCode.NotFound); } Unlike our PostMovie() method, the PutMovie() method does not return a result. The action either updates the database or, if the movie cannot be found, returns an HTTP Status code of 404. The following HTML page illustrates how you can invoke the PutMovie() method: <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Put Movie</title> </head> <body> <script type="text/javascript" src="Scripts/jquery-1.6.2.min.js"></script> <script type="text/javascript"> var movieToUpdate = { id: 1, title: "The Hobbit", director: "Jackson" }; updateMovie(movieToUpdate, function () { alert("Movie updated!"); }); function updateMovie(movieToUpdate, callback) { $.ajax({ url: "/api/Movie", data: JSON.stringify(movieToUpdate), type: "PUT", contentType: "application/json;charset=utf-8", statusCode: { 200: function () { callback(); }, 404: function () { alert("Movie not found!"); } } }); } </script> </body> </html> Deleting a Record with the ASP.NET Web API Here’s the code for deleting a movie: public HttpResponseMessage DeleteMovie(int id) { // Delete the movie from the database // Return status code return new HttpResponseMessage(HttpStatusCode.NoContent); } This method simply deletes the movie (well, not really, but pretend that it does) and returns a No Content status code (204). The following page illustrates how you can invoke the DeleteMovie() action: <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Delete Movie</title> </head> <body> <script type="text/javascript" src="Scripts/jquery-1.6.2.min.js"></script> <script type="text/javascript"> deleteMovie(1, function () { alert("Movie deleted!"); }); function deleteMovie(id, callback) { $.ajax({ url: "/api/Movie", data: JSON.stringify({id:id}), type: "DELETE", contentType: "application/json;charset=utf-8", statusCode: { 204: function () { callback(); } } }); } </script> </body> </html> Performing Validation How do you perform form validation when using the ASP.NET Web API? Because validation in ASP.NET MVC is driven by the Default Model Binder, and because the Web API uses the Default Model Binder, you get validation for free. Let’s modify our Movie class so it includes some of the standard validation attributes: using System.ComponentModel.DataAnnotations; namespace MyWebAPIApp.Models { public class Movie { public int Id { get; set; } [Required(ErrorMessage="Title is required!")] [StringLength(5, ErrorMessage="Title cannot be more than 5 characters!")] public string Title { get; set; } [Required(ErrorMessage="Director is required!")] public string Director { get; set; } } } In the code above, the Required validation attribute is used to make both the Title and Director properties required. The StringLength attribute is used to require the length of the movie title to be no more than 5 characters. Now let’s modify our PostMovie() action to validate a movie before adding the movie to the database: public HttpResponseMessage PostMovie(Movie movieToCreate) { // Validate movie if (!ModelState.IsValid) { var errors = new JsonArray(); foreach (var prop in ModelState.Values) { if (prop.Errors.Any()) { errors.Add(prop.Errors.First().ErrorMessage); } } return new HttpResponseMessage<JsonValue>(errors, HttpStatusCode.BadRequest); } // Add movieToCreate to the database and update primary key movieToCreate.Id = 23; // Build a response that contains the location of the new movie var response = new HttpResponseMessage<Movie>(movieToCreate, HttpStatusCode.Created); var relativePath = "/api/movie/" + movieToCreate.Id; response.Headers.Location = new Uri(Request.RequestUri, relativePath); return response; } If ModelState.IsValid has the value false then the errors in model state are copied to a new JSON array. Each property – such as the Title and Director property — can have multiple errors. In the code above, only the first error message is copied over. The JSON array is returned with a Bad Request status code (400 status code). The following HTML page illustrates how you can invoke our modified PostMovie() action and display any error messages: <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Create Movie</title> </head> <body> <script type="text/javascript" src="Scripts/jquery-1.6.2.min.js"></script> <script type="text/javascript"> var movieToCreate = { title: "The Hobbit", director: "" }; createMovie(movieToCreate, function (newMovie) { alert("New movie created with an Id of " + newMovie.Id); }, function (errors) { var strErrors = ""; $.each(errors, function(index, err) { strErrors += "*" + err + "\n"; }); alert(strErrors); } ); function createMovie(movieToCreate, success, fail) { $.ajax({ url: "/api/Movie", data: JSON.stringify(movieToCreate), type: "POST", contentType: "application/json;charset=utf-8", statusCode: { 201: function (newMovie) { success(newMovie); }, 400: function (xhr) { var errors = JSON.parse(xhr.responseText); fail(errors); } } }); } </script> </body> </html> The createMovie() function performs an Ajax request and handles either a 201 or a 400 status code from the response. If a 201 status code is returned then there were no validation errors and the new movie was created. If, on the other hand, a 400 status code is returned then there was a validation error. The validation errors are retrieved from the XmlHttpRequest responseText property. The error messages are displayed in an alert: (Please don’t use JavaScript alert dialogs to display validation errors, I just did it this way out of pure laziness) This validation code in our PostMovie() method is pretty generic. There is nothing specific about this code to the PostMovie() method. In the following video, Jon Galloway demonstrates how to create a global Validation filter which can be used with any API controller action: http://www.asp.net/web-api/overview/web-api-routing-and-actions/video-custom-validation His validation filter looks like this: using System.Json; using System.Linq; using System.Net; using System.Net.Http; using System.Web.Http.Controllers; using System.Web.Http.Filters; namespace MyWebAPIApp.Filters { public class ValidationActionFilter:ActionFilterAttribute { public override void OnActionExecuting(HttpActionContext actionContext) { var modelState = actionContext.ModelState; if (!modelState.IsValid) { dynamic errors = new JsonObject(); foreach (var key in modelState.Keys) { var state = modelState[key]; if (state.Errors.Any()) { errors[key] = state.Errors.First().ErrorMessage; } } actionContext.Response = new HttpResponseMessage<JsonValue>(errors, HttpStatusCode.BadRequest); } } } } And you can register the validation filter in the Application_Start() method in the Global.asax file like this: GlobalConfiguration.Configuration.Filters.Add(new ValidationActionFilter()); After you register the Validation filter, validation error messages are returned from any API controller action method automatically when validation fails. You don’t need to add any special logic to any of your API controller actions to take advantage of the filter. Querying using OData The OData protocol is an open protocol created by Microsoft which enables you to perform queries over the web. The official website for OData is located here: http://odata.org For example, here are some of the query options which you can use with OData: · $orderby – Enables you to retrieve results in a certain order. · $top – Enables you to retrieve a certain number of results. · $skip – Enables you to skip over a certain number of results (use with $top for paging). · $filter – Enables you to filter the results returned. The ASP.NET Web API supports a subset of the OData protocol. You can use all of the query options listed above when interacting with an API controller. The only requirement is that the API controller action returns its data as IQueryable. For example, the following Movie controller has an action named GetMovies() which returns an IQueryable of movies: public IQueryable<Movie> GetMovies() { return new List<Movie> { new Movie {Id=1, Title="Star Wars", Director="Lucas"}, new Movie {Id=2, Title="King Kong", Director="Jackson"}, new Movie {Id=3, Title="Willow", Director="Lucas"}, new Movie {Id=4, Title="Shrek", Director="Smith"}, new Movie {Id=5, Title="Memento", Director="Nolan"} }.AsQueryable(); } If you enter the following URL in your browser: /api/movie?$top=2&$orderby=Title Then you will limit the movies returned to the top 2 in order of the movie Title. You will get the following results: By using the $top option in combination with the $skip option, you can enable client-side paging. For example, you can use $top and $skip to page through thousands of products, 10 products at a time. The $filter query option is very powerful. You can use this option to filter the results from a query. Here are some examples: Return every movie directed by Lucas: /api/movie?$filter=Director eq ‘Lucas’ Return every movie which has a title which starts with ‘S’: /api/movie?$filter=startswith(Title,’S') Return every movie which has an Id greater than 2: /api/movie?$filter=Id gt 2 The complete documentation for the $filter option is located here: http://www.odata.org/developers/protocols/uri-conventions#FilterSystemQueryOption Summary The goal of this blog entry was to provide you with an overview of the new ASP.NET Web API introduced with the Beta release of ASP.NET 4. In this post, I discussed how you can retrieve, insert, update, and delete data by using jQuery with the Web API. I also discussed how you can use the standard validation attributes with the Web API. You learned how to return validation error messages to the client and display the error messages using jQuery. Finally, we briefly discussed how the ASP.NET Web API supports the OData protocol. For example, you learned how to filter records returned from an API controller action by using the $filter query option. I’m excited about the new Web API. This is a feature which I expect to use with almost every ASP.NET application which I build in the future.

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Introduction to the ASP.NET Web API

- by Stephen.Walther

I am a huge fan of Ajax. If you want to create a great experience for the users of your website – regardless of whether you are building an ASP.NET MVC or an ASP.NET Web Forms site — then you need to use Ajax. Otherwise, you are just being cruel to your customers. We use Ajax extensively in several of the ASP.NET applications that my company, Superexpert.com, builds. We expose data from the server as JSON and use jQuery to retrieve and update that data from the browser. One challenge, when building an ASP.NET website, is deciding on which technology to use to expose JSON data from the server. For example, how do you expose a list of products from the server as JSON so you can retrieve the list of products with jQuery? You have a number of options (too many options) including ASMX Web services, WCF Web Services, ASHX Generic Handlers, WCF Data Services, and MVC controller actions. Fortunately, the world has just been simplified. With the release of ASP.NET 4 Beta, Microsoft has introduced a new technology for exposing JSON from the server named the ASP.NET Web API. You can use the ASP.NET Web API with both ASP.NET MVC and ASP.NET Web Forms applications. The goal of this blog post is to provide you with a brief overview of the features of the new ASP.NET Web API. You learn how to use the ASP.NET Web API to retrieve, insert, update, and delete database records with jQuery. We also discuss how you can perform form validation when using the Web API and use OData when using the Web API. Creating an ASP.NET Web API Controller The ASP.NET Web API exposes JSON data through a new type of controller called an API controller. You can add an API controller to an existing ASP.NET MVC 4 project through the standard Add Controller dialog box. Right-click your Controllers folder and select Add, Controller. In the dialog box, name your controller MovieController and select the Empty API controller template: A brand new API controller looks like this: using System; using System.Collections.Generic; using System.Linq; using System.Net.Http; using System.Web.Http; namespace MyWebAPIApp.Controllers { public class MovieController : ApiController { } } An API controller, unlike a standard MVC controller, derives from the base ApiController class instead of the base Controller class. Using jQuery to Retrieve, Insert, Update, and Delete Data Let’s create an Ajaxified Movie Database application. We’ll retrieve, insert, update, and delete movies using jQuery with the MovieController which we just created. Our Movie model class looks like this: namespace MyWebAPIApp.Models { public class Movie { public int Id { get; set; } public string Title { get; set; } public string Director { get; set; } } } Our application will consist of a single HTML page named Movies.html. We’ll place all of our jQuery code in the Movies.html page. Getting a Single Record with the ASP.NET Web API To support retrieving a single movie from the server, we need to add a Get method to our API controller: using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Net.Http; using System.Web.Http; using MyWebAPIApp.Models; namespace MyWebAPIApp.Controllers { public class MovieController : ApiController { public Movie GetMovie(int id) { // Return movie by id if (id == 1) { return new Movie { Id = 1, Title = "Star Wars", Director = "Lucas" }; } // Otherwise, movie was not found throw new HttpResponseException(HttpStatusCode.NotFound); } } } In the code above, the GetMovie() method accepts the Id of a movie. If the Id has the value 1 then the method returns the movie Star Wars. Otherwise, the method throws an exception and returns 404 Not Found HTTP status code. After building your project, you can invoke the MovieController.GetMovie() method by entering the following URL in your web browser address bar: http://localhost:[port]/api/movie/1 (You’ll need to enter the correct randomly generated port). In the URL api/movie/1, the first “api” segment indicates that this is a Web API route. The “movie” segment indicates that the MovieController should be invoked. You do not specify the name of the action. Instead, the HTTP method used to make the request – GET, POST, PUT, DELETE — is used to identify the action to invoke. The ASP.NET Web API uses different routing conventions than normal ASP.NET MVC controllers. When you make an HTTP GET request then any API controller method with a name that starts with “GET” is invoked. So, we could have called our API controller action GetPopcorn() instead of GetMovie() and it would still be invoked by the URL api/movie/1. The default route for the Web API is defined in the Global.asax file and it looks like this: routes.MapHttpRoute( name: "DefaultApi", routeTemplate: "api/{controller}/{id}", defaults: new { id = RouteParameter.Optional } ); We can invoke our GetMovie() controller action with the jQuery code in the following HTML page: <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Get Movie</title> </head> <body> <div> Title: <span id="title"></span> </div> <div> Director: <span id="director"></span> </div> <script type="text/javascript" src="Scripts/jquery-1.6.2.min.js"></script> <script type="text/javascript"> getMovie(1, function (movie) { $("#title").html(movie.Title); $("#director").html(movie.Director); }); function getMovie(id, callback) { $.ajax({ url: "/api/Movie", data: { id: id }, type: "GET", contentType: "application/json;charset=utf-8", statusCode: { 200: function (movie) { callback(movie); }, 404: function () { alert("Not Found!"); } } }); } </script> </body> </html> In the code above, the jQuery $.ajax() method is used to invoke the GetMovie() method. Notice that the Ajax call handles two HTTP response codes. When the GetMove() method successfully returns a movie, the method returns a 200 status code. In that case, the details of the movie are displayed in the HTML page. Otherwise, if the movie is not found, the GetMovie() method returns a 404 status code. In that case, the page simply displays an alert box indicating that the movie was not found (hopefully, you would implement something more graceful in an actual application). You can use your browser’s Developer Tools to see what is going on in the background when you open the HTML page (hit F12 in the most recent version of most browsers). For example, you can use the Network tab in Google Chrome to see the Ajax request which invokes the GetMovie() method: Getting a Set of Records with the ASP.NET Web API Let’s modify our Movie API controller so that it returns a collection of movies. The following Movie controller has a new ListMovies() method which returns a (hard-coded) collection of movies: using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Net.Http; using System.Web.Http; using MyWebAPIApp.Models; namespace MyWebAPIApp.Controllers { public class MovieController : ApiController { public IEnumerable<Movie> ListMovies() { return new List<Movie> { new Movie {Id=1, Title="Star Wars", Director="Lucas"}, new Movie {Id=1, Title="King Kong", Director="Jackson"}, new Movie {Id=1, Title="Memento", Director="Nolan"} }; } } } Because we named our action ListMovies(), the default Web API route will never match it. Therefore, we need to add the following custom route to our Global.asax file (at the top of the RegisterRoutes() method): routes.MapHttpRoute( name: "ActionApi", routeTemplate: "api/{controller}/{action}/{id}", defaults: new { id = RouteParameter.Optional } ); This route enables us to invoke the ListMovies() method with the URL /api/movie/listmovies. Now that we have exposed our collection of movies from the server, we can retrieve and display the list of movies using jQuery in our HTML page: <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>List Movies</title> </head> <body> <div id="movies"></div> <script type="text/javascript" src="Scripts/jquery-1.6.2.min.js"></script> <script type="text/javascript"> listMovies(function (movies) { var strMovies=""; $.each(movies, function (index, movie) { strMovies += "<div>" + movie.Title + "</div>"; }); $("#movies").html(strMovies); }); function listMovies(callback) { $.ajax({ url: "/api/Movie/ListMovies", data: {}, type: "GET", contentType: "application/json;charset=utf-8", }).then(function(movies){ callback(movies); }); } </script> </body> </html> Inserting a Record with the ASP.NET Web API Now let’s modify our Movie API controller so it supports creating new records: public HttpResponseMessage<Movie> PostMovie(Movie movieToCreate) { // Add movieToCreate to the database and update primary key movieToCreate.Id = 23; // Build a response that contains the location of the new movie var response = new HttpResponseMessage<Movie>(movieToCreate, HttpStatusCode.Created); var relativePath = "/api/movie/" + movieToCreate.Id; response.Headers.Location = new Uri(Request.RequestUri, relativePath); return response; } The PostMovie() method in the code above accepts a movieToCreate parameter. We don’t actually store the new movie anywhere. In real life, you will want to call a service method to store the new movie in a database. When you create a new resource, such as a new movie, you should return the location of the new resource. In the code above, the URL where the new movie can be retrieved is assigned to the Location header returned in the PostMovie() response. Because the name of our method starts with “Post”, we don’t need to create a custom route. The PostMovie() method can be invoked with the URL /Movie/PostMovie – just as long as the method is invoked within the context of a HTTP POST request. The following HTML page invokes the PostMovie() method. <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Create Movie</title> </head> <body> <script type="text/javascript" src="Scripts/jquery-1.6.2.min.js"></script> <script type="text/javascript"> var movieToCreate = { title: "The Hobbit", director: "Jackson" }; createMovie(movieToCreate, function (newMovie) { alert("New movie created with an Id of " + newMovie.Id); }); function createMovie(movieToCreate, callback) { $.ajax({ url: "/api/Movie", data: JSON.stringify( movieToCreate ), type: "POST", contentType: "application/json;charset=utf-8", statusCode: { 201: function (newMovie) { callback(newMovie); } } }); } </script> </body> </html> This page creates a new movie (the Hobbit) by calling the createMovie() method. The page simply displays the Id of the new movie: The HTTP Post operation is performed with the following call to the jQuery $.ajax() method: $.ajax({ url: "/api/Movie", data: JSON.stringify( movieToCreate ), type: "POST", contentType: "application/json;charset=utf-8", statusCode: { 201: function (newMovie) { callback(newMovie); } } }); Notice that the type of Ajax request is a POST request. This is required to match the PostMovie() method. Notice, furthermore, that the new movie is converted into JSON using JSON.stringify(). The JSON.stringify() method takes a JavaScript object and converts it into a JSON string. Finally, notice that success is represented with a 201 status code. The HttpStatusCode.Created value returned from the PostMovie() method returns a 201 status code. Updating a Record with the ASP.NET Web API Here’s how we can modify the Movie API controller to support updating an existing record. In this case, we need to create a PUT method to handle an HTTP PUT request: public void PutMovie(Movie movieToUpdate) { if (movieToUpdate.Id == 1) { // Update the movie in the database return; } // If you can't find the movie to update throw new HttpResponseException(HttpStatusCode.NotFound); } Unlike our PostMovie() method, the PutMovie() method does not return a result. The action either updates the database or, if the movie cannot be found, returns an HTTP Status code of 404. The following HTML page illustrates how you can invoke the PutMovie() method: <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Put Movie</title> </head> <body> <script type="text/javascript" src="Scripts/jquery-1.6.2.min.js"></script> <script type="text/javascript"> var movieToUpdate = { id: 1, title: "The Hobbit", director: "Jackson" }; updateMovie(movieToUpdate, function () { alert("Movie updated!"); }); function updateMovie(movieToUpdate, callback) { $.ajax({ url: "/api/Movie", data: JSON.stringify(movieToUpdate), type: "PUT", contentType: "application/json;charset=utf-8", statusCode: { 200: function () { callback(); }, 404: function () { alert("Movie not found!"); } } }); } </script> </body> </html> Deleting a Record with the ASP.NET Web API Here’s the code for deleting a movie: public HttpResponseMessage DeleteMovie(int id) { // Delete the movie from the database // Return status code return new HttpResponseMessage(HttpStatusCode.NoContent); } This method simply deletes the movie (well, not really, but pretend that it does) and returns a No Content status code (204). The following page illustrates how you can invoke the DeleteMovie() action: <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Delete Movie</title> </head> <body> <script type="text/javascript" src="Scripts/jquery-1.6.2.min.js"></script> <script type="text/javascript"> deleteMovie(1, function () { alert("Movie deleted!"); }); function deleteMovie(id, callback) { $.ajax({ url: "/api/Movie", data: JSON.stringify({id:id}), type: "DELETE", contentType: "application/json;charset=utf-8", statusCode: { 204: function () { callback(); } } }); } </script> </body> </html> Performing Validation How do you perform form validation when using the ASP.NET Web API? Because validation in ASP.NET MVC is driven by the Default Model Binder, and because the Web API uses the Default Model Binder, you get validation for free. Let’s modify our Movie class so it includes some of the standard validation attributes: using System.ComponentModel.DataAnnotations; namespace MyWebAPIApp.Models { public class Movie { public int Id { get; set; } [Required(ErrorMessage="Title is required!")] [StringLength(5, ErrorMessage="Title cannot be more than 5 characters!")] public string Title { get; set; } [Required(ErrorMessage="Director is required!")] public string Director { get; set; } } } In the code above, the Required validation attribute is used to make both the Title and Director properties required. The StringLength attribute is used to require the length of the movie title to be no more than 5 characters. Now let’s modify our PostMovie() action to validate a movie before adding the movie to the database: public HttpResponseMessage PostMovie(Movie movieToCreate) { // Validate movie if (!ModelState.IsValid) { var errors = new JsonArray(); foreach (var prop in ModelState.Values) { if (prop.Errors.Any()) { errors.Add(prop.Errors.First().ErrorMessage); } } return new HttpResponseMessage<JsonValue>(errors, HttpStatusCode.BadRequest); } // Add movieToCreate to the database and update primary key movieToCreate.Id = 23; // Build a response that contains the location of the new movie var response = new HttpResponseMessage<Movie>(movieToCreate, HttpStatusCode.Created); var relativePath = "/api/movie/" + movieToCreate.Id; response.Headers.Location = new Uri(Request.RequestUri, relativePath); return response; } If ModelState.IsValid has the value false then the errors in model state are copied to a new JSON array. Each property – such as the Title and Director property — can have multiple errors. In the code above, only the first error message is copied over. The JSON array is returned with a Bad Request status code (400 status code). The following HTML page illustrates how you can invoke our modified PostMovie() action and display any error messages: <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Create Movie</title> </head> <body> <script type="text/javascript" src="Scripts/jquery-1.6.2.min.js"></script> <script type="text/javascript"> var movieToCreate = { title: "The Hobbit", director: "" }; createMovie(movieToCreate, function (newMovie) { alert("New movie created with an Id of " + newMovie.Id); }, function (errors) { var strErrors = ""; $.each(errors, function(index, err) { strErrors += "*" + err + "n"; }); alert(strErrors); } ); function createMovie(movieToCreate, success, fail) { $.ajax({ url: "/api/Movie", data: JSON.stringify(movieToCreate), type: "POST", contentType: "application/json;charset=utf-8", statusCode: { 201: function (newMovie) { success(newMovie); }, 400: function (xhr) { var errors = JSON.parse(xhr.responseText); fail(errors); } } }); } </script> </body> </html> The createMovie() function performs an Ajax request and handles either a 201 or a 400 status code from the response. If a 201 status code is returned then there were no validation errors and the new movie was created. If, on the other hand, a 400 status code is returned then there was a validation error. The validation errors are retrieved from the XmlHttpRequest responseText property. The error messages are displayed in an alert: (Please don’t use JavaScript alert dialogs to display validation errors, I just did it this way out of pure laziness) This validation code in our PostMovie() method is pretty generic. There is nothing specific about this code to the PostMovie() method. In the following video, Jon Galloway demonstrates how to create a global Validation filter which can be used with any API controller action: http://www.asp.net/web-api/overview/web-api-routing-and-actions/video-custom-validation His validation filter looks like this: using System.Json; using System.Linq; using System.Net; using System.Net.Http; using System.Web.Http.Controllers; using System.Web.Http.Filters; namespace MyWebAPIApp.Filters { public class ValidationActionFilter:ActionFilterAttribute { public override void OnActionExecuting(HttpActionContext actionContext) { var modelState = actionContext.ModelState; if (!modelState.IsValid) { dynamic errors = new JsonObject(); foreach (var key in modelState.Keys) { var state = modelState[key]; if (state.Errors.Any()) { errors[key] = state.Errors.First().ErrorMessage; } } actionContext.Response = new HttpResponseMessage<JsonValue>(errors, HttpStatusCode.BadRequest); } } } } And you can register the validation filter in the Application_Start() method in the Global.asax file like this: GlobalConfiguration.Configuration.Filters.Add(new ValidationActionFilter()); After you register the Validation filter, validation error messages are returned from any API controller action method automatically when validation fails. You don’t need to add any special logic to any of your API controller actions to take advantage of the filter. Querying using OData The OData protocol is an open protocol created by Microsoft which enables you to perform queries over the web. The official website for OData is located here: http://odata.org For example, here are some of the query options which you can use with OData: · $orderby – Enables you to retrieve results in a certain order. · $top – Enables you to retrieve a certain number of results. · $skip – Enables you to skip over a certain number of results (use with $top for paging). · $filter – Enables you to filter the results returned. The ASP.NET Web API supports a subset of the OData protocol. You can use all of the query options listed above when interacting with an API controller. The only requirement is that the API controller action returns its data as IQueryable. For example, the following Movie controller has an action named GetMovies() which returns an IQueryable of movies: public IQueryable<Movie> GetMovies() { return new List<Movie> { new Movie {Id=1, Title="Star Wars", Director="Lucas"}, new Movie {Id=2, Title="King Kong", Director="Jackson"}, new Movie {Id=3, Title="Willow", Director="Lucas"}, new Movie {Id=4, Title="Shrek", Director="Smith"}, new Movie {Id=5, Title="Memento", Director="Nolan"} }.AsQueryable(); } If you enter the following URL in your browser: /api/movie?$top=2&$orderby=Title Then you will limit the movies returned to the top 2 in order of the movie Title. You will get the following results: By using the $top option in combination with the $skip option, you can enable client-side paging. For example, you can use $top and $skip to page through thousands of products, 10 products at a time. The $filter query option is very powerful. You can use this option to filter the results from a query. Here are some examples: Return every movie directed by Lucas: /api/movie?$filter=Director eq ‘Lucas’ Return every movie which has a title which starts with ‘S’: /api/movie?$filter=startswith(Title,’S') Return every movie which has an Id greater than 2: /api/movie?$filter=Id gt 2 The complete documentation for the $filter option is located here: http://www.odata.org/developers/protocols/uri-conventions#FilterSystemQueryOption Summary The goal of this blog entry was to provide you with an overview of the new ASP.NET Web API introduced with the Beta release of ASP.NET 4. In this post, I discussed how you can retrieve, insert, update, and delete data by using jQuery with the Web API. I also discussed how you can use the standard validation attributes with the Web API. You learned how to return validation error messages to the client and display the error messages using jQuery. Finally, we briefly discussed how the ASP.NET Web API supports the OData protocol. For example, you learned how to filter records returned from an API controller action by using the $filter query option. I’m excited about the new Web API. This is a feature which I expect to use with almost every ASP.NET application which I build in the future.

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lubuntu - Sound card detected but no sound

- by CookieMonster

I installed Lubuntu 12.10 on my old laptop (Sharp Mebius PC-MR80J), but sound does not work. Here are things I tried. aplay -l does not output anything. When I run alsamixer, I see only one bar that says "Beep". I installed pavucontrol, pulseaudio, pulseaudio-utils and libgtk-3-0 and checked output devices, but I only see "Dummy ouput" and there is no hardware output devices. cat /proc/asound/cards returns the following. 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xfeb38000 irq 40 cat /proc/asound/devices outputs the following. 1: : sequencer 2: [ 0- 1]: hardware dependent 3: [ 0- 0]: hardware dependent 4: [ 0] : control 33: : timer The laptop was running Windows XP before and sound (both input and outpu) was working. What can I do now?

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Tears of Steel [Short Movie]

- by Asian Angel

In the future a young couple reach a parting of the ways because the young man can not handle the fact that she has a robotic arm. The bitterness of the break-up and bad treatment from her fellow humans lead to a dark future 40 years later where robots are relentlessly hunting and killing humans. Can the man who started her down this dark path redeem himself and save her or will it all end in ruin? TEARS OF STEEL – DOWNLOAD & WATCH [Original Blog Post & Download Links] Tears of Steel – Blender Foundation’s fourth short Open Movie [via I Love Ubuntu] HTG Explains: What is the Windows Page File and Should You Disable It? How To Get a Better Wireless Signal and Reduce Wireless Network Interference How To Troubleshoot Internet Connection Problems

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Sound distortion in Ubuntu 14.04

- by Aditya Shah

I recently installed Ubuntu 14.04 on my Dell XPS 15 (L502X). Previously I had Ubuntu 12.04 installed on the laptop along with Windows 8.1 dual boot. The sound worked perfectly fine in Ubuntu 12.04 and is working fine in Windows 8.1. Of late, I have been experiencing sound distortion coming from the subwoofer at moderately high volume levels. At the same level I am unable to reproduce the same effect in Windows 8.1. Also, I did a clean install of Ubuntu 14.04 over 12.04. Can anyone please confirm this and help me with this? Thanks

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Red Sand – An Awesome Fan Made Mass Effect Prequel [Short Movie]

- by Asian Angel

Welcome to Mars where humanity has just discovered the Prothean Ruins and Element Zero, but danger abounds as the Red Sand terrorist group seeks to claim Mars for themselves! If you love the Mass Effect game series, then you will definitely want to watch this awesome fan made prequel set 35 years before the events of the first game. Synopsis From YouTube: Serving as a prequel to the MASS EFFECT game series,”Red Sand” is set 35 years before the time of Commander Shepard and tells the story of the discovery of ancient ruins on Mars. Left behind by the mysterious alien race known as the Protheans, the ruins are a treasure trove of advanced technology and the powerful Element Zero, an energy source beyond humanity’s wildest dreams. As the Alliance research team led by Dr. Averroes (Ayman Samman) seeks to unlock the secrets of the ruins, a band of marauders living in the deserts of Mars wants the ruins for themselves. Addicted to refined Element Zero in the form of a narcotic nicknamed “Red Sand” which gives them telekinetic “biotic” powers, these desert-dwelling terrorists will stop at nothing to control the ruins and the rich vein of Element Zero at its core. Standing between them and their goal are Colonel Jon Grissom (Mark Meer), Colonel Lily Sandhurst (Amy Searcy), and a team of Alliance soldiers tasked with defending the ruins at all costs. At stake – the future of humanity’s exploration of the galaxy, and the set up for the MASS EFFECT storyline loved by millions of gamers worldwide. RED SAND: a Mass Effect fan film – starring MARK MEER [via Geeks are Sexy] 7 Ways To Free Up Hard Disk Space On Windows HTG Explains: How System Restore Works in Windows HTG Explains: How Antivirus Software Works

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Sound Juicer doesn't respect Lame's codec settings when ripping CDs

- by Takkat

Using Sound Juicer I am able to rip CDs very conveniently. I would like to rip them in about 256 kbit/s variable bitrate. To accomplish this I have defined the settings for mp3 in gnome-audio-profiles-properties as follows: audio/x-raw-int,rate=44100,channels=2 ! lame name=enc mode=0 vbr-quality=0 ! id3v2mux where vbr-quality=0 should give me a variable bitrate averaging 245 kbit/s. The resulting files however always say they are in 128 kbit/s. Is this only a tagging bug or is indeed the bitrate that low? How could I find out?

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Game Sound Effects Availability

- by Ben

Is there a need in the community for affordable game-focused sound effect packs? I am considering putting together some effects specifically geared toward games and indie developers that desire to get a working prototype quickly off the ground. Is there a need for this, or is there another standard "go-to" spot for this kind of thing? I want to offer value to the community but wanted to assess the need first. If anyone has thoughts, insight, or personal opinions on this I would love to hear it!

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To make use of 5.1 sound do i need a 5.1 headphone/speaker?

- by Fellknight

I recently bought a Toshiba X500 laptop with decent speakers & sound card in it. I want to use headphones but im unsure if they also need to have the same audio channels as the sound card (5.1 in this case). Also The laptop itself only has the two standard sound ports - headphones and microphone, does 5.1 headphones require a special kind of connection?.

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Incorporating Sound in UPK 3.6.1

- by [email protected]

UPK 3.6.1 now offers developers the ability to easily record and edit sound from right within the UPK Developer. Sound can be recorded in either the concept pane or individual topic frames. A developer can record sound at the same time they're capturing a transaction or by adding sound after recording, on a frame-by-frame basis. The sound editor in UPK 3.6.1 allows developers to perform a variety of editing functions: play, insert sound or silence, delete, adjust amplification, and import or export sound files, just to name a few. Internally, Oracle Product Management is using this functionality to create "UPK-casts" for enablement purposes. We do this by capturing PowerPoint slides, then adding sound, allowing us to create our own recorded "webcasts". Because we develop these independently, we control the content and have more flexibility to edit the content as needed. Whether it's a change to a single frame or an entire topic, we can react quickly, providing our users with the most up-to-date information. And you don't need expensive equipment or a sound studio to achieve good sound quality. Depending on how your end users are accessing your content, a $35 head set can do the trick. Just be sure to follow the best practices for sound recording as outlined in the UPK documentation. Tip: we've found that we get the best results with sound consistency when we record all the sound for a topic at one sitting. UPK 3.6.1 is now available for download from Oracle E-Delivery. Upgrade today and have fun creating more robust, engaging content for your users! - Karen Rihs, Oracle UPK & Tutor Outbound Product Management

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Sound issues after trying everything

- by Lerp

I cannot get my sound working properly, no matter what I do, there's always some problem. It's very annoying as it's the only thing preventing me from making Ubuntu my main OS. At the moment my sound always plays through both my speakers and my headphones regardless except the sound through the headphones is crackly. It is also a bit quiet even though everything is maxed. I've managed to improve the situation to a point where the sound out of my speakers is perfect but I have none at all from my headphones. I do have two connectors listed in the sound settings but regardless of which one is selected it always plays through the speakers. I think this might have something to do with the fact that my speakers are plugging into the front of my computer, typically the headphone jack, and my headphones are plugging into the back but when I try disconnecting the speakers from the front there is still no sound from the headphones. I fixed the speaker sound by going through the sound settings and making sure they were all set to 100% then rebooting. Things I have tried: Maxing everything and unmuting everything in alsamixer Uninstalling pulseaudio Making gstreamer use only alsa via gstreamer-properties. This worked with the sound test button including independent sound between headphones and speakers but when I reset the computer it no longer worked. So I tried setting it manually in gconf-editor which didn't work either. Reinstalling alsa and pulseaudio Setting the model in /etc/modprobe.d/alsa-base.conf to 6stack and 6stack-dig neither worked. Upgrading to 12.10 Here's some command output to help you diagnose my problem. aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 1: AD198x Digital [AD198x Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 2: AD198x Headphone [AD198x Headphone] Subdevices: 1/1 Subdevice #0: subdevice #0 sudo lshw -C sound *-multimedia description: Audio device product: 82801JI (ICH10 Family) HD Audio Controller vendor: Intel Corporation physical id: 1b bus info: pci@0000:00:1b.0 version: 00 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=snd_hda_intel latency=0 resources: irq:70 memory:f7ff8000-f7ffbfff cat /proc/asound/card*/codec* | grep "Codec" Codec: Analog Devices AD1989B cat /etc/modprobe.d/alsa-base.conf # autoloader aliases install sound-slot-0 /sbin/modprobe snd-card-0 install sound-slot-1 /sbin/modprobe snd-card-1 install sound-slot-2 /sbin/modprobe snd-card-2 install sound-slot-3 /sbin/modprobe snd-card-3 install sound-slot-4 /sbin/modprobe snd-card-4 install sound-slot-5 /sbin/modprobe snd-card-5 install sound-slot-6 /sbin/modprobe snd-card-6 install sound-slot-7 /sbin/modprobe snd-card-7 # Cause optional modules to be loaded above generic modules install snd /sbin/modprobe --ignore-install snd $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-ioctl32 ; /sbin/modprobe --quiet --use-blacklist snd-seq ; } # # Workaround at bug #499695 (reverted in Ubuntu see LP #319505) install snd-pcm /sbin/modprobe --ignore-install snd-pcm $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-pcm-oss ; : ; } install snd-mixer /sbin/modprobe --ignore-install snd-mixer $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-mixer-oss ; : ; } install snd-seq /sbin/modprobe --ignore-install snd-seq $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; /sbin/modprobe --quiet --use-blacklist snd-seq-oss ; : ; } # install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; : ; } # Cause optional modules to be loaded above sound card driver modules install snd-emu10k1 /sbin/modprobe --ignore-install snd-emu10k1 $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-emu10k1-synth ; } install snd-via82xx /sbin/modprobe --ignore-install snd-via82xx $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq ; } # Load saa7134-alsa instead of saa7134 (which gets dragged in by it anyway) install saa7134 /sbin/modprobe --ignore-install saa7134 $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist saa7134-alsa ; : ; } # Prevent abnormal drivers from grabbing index 0 options bt87x index=-2 options cx88_alsa index=-2 options saa7134-alsa index=-2 options snd-atiixp-modem index=-2 options snd-intel8x0m index=-2 options snd-via82xx-modem index=-2 options snd-usb-audio index=-2 options snd-usb-caiaq index=-2 options snd-usb-ua101 index=-2 options snd-usb-us122l index=-2 options snd-usb-usx2y index=-2 # Ubuntu #62691, enable MPU for snd-cmipci options snd-cmipci mpu_port=0x330 fm_port=0x388 # Keep snd-pcsp from being loaded as first soundcard options snd-pcsp index=-2 # Keep snd-usb-audio from beeing loaded as first soundcard options snd-usb-audio index=-2 options snd-hda-intel model=6stack

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Turn Photos and Home Videos into Movies with Windows Live Movie Maker

- by DigitalGeekery

Are you looking for an easy way to take your digital photos and videos and turn them into a movie or slideshow? Today we’ll take a detailed look at how to do use Windows Live Movie Maker. Installation Windows Live Movie Maker comes bundled as part of the Windows Live Essentials suite (link below). However, you don’t have to install any of the programs you may not want. Take notice of the You’re almost done screen. Before clicking Continue, be sure to uncheck the boxes to set your search provider and homepage. Adding Pictures and Videos Open Windows Live Movie Maker. You can add videos or photos by simply dragging and dropping them onto the storyboard area. You can also click on the storyboard area or on the Add videos and photos button on the Home tab to browse for videos and photos. Windows Live Movie Maker supports most video, image, and audio file types. Select your files and add click Open to add them to Windows Live Movie Maker. By default WLMM doesn’t allow you to add files from network locations…so check out our article on how to add network support to Windows Live MovieMaker if the files you want to add are on a network drive. Layout All of your added clips will appear in the storyboard area on the right, while the currently selected clip will appear in the preview window on the left. You can adjust the size of the two areas by clicking and dragging the dividing line in the middle. Make the clips on the storyboard bigger or smaller by clicking on the thumbnail size icon. The slider at the lower right adjusts the zoom time scale. Previewing your Movie At any time, you can playback your movie and preview how it will look in the Preview window by clicking the space bar, or by pushing the play button under the preview window. You can also manually move the preview bar slider across the storyboard to view the clips as the video progresses. Adjusting Clips on the Storyboard You can click and drag clips on the storyboard to change the order in which the photos and videos appear. Adding Music Nothing brings a movie to life quite like music. Selecting Add music will add your music to the beginning of the movie. Select Add music at the current point to include it in the movie to the current location of your preview bar slider, then browse for your music clip. WLMM supports many common audio files such as WAV, MP3, M4A, WMA, AIFF, and ASF. The music clip will appear above the video / photos clips on the storyboard. You can change the location of music clips by clicking and dragging them to a different location on the storyboard. Add Titles, Captions, and Credits To add a Title screen to your movie, click the Title button on the Home tab. Type your title directly into the text box on the preview screen. The title will be placed at the location of the preview slider on the storyboard. However, you can change the location by clicking and dragging title to other areas of the storyboard. On the Format tab, there are a handful of text settings. You can change the font, color, size, alignment, and transparency. The Adjust group allows you to change the background color, edit the text, and set the length of time the Title will appear in the movie. The Effects group on the Format tab allows you to select an effect for your title screen. By hovering your cursor over each option, you will get a live preview of how each effect will appear in the preview window. Click to apply any of the effects. For captions, select where you want your caption to appear with the preview slider on the storyboard, then click the captions button on the Home tab. Just like the title, you type your caption directly into the text box on the preview screen, and you can make any adjustments by using the Font and Paragraph, Adjust, and Effects groups above. Credits are done the same as titles and captions, except they are automatically placed at the end of the movie. Transitions Go to the Animation tab on the ribbon to apply transitions. Select a clip from the storyboard and hover over one of the transition to see it in the preview window. Click on the transition to apply it to the clip. You can apply transitions separately to clips or hold down Ctrl button while clicking to select multiple clips to which to apply the same transition. Pan and zoom effects are also located on the Animations tab, but can be applied to photos only. Like transition, you can apply them individually to a clip or hold down Ctrl button while clicking to select multiple clips to which to apply the same pan and zoom effect. Once applied, you can adjust the duration of the transitions and pan and zoom effects. You can also click the dropdown for additional transitions or effects. Visual Effects Similar to Pan and Zoom and Transitions, you can apply a variety of Visual Effects to individual or multiple clips. Editing Video and Music Note: This does not actually edit the original video you imported into your Windows Live Movie Maker project, only how it appears in your WLMM project. There are some very basic editing tools located on the Home tab. The Rotate left and Rotate right button will adjust any clip that may be oriented incorrectly. The Fit to music button will automatically adjust the duration of the photos (if you have any in your project) to fit the length of the music in your movie. Audio mix allows you to change the volume level You can also do some slightly more advanced editing from the Edit tab. Select the video clip on the storyboard and click the Trim tool to edit or remove portions of a video clip. Next, click and drag the sliders in the preview windows to select the are you wish to keep. For example, the area outside the sliders is the area trimmed from the movie. The area inside is the section that is kept in the movie. You can also adjust the Start and End points manually on the ribbon. When you are finished, click Save trim. You can also split your video clips. Move the preview slider to the location in the video clip where you’d like to split it, and select Split. Your video will be split into separate sections. Now you can apply different effects or move them to different locations on the storyboard. Editing Music Clips Select the music clip on the storyboard and then the Options tab on the ribbon. You can adjust the music volume by moving the slider right and left. You can also choose to have your music clip fade in or out at the beginning and end of your movie. From the Fade in and Fade out dropdowns, select None, Slow, Medium, or Fast. To adjust the sound of your audio clips, click on the Edit tab, select the Video volume button, and adjust the slider. Move it all the way to the left to mute any background noise in your video clips. AutoMovie As you have seen, Windows Live Movie Maker allows you to add effects, transitions, titles, and more. If you don’t want to do any of that stuff yourself, AutoMovie will automatically add title, credits, cross fade transitions between items, pan and zoom effects to photos, and fit your project to the music. Just select the AutoMovie button on the Home tab. You can go from zero to movie in literally a couple minutes. Uploading to YouTube You can share your video on YouTube directly from Windows Live Movie Maker. Click on the YouTube icon in the Sharing group on the Home tab. You’ll be prompted for your YouTube username and password. Fill in the details about your movie and click Publish. The movie will be converted to WMV before being uploaded to YouTube. As soon as the YouTube conversion is complete, you’re new movie is live and ready to be viewed. Saving your Movie as a Video File Select the icon at the top left, then select Save movie. As you hover your mouse over each of the options, you will see the output display size, aspect ratio, and estimated file size per minute of video. All of these settings will output your movie as a WMV file. (Unfortunately, the only option is to save a movie as a WMV file.) The only difference is how they are encoded based on preset common settings. The Burn to DVD option also outputs a WMV file, but then opens Windows DVD Maker and walks you through the process of creating and burning a DVD. If you choose the Burn to DVD option, close this window when the WMV file conversion is complete and the Windows DVD Maker will prompt you to begin. When your movie is finished, it’s time to relax and enjoy. Conclusion Windows Live Movie Maker makes it easy for the average person to quickly churn out nice looking movies and slideshows from there own pictures and videos. However, long time users of previous editions (formerly called Windows Movie Maker) will likely be disappointed by some features missing in Windows Live Movie Maker that existed in earlier editions. Looking for details on burning your new project to DVD, check out our article on how to create and author DVDs with Windows DVD Maker. Download Windows Live Movie Maker Similar Articles Productive Geek Tips Family Fun: Share Photos with Photo Gallery and Windows Live SpacesCreate and Author DVDs in Windows 7Rotate a Video 90 degrees with VLC or Windows Live Movie MakerInstall Windows Live Essentials In Windows 7How to Make/Edit a movie with Windows Movie Maker in Windows Vista TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips CloudBerry Online Backup 1.5 for Windows Home Server Snagit 10 VMware Workstation 7 Acronis Online Backup Windows Firewall with Advanced Security – How To Guides Sculptris 1.0, 3D Drawing app AceStock, a Tiny Desktop Quote Monitor Gmail Button Addon (Firefox) Hyperwords addon (Firefox) Backup Outlook 2010

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Ubuntu 12.04 - No sound - HELP!

- by Bruno Tacca

I'm panicking... my sound stopped working after I tried to set-up my notebook speakers, plus two headphone jacks... My idea was to multichannel the sound to 3 channels, built-in speakers, and sound-card 2 headphone jacks. After a couple efforts I did it with 2 channels, speakers and 1 headphone jack, but the other wasn't working. After more tries and tries, sound stop working. I just want my sound back... crying like a baby on the floor. And, if possible, but not necessary, a simple guide to active the 3 channels. xD I will post the diagnosis according to https://help.ubuntu.com/community/SoundTroubleshootingProcedure STEP 1 Did it, still no sound. STEP 2 Did it, still no sound. STEP 3 and #STEP 4 (I removed the log cause there is a limit of characters to be posted.) The log can be found here: https://answers.launchpad.net/ubuntu/+source/alsa-driver/+question/238653 STEP 5 Rebooted, still no sound. STEP 6 Did it. In the Output Devices tab, nothing is muted. I play a music with the Rhythmbox Music Player, I don't hear anything but in the pavucontrol I can see in the Built-in Audio Analog Stereo a sound bar shaking... but, no sound. STEP 7 In alsamixer, AlsaMixer v1.0.25 Card: HDA Intel PCH Chip: Creative CA0132 information View: F3:[Playback] F4: Capture F5: All Item: Headphone [dB gain: 25.00, 25.00] Then, I have 5 columns Headphone, Speaker, PCM, S/PDIF, S/PDIF Default PCM A little weird when I try to mute the Headphone and the Speaker, here what happens: Starting both unmutted, mutting headphone cause speaker being mutted automaticaly. Starting both unmutted, mutting speaker cause headphone being mutted automaticaly. Starting both mutted, possible to unmute both separately. STEP 8 I cannot hear sound on both (headphone and/or speaker). STEP 9 Dual boot... Restarted, windows was with sound at max volume. Restarted again, still no sound at ubuntu. I heard something when ubuntu started, a little noise, then silence again. The sound icon always start mutted, after unmutting, I have no sound. STEP 10 I dont have this command in my ubuntu. STEP 11 Tried at STEP 8, no sound. There are no problem with jumpers or hardware, cause I have sound working on windows. STEP 12 No way to open my alienware and loss the warranty x.X" STEP 13 I think it's loaded, judging my the logs STEP 14 Alienware M17xR4, the hardware is listed in the logs above, at STEP 4. There are two headphone hacks, one with just an headphone printed above, and the other with an headset (with mic) printed, there is a mic jack too, and a spdif (optical) too. STEP 15 I dont want to enable S/PDIF STEP 16 I never used the HDMI output, yet... Thanks in advance. I hope I listed all the information you need.

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Sentence Tree v/s Words List

- by Rohit Jose

I was recently tasked with building a Name Entity Recognizer as part of a project. The objective was to parse a given sentence and come up with all the possible combinations of the entities. One approach that was suggested was to keep a lookup table for all the know connector words like articles and conjunctions, remove them from the words list after splitting the sentence on the basis of the spaces. This would leave out the Name Entities in the sentence. A lookup is then done for these identified entities on another lookup table that associates them to the entity type, for example if the sentence was: Remember the Titans was a movie directed by Boaz Yakin, the possible outputs would be: {Remember the Titans,Movie} was {a movie,Movie} directed by {Boaz Yakin,director} {Remember the Titans,Movie} was a movie directed by Boaz Yakin {Remember the Titans,Movie} was {a movie,Movie} directed by Boaz Yakin {Remember the Titans,Movie} was a movie directed by {Boaz Yakin,director} Remember the Titans was {a movie,Movie} directed by Boaz Yakin Remember the Titans was {a movie,Movie} directed by {Boaz Yakin,director} Remember the Titans was a movie directed by {Boaz Yakin,director} Remember the {the titans,Movie,Sports Team} was {a movie,Movie} directed by {Boaz Yakin,director} Remember the {the titans,Movie,Sports Team} was a movie directed by Boaz Yakin Remember the {the titans,Movie,Sports Team} was {a movie,Movie} directed by Boaz Yakin Remember the {the titans,Movie,Sports Team} was a movie directed by {Boaz Yakin,director} The entity lookup table here would contain the following data: Remember the Titans=Movie a movie=Movie Boaz Yakin=director the Titans=Movie the Titans=Sports Team Another alternative logic that was put forward was to build a crude sentence tree that would contain the connector words in the lookup table as parent nodes and do a lookup in the entity table for the leaf node that might contain the entities. The tree that was built for the sentence above would be: The question I am faced with is the benefits of the two approaches, should I be going for the tree approach to represent the sentence parsing, since it provides a more semantic structure? Is there a better approach I should be going for solving it?

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How to switch 'default' sound device controlled by hardware keys in Xubuntu?

- by Ruth

I installed xubuntu-desktop on a 12.04 Ubuntu upgrade after finding Gnome3 lacking. I've mostly been happy, but I've found an odd and frustrating bug. My laptop has two sound 'outputs' - an HDMI-out plug I never use, and the onboard speakers/headphones. For some reason, the hardware keys have been mapped to the HDMI output, even if I set it as 'fallback' in pavucontrol, and notify-osd only displays changes in the HDMI output (though the panel indicator volume control controls onboard sound). I'd ideally like both hardware keys and notify-osd to be looking at the onboard sound, though if I can't get notify-osd it's an acceptable loss. Having to click through a bunch of stuff to change volume is driving me crazy, though. Googling suggested that it /may/ be a Pulseaudio/ALSA conflict, but the hardware keys seem to change at least indicated volume in pavucontrol for HDMI as expected (I don't have an HDMI cable to test actual sound output)

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Squeeze and no sound

- by user114

hello i installed debian squeeze in my pc but i dont have any sound , my sound device is Ac97 and i installed these package in my system alsa-base alsa-oss alsa-tools alsa-utils alsamixergui gstreamer0.10-alsa libao-common libao4 libasound2 linux-sound-base oss-compat when i want to run alsamixer io got this message cannot open mixer: No such file or directory anyone know why i got this message ? and i cant hear any sound in my pc?

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