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• What emulation mode for an epson printer is best?

  - by deamon

  I'm looking for a color duplex printer for Ubuntu. My favourites are Epson B-310N and Brother HL 4050CDN. The latter should be work with linux, but I'd prefer the first one, because printing costs are cheaper. The epson printer has "Epson ESC/P Raster", "PCL3", and "Epson ESC/P2" emulation. Can I use the printer with one of those emulations under linux? Were there any restrictions (like unusable duplex)?

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• unity top menu keyboard shortcuts for desktop alone, no programs running

  - by user108754

  Alt+F1 accesses the launcher menu, with arrow keys to navigate the list (side menu). Alt+F10 accesses the top bar in an open application (or Alt+an underlined menu item letter), which allows access to the global ubuntu settings in the top right (battery, wifi/networking, audio, time/calendar, user, power). Alt+F10, when no application is open and you're just staring at the desktop, accesses those ubuntu settings immediately. But the top menu bar does list, in the top left, menu commands for the desktop per se (create new folder, go home, help, start server, etc). These can be accessed only by mouse hovering and click. No way to get to them only by keyboard (arrow keys just cycle through the settings, don't jump over to the left side of the top bar). Is there a keyboard shortcut way to access the desktop menu bar for manipulating icons on your desktop and other general things? Or is this a work in progress for unity? If you use the context menu key (or some equivalent you've set to generate that signal) along with other shortcuts for working on the desktop, you can cover most of the functionality of the top menu bar. However, I don't want to memorize those keys to become proficient. I just want a way to open and browse through those menu items (and they aren't ALL available through hotkeys anyway).

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• VMWare Fusion Folder Sharing Not Working with Server

  - by Dave Long

  I have a Ubuntu Server running in VMWare Fusion 3.1.2 on my MacBook Pro for Java development and all my projects sit on my Mac in ~/Workspace/ColdFusion. I had ColdFusion/ shared with my VM through the VMWare tools, and it was working perfectly up until friday when the folder sharing just stopped. No updates on either mac or linux besides an iTunes update. I tried uninstalling the VMWare tools and reinstalling them but I get an error at the end of the install. It appears that when I reinstall the tools there are files left over from the old installation. Is there a way to force the unsinstall script to completely uninstall and remove all files for the VMWare-Tools? I know the shared folder used to mount at /mnt/hgfs/ColdFusion.

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• How can I patch a PPA and then upload the patched source to my PPA?

  - by user318938

  I'm trying to do something very simple but I'm having a lot of problems. I am trying to have a patched wine PPA. I want to download the wine1.7 ppa source from the ubuntu team ppa, apply 1 patch file, and upload the patched source to my PPA to be built. I'm getting the source with apt-get source wine1.7. That part is fine. I have tried using quilt, but that doesn't help. My PPA builds fine. The problem is, it never has my patch applied to the binaries. How can I patch a PPA and upload the patched source to my PPA to be built? Thanks

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• Trying to install flash player on ubuntu 12.04

  - by Eric

  I am having trouble installing this program. I do not know how to locate the browser plugins directory, or change the directory in the terminal. Installation instructions Installing using the plugin tar.gz: Unpack the plugin tar.gz and copy the files to the appropriate location. Save the plugin tar.gz locally and note the location the file was saved to. Launch terminal and change directories to the location the file was saved to. Unpack the tar.gz file. Once unpacked you will see the following: + libflashplayer.so + /usr Identify the location of the browser plugins directory, based on your Linux distribution and Firefox version Copy libflashplayer.so to the appropriate browser plugins directory. At the prompt type: cp libflashlayer.so <BrowserPluginsLocation> Copy the Flash Player Local Settings configurations files to the /usr directory. At the prompt type: sudo cp -r usr/* /usr Installing the plugin using RPM: - As root, enter in terminal: rpm -Uvh <rpm_package_file> - Click Enter key and follow prompts Installing the standalone player Unpack the tar.gz file To execute the standalone player Double-click, or enter in terminal: ./flashplayer

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• /etc/postfix/transport missing

  - by Thufir

  I'm following the mailman guide but cannot locate /etc/postfix/: root@dur:~# ll /etc/postfix/ total 124 drwxr-xr-x 3 root root 4096 Aug 27 20:04 ./ drwxr-xr-x 170 root root 12288 Aug 27 19:58 ../ -rw-r--r-- 1 root root 373 Aug 14 01:44 dynamicmaps.cf -rw-r--r-- 1 root root 2252 Aug 27 20:04 main.cf -rw-r--r-- 1 root root 1280 Aug 16 23:59 main.cf.1.orig -rw-r--r-- 1 root root 3298 Aug 25 16:59 main.cf.2.mysql -rw-r--r-- 1 root root 1323 Aug 26 00:38 main.cf.3.dovecot -rw-r--r-- 1 root root 2092 Aug 27 20:01 main.cf.4 -rw-r--r-- 1 root root 5563 Aug 14 01:43 master.cf -rw-r--r-- 1 root root 150 Aug 17 00:21 mysql_alias.cf -rw-r--r-- 1 root root 150 Aug 17 00:22 mysql_domains.cf -rw-r--r-- 1 root root 150 Aug 17 00:21 mysql_mailbox.cf -rw-r--r-- 1 root root 19707 Apr 13 13:33 postfix-files -rwxr-xr-x 1 root root 8729 Oct 6 2011 postfix-script* -rwxr-xr-x 1 root root 26498 Apr 13 13:33 post-install* drwxr-xr-x 2 root root 4096 Apr 13 13:33 sasl/ root@dur:~#

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• System crash when trying to drag cells in LibreOffice Calc

  - by Juhele

  Some time after upgrady to Saucy I noticed several freezes and crashes when simply trying to drag content of selected cells to another place in LibreOffice Calc (version 4.1.2.3 from repository). The system stops responding - although for example Clementine still plays music from playlist - I am not able to do anything with the mouse (cursor is able to move, but no reaction on clicking). Did anybody of you also have this problem and if yes, do you have a solution? I tried to completely remove LibreOffice and install them again but did not worked for me. Currently avoiding use of drag and drop in Calc but it is stupid. Any advice would be helpful. Thanks

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• Bash script using eyeD3 to remove extra tags from mp3 files

  - by jaguare22

  I found what looks like the perfect script for this but getting errors. Hoping someone can see problem. I am running 12.04 Server. Error is - awk: line 0: regular expression compile failed (missing '(') ): awk: line 0: regular expression compile failed (missing '(') ) The following tags have been found in the mp3s: These tags are to be stripped: Here is a the script obtained from savvyadmin !/bin/bash Script name: strip-tags.sh Original Author: Ian of DarkStarShout Blog Site: http://darkstarshout.blogspot.com/ Options slightly modified to liking of SavvyAdmin.com oktags="TALB APIC TCON TPE1 TPE2 TPE3 TIT2 TRCK TYER TCOM TPOS" indexfile=mktemp Determine tags present: find . -iname "*.mp3" -exec eyeD3 --no-color -v {} \; $indexfile tagspresent=sort -u $indexfile | awk -F\): '/^<.*$/ {print $1}' \ | uniq | awk -F\)\> '{print $1}' | awk -F\( '{print $(NF)}' \ | awk 'BEGIN {ORS=" "} {print $0}' rm $indexfile Determine tags to strip: tostrip=echo -n $tagspresent $oktags $oktags \ | awk 'BEGIN {RS=" "; ORS="\n"} {print $0}' | sort | uniq -u \ | awk 'BEGIN {ORS=" "} {print $0}' Confirm action: echo echo The following tags have been found in the mp3s: echo $tagspresent echo These tags are to be stripped: echo $tostrip echo echo -n Press enter to confirm, or Ctrl+C to cancel... read dummy Strip 'em stripstring=echo $tostrip \ | awk 'BEGIN {FS="\n"; RS=" "} {print "--set-text-frame=" $1 ": "}' First pass copies any v1.x tags to v2.3 and strips unwanted tag data. Second pass removes v1.x tags, since I don't like to use them. Without --no-tagging-time-frame, a new unwanted tag is added. :-) find . -iname "*.mp3" \ -exec eyeD3 --to-v2.3 --no-tagging-time-frame $stripstring {} \; \ -exec eyeD3 --remove-v1 --no-tagging-time-frame {} \; echo "Script complete!"

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• My sound stopped working today, how can I fix it?

  - by Oli

  This seems to be a problem with pulseaudio. I was logged in over VNC on my phone and started playing a video this caused X to crash (as sometimes happens). I restarted and suddenly the sound doesn't work. I have a Intel HDA/Realtek ALC889 00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller alsamixer is detecting this just fine. PulseAudio doesn't detect this alsa device so is using auto_null as the default sink (logs below). When I properly kill PulseAudio (tell it not to auto-start) direct ALSA communication with the sound card works just fine. speaker-test, for example, works. So the hardware and ALSA layers are fine IMO. In the logs, it seems that the card might be "busy" but I really don't know how or why it would be now (and never before). Is there an ALSA lock file somewhere that it still there because of my crash? I just ran sudo fuser /dev/snd/* and saw this: oli@bert:~$ sudo fuser /dev/snd/* /dev/snd/controlC0: 1884 /dev/snd/pcmC0D0c: 1884m /dev/snd/timer: 1884 A look at the process list (ps aux | grep 1884) tells me process 1884 is arecord -c 1 -f S16_LE -r 8000 -t raw. No idea what this is or why it's running. When I try and kill arecord (as root), it just respawns and rebinds on the hardware. I'm in a very annoying situation where I don't know what is going on and don't know how to find out. I'm open to all suggestions to get this working again. Fire away. And here's what I get when I stop PA auto-loading, kill it and then start it with -vvvv. oli@bert:~$ pulseaudio -vvvvv I: main.c: setrlimit(RLIMIT_NICE, (31, 31)) failed: Operation not permitted I: main.c: setrlimit(RLIMIT_RTPRIO, (9, 9)) failed: Operation not permitted D: core-rtclock.c: Timer slack is set to 50 us. D: core-util.c: RealtimeKit worked. I: core-util.c: Successfully gained nice level -11. I: main.c: This is PulseAudio 0.9.21-63-gd3efa-dirty D: main.c: Compilation host: x86_64-pc-linux-gnu D: main.c: Compilation CFLAGS: -g -O2 -g -Wall -O3 -Wall -W -Wextra -pipe -Wno-long-long -Winline -Wvla -Wno-overlength-strings -Wunsafe-loop-optimizations -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security -Wmissing-include-dirs -Wformat-nonliteral -Wold-style-definition -Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align -Wstrict-aliasing=2 -Wwrite-strings -Wno-unused-parameter -ffast-math -Wp,-D_FORTIFY_SOURCE=2 -fno-common -fdiagnostics-show-option D: main.c: Running on host: Linux x86_64 2.6.38-rc3 #1 SMP Tue Feb 1 10:53:04 GMT 2011 D: main.c: Found 8 CPUs. I: main.c: Page size is 4096 bytes D: main.c: Compiled with Valgrind support: no D: main.c: Running in valgrind mode: no D: main.c: Running in VM: no D: main.c: Optimised build: yes D: main.c: All asserts enabled. I: main.c: Machine ID is 8310740c4729ef474fe5ecec4bbf5a6b. I: main.c: Session ID is 8310740c4729ef474fe5ecec4bbf5a6b-1297338553.571075-1050119523. I: main.c: Using runtime directory /home/oli/.pulse/8310740c4729ef474fe5ecec4bbf5a6b-runtime. I: main.c: Using state directory /home/oli/.pulse. I: main.c: Using modules directory /usr/lib/pulse-0.9.21/modules. I: main.c: Running in system mode: no I: main.c: Fresh high-resolution timers available! Enjoy ol' chap! I: cpu-x86.c: CPU flags: CMOV MMX SSE SSE2 SSE3 SSSE3 SSE4_1 SSE4_2 I: svolume_mmx.c: Initialising MMX optimized functions. I: remap_mmx.c: Initialising MMX optimized remappers. I: svolume_sse.c: Initialising SSE2 optimized functions. I: remap_sse.c: Initialising SSE2 optimized remappers. I: sconv_sse.c: Initialising SSE2 optimized conversions. D: memblock.c: Using shared memory pool with 1024 slots of size 64.0 KiB each, total size is 64.0 MiB, maximum usable slot size is 65472 D: database-tdb.c: Opened TDB database '/home/oli/.pulse/8310740c4729ef474fe5ecec4bbf5a6b-device-volumes.tdb' I: module-device-restore.c: Sucessfully opened database file '/home/oli/.pulse/8310740c4729ef474fe5ecec4bbf5a6b-device-volumes'. I: module.c: Loaded "module-device-restore" (index: #0; argument: ""). D: database-tdb.c: Opened TDB database '/home/oli/.pulse/8310740c4729ef474fe5ecec4bbf5a6b-stream-volumes.tdb' I: module-stream-restore.c: Sucessfully opened database file '/home/oli/.pulse/8310740c4729ef474fe5ecec4bbf5a6b-stream-volumes'. I: module.c: Loaded "module-stream-restore" (index: #1; argument: ""). D: database-tdb.c: Opened TDB database '/home/oli/.pulse/8310740c4729ef474fe5ecec4bbf5a6b-card-database.tdb' I: module-card-restore.c: Sucessfully opened database file '/home/oli/.pulse/8310740c4729ef474fe5ecec4bbf5a6b-card-database'. I: module.c: Loaded "module-card-restore" (index: #2; argument: ""). I: module.c: Loaded "module-augment-properties" (index: #3; argument: ""). D: cli-command.c: Checking for existance of '/usr/lib/pulse-0.9.21/modules/module-udev-detect.so': success D: module-udev-detect.c: /dev/snd/controlC0 is accessible: yes D: module-udev-detect.c: /devices/pci0000:00/0000:00:1b.0/sound/card0 is busy: yes I: module-udev-detect.c: Found 1 cards. I: module.c: Loaded "module-udev-detect" (index: #4; argument: ""). D: cli-command.c: Checking for existance of '/usr/lib/pulse-0.9.21/modules/module-bluetooth-discover.so': success D: dbus-util.c: Successfully connected to D-Bus system bus ba7c9a1f90b3d49d930bca2100000015 as :1.62 D: bluetooth-util.c: dbus: interface=org.freedesktop.DBus, path=/org/freedesktop/DBus, member=NameAcquired D: bluetooth-util.c: Bluetooth daemon is apparently not available. I: module.c: Loaded "module-bluetooth-discover" (index: #5; argument: ""). D: cli-command.c: Checking for existance of '/usr/lib/pulse-0.9.21/modules/module-esound-protocol-unix.so': success I: module.c: Loaded "module-esound-protocol-unix" (index: #6; argument: ""). I: module.c: Loaded "module-native-protocol-unix" (index: #7; argument: ""). D: cli-command.c: Checking for existance of '/usr/lib/pulse-0.9.21/modules/module-gconf.so': success I: module.c: Loaded "module-gconf" (index: #8; argument: ""). I: module-default-device-restore.c: Saved default sink 'auto_null' not existant, not restoring default sink setting. I: module-default-device-restore.c: Saved default source 'auto_null.monitor' not existant, not restoring default source setting. I: module.c: Loaded "module-default-device-restore" (index: #9; argument: ""). I: module.c: Loaded "module-rescue-streams" (index: #10; argument: ""). D: module-always-sink.c: Autoloading null-sink as no other sinks detected. I: sink.c: Created sink 0 "auto_null" with sample spec s16le 6ch 44100Hz and channel map front-left,front-left-of-center,front-center,front-right,front-right-of-center,rear-center I: sink.c: device.description = "Dummy Output" I: sink.c: device.class = "abstract" I: sink.c: device.icon_name = "audio-card" D: core-subscribe.c: Dropped redundant event due to change event. I: source.c: Created source 0 "auto_null.monitor" with sample spec s16le 6ch 44100Hz and channel map front-left,front-left-of-center,front-center,front-right,front-right-of-center,rear-center I: source.c: device.description = "Monitor of Dummy Output" I: source.c: device.class = "monitor" I: source.c: device.icon_name = "audio-input-microphone" D: module-null-sink.c: Thread starting up I: module.c: Loaded "module-null-sink" (index: #11; argument: "sink_name=auto_null sink_properties='device.description="Dummy Output"'"). I: module.c: Loaded "module-always-sink" (index: #12; argument: ""). I: module.c: Loaded "module-intended-roles" (index: #13; argument: ""). D: module-suspend-on-idle.c: Sink auto_null becomes idle, timeout in 5 seconds. I: module.c: Loaded "module-suspend-on-idle" (index: #14; argument: ""). I: client.c: Created 0 "ConsoleKit Session /org/freedesktop/ConsoleKit/Session1" D: module-console-kit.c: Added new session /org/freedesktop/ConsoleKit/Session1 I: module.c: Loaded "module-console-kit" (index: #15; argument: ""). I: module.c: Loaded "module-position-event-sounds" (index: #16; argument: ""). D: dbus-util.c: Successfully connected to D-Bus session bus efbffc6788fad56cfd64d40c00000018 as :1.182 D: main.c: Got org.pulseaudio.Server! I: main.c: Daemon startup complete. I: client.c: Created 1 "Native client (UNIX socket client)" I: client.c: Created 2 "Native client (UNIX socket client)" D: protocol-native.c: Protocol version: remote 16, local 16 I: protocol-native.c: Got credentials: uid=1000 gid=1000 success=1 D: protocol-native.c: SHM possible: yes D: protocol-native.c: Negotiated SHM: yes D: protocol-native.c: Protocol version: remote 16, local 16 I: protocol-native.c: Got credentials: uid=1000 gid=1000 success=1 D: protocol-native.c: SHM possible: yes D: protocol-native.c: Negotiated SHM: yes D: module-augment-properties.c: Looking for .desktop file for gnome-volume-control-applet D: module-augment-properties.c: Looking for .desktop file for gnome-settings-daemon D: core-subscribe.c: Dropped redundant event due to change event. I: module-suspend-on-idle.c: Sink auto_null idle for too long, suspending ... D: sink.c: Suspend cause of sink auto_null is 0x0004, suspending Note the one section that seems to find the hardware but says it's busy (no idea if this is relevant). D: cli-command.c: Checking for existance of '/usr/lib/pulse-0.9.21/modules/module-udev-detect.so': success D: module-udev-detect.c: /dev/snd/controlC0 is accessible: yes D: module-udev-detect.c: /devices/pci0000:00/0000:00:1b.0/sound/card0 is busy: yes I: module-udev-detect.c: Found 1 cards.

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• Fonts look bad in Microsoft Office using Wine

  - by amfcosta

  Office fonts in wine look very different from what they look in Windows or LibreOffice. As can be seen from the attached screenshots, they look blurry in some sizes and aliased in other sizes. You can see the differences not only in the document text but also in the ribbon menu. It happens with a lot of fonts. I'm testing it with Office 2010 now, but it also happens in Office 2007. Things I've tried: Changing fontsmooth settings with winetricks - made no difference. Copying fonts from a Windows system - made no difference. Using Ubuntu's fonts (by removing the Windows/Fonts from the wineprefix) - removed the blurriness in some fonts but increased aliasing. The three screenshots correspond to different "configurations": office_wine.png - Office Word in Wine using Wine's original fonts; office_nowinefonts.png - Office Word in Wine using Ubuntu's fonts; office_windows.png - Office Word in Windows. PS: please make sure to see the screenshots without scaling them to notice the problem. EDIT: A screenshot of how Calibri behaves in Wine here.

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• How to keep "dot files" under version control?

  - by andrewsomething

  Etckeeper is a great tool for keeping track of changes to your configuration files in /etc A few key things about it really stand out. It can be used with a wide variety of VCSs: git, mercurial, darcs, or bzr. It also does auto commits daily and whenever you install, remove or upgrade package. It also keeps track of file permissions and user/group ownership metadata. I would also like to keep my "dot files" in my home directory under version control as well, preferably bazaar. Does anyone know if a tool like etckeeper exists for this purpose? Worst case, I imagine that a simple cron job running bzr add && bzr ci once or twice a day along with adding ~/Documents, ~/Music, ect to the .bzrignore Anyone already doing something similar with a script? While I'd prefer bazaar, other options might be interesting.

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• Cannot install ubuntu on Asus UX51VZ

  - by Andrey Frunt

  I removed Win8, changed partition table from GPT to MBR and installed Win7. The problem is that I don't see the grub after I installed ubuntu and only win7 boots. Any ideas? I tried to reinstall all of listed above about 5 times but with no success :( I tried both 13.04 and 13.10 UPD: I also tried Boot-Repair and it installed the grub2 for me but unfortunately only with options to run ubuntu, so I repaired bootrecord using windows tools to have an ability to run to windows. Anyway I still cannot configure the dual boot. Please help :)

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• 12.10 x64 - RTL8188CE - Intermittent/Slow Internet Connection

  - by Nicholas Ryan Bowers

  I have to reset my internet connection often to get it to work. When it does work, it's definitely slower than when I'm on my Windows installation. My computer uses an RTL8188CE wireless card from Realtek. I'm running the 64-bit version of Ubuntu 12.10. Power management is not on. I've read on other sites that some people fixed the issue pertaining to this wireless card by downloading and installing the drivers from the Realtek site, but it seems as if that only helped people with 32-bit installations. Anyone have any luck with this specific wireless card?

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• Changing swappiness in sysctl.conf doesn't work for me

  - by Graham

  I'm using 12.04 LTS and can sudo sysctl to set swappiness to 10, but adding vm.swappiness=10 to sysctl.conf doesn't work for me - after I reboot, swappiness still reports 60 (default) I'd like to be able to reduce swaps to my SSD, but can't find a way to do so except manually per session. Modifying sysctl.conf seems to work for most - can anyone advise what I need to check / change to make it work for me too, please?

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• Hostapd - WLAN as AP

  - by BBK

  I'm trying to start hostapd but without success. I'm using Headless Ubuntu 11.10 oneiric 3.0.0-16-server x86_64. WLAN driver is rt2800usb and my wireless nic card TP-Link TL-WN727N supports AP mode as shows below: us0# ifconfig wlan0 wlan0 Link encap:Ethernet HWaddr 00:27:19:be:cd:b6 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) us0# lsusb Bus 003 Device 003: ID 148f:3070 Ralink Technology, Corp. RT2870/RT3070 Wireless Adapter us0# lshw -C network *-network:3 description: Wireless interface physical id: 4 bus info: usb@3:2 logical name: wlan0 serial: 00:27:19:be:cd:b6 capabilities: ethernet physical wireless configuration: broadcast=yes driver=rt2800usb driverversion=3.0.0-16-server firmware=0.29 link=no multicast=yes wireless=IEEE 802.11bgn us0# hostapd /etc/hostapd/hostapd.conf Configuration file: /etc/hostapd/hostapd.conf Could not read interface wlan0 # The int flags: No such device nl80211 driver initialization failed. ELOOP: remaining socket: sock=4 eloop_data=0xd3e4a0 user_data=0xd3ecc0 handler=0x433880 ELOOP: remaining socket: sock=6 eloop_data=0xd411f0 user_data=(nil) handler=0x43cc10 us0# cat /etc/hostapd/hostapd.conf ssid=Home interface=wlan0 # The interface name of the card #driver=rt2800usb driver=nl80211 macaddr_acl=0 ieee80211n=1 channel=1 hw_mode=g auth_algs=1 ignore_broadcast_ssid=0 wpa=2 wpa_passphrase=88888888 wpa_key_mgmt=WPA-PSK wpa_pairwise=TKIP rsn_pairwise=CCMP us0# iw list Wiphy phy0 Band 1: Capabilities: 0x172 HT20/HT40 Static SM Power Save RX Greenfield RX HT20 SGI RX HT40 SGI RX STBC 1-stream Max AMSDU length: 7935 bytes No DSSS/CCK HT40 Maximum RX AMPDU length 65535 bytes (exponent: 0x003) Minimum RX AMPDU time spacing: 2 usec (0x04) HT RX MCS rate indexes supported: 0-7, 32 TX unequal modulation not supported HT TX Max spatial streams: 1 HT TX MCS rate indexes supported may differ Frequencies: * 2412 MHz [1] (20.0 dBm) * 2417 MHz [2] (20.0 dBm) * 2422 MHz [3] (20.0 dBm) * 2427 MHz [4] (20.0 dBm) * 2432 MHz [5] (20.0 dBm) * 2437 MHz [6] (20.0 dBm) * 2442 MHz [7] (20.0 dBm) * 2447 MHz [8] (20.0 dBm) * 2452 MHz [9] (20.0 dBm) * 2457 MHz [10] (20.0 dBm) * 2462 MHz [11] (20.0 dBm) * 2467 MHz [12] (20.0 dBm) (passive scanning, no IBSS) * 2472 MHz [13] (20.0 dBm) (passive scanning, no IBSS) * 2484 MHz [14] (20.0 dBm) (passive scanning, no IBSS) Bitrates (non-HT): * 1.0 Mbps * 2.0 Mbps (short preamble supported) * 5.5 Mbps (short preamble supported) * 11.0 Mbps (short preamble supported) * 6.0 Mbps * 9.0 Mbps * 12.0 Mbps * 18.0 Mbps * 24.0 Mbps * 36.0 Mbps * 48.0 Mbps * 54.0 Mbps max # scan SSIDs: 4 Supported interface modes: * IBSS * managed * AP * AP/VLAN * WDS * monitor * mesh point Supported commands: * new_interface * set_interface * new_key * new_beacon * new_station * new_mpath * set_mesh_params * set_bss * authenticate * associate * deauthenticate * disassociate * join_ibss * Unknown command (68) * Unknown command (55) * Unknown command (57) * Unknown command (59) * Unknown command (67) * set_wiphy_netns * Unknown command (65) * Unknown command (66) * connect * disconnect The question is: Why the hostapd not starting?

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• How to remove individual Unity Webapps' items from message indicator?

  - by Danial Behzadi

  In first days of trying Ubuntu 12.10 I installed a bunch of unity webapps like Launchpad, Twitter, Facebook, LinkdIn, etc. Recently I found some of them useless and removed the related "unity-webapps-*" packages. They no longer appear in the Launcher and Every time I visit the main website in firefox, they offer to install the unity webapp for that specific website as well. But the problem is the items for them (LinkedIn, Twitter and Facebook) are placed in the message indicator yet after Thunderbird and Of course they don't indicate anything. How can I completely remove the webapps items from unity?

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• Crash Report in Ubuntu... hardware problem?

  - by Andrew

  Got this on my machine. I was just browsing the web on Chrome and my computer froze. I recently just built this machine. I have a feeling it is a hardware problem... Possibly one of my parts arrived broken in some way.... Starting anac(h)ronistic cron Stopping anac(h)ronistic cron Stopping cold plug devices Stopping log initial device creation Starting enable remaining boot-time encrypted block devices Starting configure network device security Starting configure virtual network devices Starting save udev log and update rules Stopping configure virtual network devices Stopping save udev log and update rules Checking battery state... Stopping System V runlevel compatibility Stopping enable remaining boot-time encrypted block devices Stopping Mount filesystems on boot 91.573384] BUG: unable to handle kernel NULL pointer dereference at (null) 91.573437] IP: [<ffffffff81313514>] strcmp+0x14/0x30 91.573470] PGD 1f7822067 PUD 1ed7a6067 PMD 0 91.573498] Oops: 0000 [#1] SMP 91.573519] CPU 3 91.573531] Modules linked in: dm_crypt bnep snd_hda_codec_realtek rfcomm bluetooth parport_pc ppdev arc4 fglrx(P) rt2800usb rt2800lib crc_ccitt rt2x00usb rt2x00lib mac0021 cfg80211 psmouse snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer send_seq_device snd joydev mac_hid mei(C) soundcore serio_raw snd_page_alloc lp parport ses enclosure usbhid hid i915 drm_kms_helper drm i2c_algo_bit mxm_umi tg_video wmi usb_storage 91.573826] 91.573837] Pid: 2297, comm: update-notifier Tainted: P C O 3.2.0-29-generic #46-Ubuntu To Be Filled By O.E.M. To Be Filled By O.E.M./Z77 Extreme4 91.573912] RIP: 0010:[<ffffffff81313514>] [<ffffffff81313514>] strcmp+0x14/0x30 91.573954] RSP: 0018:ffff8801f83f5bb8 EFLAGS: 00010246 91.573982] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 91.574019] RDX: 0000000000000069 RSI: 0000000000000000 RDI: ffff88021adb26f8 91.574056] RBP: ffff8801f83f5bb8 R08: ffff88022f2d6e80 R09: 0000000000000000 91.574093] R10: ffff88021e7dbf00 R11: 0000000000000003 R12: ffff88021c10eb40 91.574130] R13: 0000000000000000 R14: ffff88021adb26f8 R15: ffff8801f83f5d40 91.574168] FS: 00007f958cf53940(0000) GS:ffff88022f2c0000(0000) kn1GS:0000000000000000 91.574210] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 91.574240] CR2: 0000000000000000 CR3: 000000021f6d7000 CR4: 00000000000406e0 91.574277] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 91.574314] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000000 91.574351] Process update-notifier (pid: 2297, threadinfo ffff801f83f4000, task ffff880208fe2e00) 91.574397] Stack: 91.574409] ffff8801f83f5be8 ffffffff811ed509 ffff88021adb26c0 ffff88021b8b7020 91.574453] ffff88021b461c60 fffffffffffffffe ffff8801f83f5c18 ffffffff811ed61f 91.574496] ffff88021adb26c0 ffff88021b8b7020 ffff8801f83f5dc8 0000000000000001 91.574539] Call Trace: 91.574558] [<ffffffff811ed509] sysfs_find_dirent+0x59/0x110 91.574591] [<ffffffff811ed61f] sysfs_lookup+0x5f/0x110 91.574621] [<ffffffff81182745] d_alloc_and_lookup+0x45/0x90 91.574654] [<ffffffff8118fe65] ? d_lookup+0x35/0x60 91.574683] [<ffffffff811848d2] do_lookup+0x202/0x310 91.574712] [<ffffffff8118660c] path_lookupat+0x11c/0x750 91.574744] [<ffffffff81318db7] ? __strncpy_from_user+0x27/0x60 91.574778] [<ffffffff81186c71] do_path_lookup+0x31/0xc0 91.574809] [<ffffffff81187779] user_path_at_empty+0x59/0xa0 91.574842] [<ffffffff81187822] ? do_filp_open+0x42/0xa0 91.574872] [<ffffffff811877d1] user_path_at+0x11/0x20 91.574902] [<ffffffff8117c80a] vfs_fstatat+0x3a/0x70 91.574933] [<ffffffff81161cff] ? kmem_cache_free+0x2f/0x110 91.574965] [<ffffffff8117c85e] vfs_lstat+-x31/0x70 91.574993] [<ffffffff8117c9fa] sys_newlstat+0x1a/0x40 91.575022] [<ffffffff81176ee1] ? do_sys_open+0x171/0x220 91.575053] [<ffffffff8117cb1a] ? sys_readlinkat+0x7a/0xb0 91.575086] [<ffffffff81661ec2] system_call_fastpath+0x16/0x1b 91.575118] Code: 83 c1 01 40 84 ff 75 ef 5d c3 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 00 55 31 c0 48 89 e5 66 2e 0f 1f 84 00 00 00 00 00 0f b6 14 07 <3a> 14 06 75 0f 48 83 c0 01 84 d2 75 ef 31 c0 5d c3 0f 1f 00 19 91.577243] RIP [<ffffffff81313514>] strcmp+0x14/0x30 91.579314] RSP <ffff8801f83f5bb8> 91.581385] CR2: 0000000000000000

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• Log in manager doesn't appear after editing /etc/X11/default-display-manager

  - by hamed

  I have ubuntu 11.10 , and I installed kde and I choosed kdm mistakly, as mentioned here I did this procedure Pretty simple. Open the file /etc/X11/default-display-manager with your editor of choice. Make sure you invoke that editor as root, otherwise it won't work. In that file there's a single line: /usr/bin/kdm Change that to /usr/bin/gdm and save the file. Reboot and you're in Gnome. now ,after booting, the log in manager gdm or kdm didn't appear . how can I fix this?

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• unity, seeing all instances of same open application windows on all virtual desktop

  - by Nasser M. Abbasi

  I noticed this strange issue with unity. I am using 12.04. The desktop has 4 virtual desktops, which I can switch between using the 'workspace switcher' which is very nice. But I noticed the following: When I have 2 instances of the same app (say 2 different firefox windows, or 2 different terminal windows), in 2 different virtual desktops, then I click on the icon for that application located on the launcher panel (the left long strip with icons on it), then I see the application comes into focus. Then when I click again right away (on the same icon on the launcher), then now all instances of this application that are open come into ONE view (may be on was on desktop 1, and the other was on desktop 3 for example) and then I can now click on the one instance window that I want to select to use. This is all very nice actually. But this does NOT work for all applications! I just tried it, and it worked for firefox, and for gedit and for the gnome terminal. I have one firefox window open in virtual desktop 1, and another window open in virtual desktop 2. I clicked once on the firefox icon, then again, and both windows came into the main desktop and I was able to select which one to use. When I tried the same thing on dolphin file manager, which I also had 2 windows (instances) of it open in 2 different virtual desktops, this behavior did not happen. I clicked again, and nothing happened. Only one remained in focus. So I had to fo look for the second dolphin window the hard way. It looks like some apps are supported by this feature and some are not. How does one make it so that all applications are supported like this? This is a very handy feature. Is it a configuration item somewhere? thanks

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• Saucy upgrade causes menu problem in Eclipse

  - by Ralph Rassweiler

  Has anyone been through this: Using Ubuntu 13.10 (with JDK 1.7.0_45). Download and uncompress Eclipse Kepler for Java EE Developers. The software menus are messed up. I didn't notice similar problems in other software. When I click any menu of eclipse, the drop-down seems to be "cut". Sometimes the drop-down shows, but the options are invisible. I tried Eclipse Indigo, but the same problem occurs.

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• Use gnome custom themes appearance in KDE?

  - by piedro

  Is there a way to get the colors of a gnome custom theme to KDE without matching every single setting manually? (Theres tons of different color settings in the KDE color schemes, most of which I even don't know where they are applied ... I use KDE with compiz to run emerald as windows decorator. Because I really like the "Elementary"-theme. Because my eyes aren't that great I had to tweak the gtk-elementary theme for some additional contrast. I saved it as "elementary-piedro". Now I want to choose this theme in KDE-Systemsettings/appearance/gtk-applications but it doesnt't show the tweaked version? Where is it saved by the normal "gnome appearance preferences"-utility? Is there a way to use the tweaked settings for KDE-applications?

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• How do I add a network printer in Ubuntu 12.04?

  - by Ricky Robinson

  I know the name and the IP address of a network printer, but I can't seem to be able to search by IP address or name. Ubuntu developers love to move things around to make it difficult for users, so now with Ubuntu 12.04 I can only go on Application -> System Tools -> System Settings -> Printers, click on Network and a list of printers appears. Too bad the one I want to add isn't there. How do I do it? Here it suggests System -> Administration -> Printing, which simply doesn't exist.

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• Having trouble installing guest additions for a Xubuntu 13.10 guest OS in Virtualbox 4.2.10

  - by Duval Pearson III

  I am using Ubuntu 13.04 64-BIT as my host operating system running Virtual Box 4.2.10. I get this message when I tell virtualbox to install guest additions(CTRL+D),mounting the volume in the guest OS and run the VBoxLinuxAdditions.run file using root by: sudo ./VBoxLinuxAdditions.run It starts and then comes to these error messages: Verifying archive integrity... All good. Uncompressing VirtualBox 4.2.10 Guest Additions for Linux.......... VirtualBox Guest Additions installer Removing existing VirtualBox non-DKMS kernel modules ...done. Building the VirtualBox Guest Additions kernel modules The headers for the current running kernel were not found. If the following module compilation fails then this could be the reason. Building the main Guest Additions module ...done. Building the shared folder support module ...fail! (Look at /var/log/vboxadd-install.log to find out what went wrong) Doing non-kernel setup of the Guest Additions ...done. Installing the Window System drivers Warning: unknown version of the X Window System installed. Not installing X Window System drivers. Installing modules ...done. Installing graphics libraries and desktop services components ...done. allusers@allusers-VirtualBox:/media/allusers/VBOXADDITIONS_4.2.10_84104$ I followed everything from the official VirtualBox manual on installing guest additions for linux I used some other commands such as: sudo apt-get install build-essential linux-headers-$(uname -r) dkms and: sudo apt-get install virtualbox-guest-x11 I rebooted after executing those command and it still wont work. It still says the kernel modules are missing and the window is not seamless. Any idea what could be the problem?

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• Missed environment variables in Eclipse Juno

  - by hara

  I recently moved from Eclipse Indigo to Juno. I installed the IDE in my Ubuntu 12.04 by downloading the archive from here. Then I created an entry in the unity launcher for Juno as I done before for Indigo. Here is what I wrote in ~/.local/share/applications/eclipse-juno.desktop: [Desktop Entry] Type=Application Name=Eclipse Juno Comment=Eclipse Integrated Developmentm Environment Icon=~/.eclipse-juno/icon.xpm Exec=~/.eclipse-juno/eclipse -vmargs -Duser.name="my name" Terminal=false Categories=Development;IDE;Java; When I run eclipse from the unity launcher, eclipse does not see environment variables that I set in ~/.bascrc. Instead, if I run eclipse from shell, it can see all the env variables. How can I fix the problem? Thanks a lot.

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• Need database selection advise

  - by jacknad

  I know this is considered a bad question since there is no correct answer, but I need to decide on a database for embedded linux (DaVinci 368 based) hardware and I've never had to produce a design with a database before. Each record will probably contain less than 1000 images with associated alpha-numeric data and the mass storage will be some kind of flash drive. Only one user needs access to the data at a time. MySQL claims to be "The world's most popular open source database" but SQLite claims to be "the most widely deployed SQL database engine in the world." Perhaps there is another that is also the best in the world? Which is easiest to use for a database newbie? Should I just flip a coin? Does it really matter which one I pick? Do I even need to use a database software package or should I roll my own? I won't need bells and whistles like sorting, but I'll probably need to delete the oldest records to make room for new ones if the storage fills up.

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