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• How to reduce fan noise with some latest Dell laptops, Desktop PC's?

  - by YumYumYum

  I have a few new Dell laptops and desktop PC's. Some of them have extremely noisy fans. The technicians who are sent by Dell refuse to attempt to fix things when they see that the OS is Ubuntu. They seem to be comfortable dealing with machines running MS Windows. For Linux, is there any way to slow or lower the fan speed? Please can anyone advise how it should be done. I have tried lm_sensors but failed.

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• Asterisk not playing custom sounds on Ubuntu Server 11.04

  - by jochy2525

  I've installed Asterisk on my Ubuntu Server, all works fine, excepts playing the custom sounds. Asterisk sounds work, but this file I've uploaded does not play (on other servers it works, it is a .WAV PCM 16bit 8000). Here is some log output: [Feb 6 22:55:45] WARNING[11045] file.c: File custom/sohoitsoluciones does not exist in any format [Feb 6 22:55:45] WARNING[11045] file.c: Unable to open custom/sohoitsoluciones (format 0x4 (ulaw)): No such file or directory [Feb 6 22:55:45] WARNING[11045] app_playback.c: ast_streamfile failed on SIP/Out4903-0000001d for custom/sohoitsoluciones How can I get Asterisk to play a custom sound?

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• Netbeans IDE did work after installation, but doesn't start after restart.

  - by ubuntumazze

  i installed Netbeans on Ubuntu 11.10 following these instructions: http://pasindudps.blogspot.com/2011/10/installing-netbeans-ide-in-ubuntu-1110.html. It worked perfectly fine (creating projects, open projects, compile, run...) but after restarting netbeans started normally and it is shown as a running application in unity-panel but I can't access the programm. I uninstalled and reinstalled it, it worked once but failed after restart. Has anyone an idea what might be the problem here? Thanks in advance. Regards

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• Cannot install build essential from the CD?

  - by munir

  After a fresh installation of Ubuntu 10.10 I tried to install build-essential from the Ubuntu installation CD. I put the cd in the cdrom and in the software repositories i checked the box install from cd(Ubuntu 10.10 release Maverick Meerkat). Then I reloaded the software repositories. The synaptic manager then tried to download some repository related files but failed to do so as i didn't have internet connection. Then I open a terminal and wrote sudo apt-get install build-essential. It prompted me if I want to install build essential y/N. I typed y but the terminal showed some errors and was not installed. I also tried to add the CD in the software repositories. I clicked add and it prompted me to insert a CD while the CD was still inside the cdrom. I clicked "ok" then and it showed it could not find any cd. What is wrong?

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• Unable to Install Guard

  - by Dillmo

  I've seen Guard and it's usefulness in web development and would like to install it. Naturally, I expected to be able to use sudo gem install guard to do so (yes, it is a Ruby Gem). However the installation errors out. Here is what I'm getting: Building native extensions. This could take a while... ERROR: Error installing guard: ERROR: Failed to build gem native extension. /usr/bin/ruby1.9.1 extconf.rb /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mkmf (LoadError) from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require' from extconf.rb:4:in `<main>' Gem files will remain installed in /var/lib/gems/1.9.1/gems/ffi-1.9.3 for inspection. Results logged to /var/lib/gems/1.9.1/gems/ffi-1.9.3/ext/ffi_c/gem_make.out Does anyone know how I can fix this? Thanks for any help.

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• Record and display Kinect audio and video via avconv

  - by ThomasH

  I'm trying to record audio and video from a Kinect using avconv but I seem to have trouble specifying the right options. avconv -f video4linux2 -video_size 640x480 -c:v h264 -c:a ac3 -i /dev/video1 test.mp4 results in: avconv: /build/buildd/libav-extra-0.8.3ubuntu0.12.04.1/libav/libavutil/mathematics.c:79: av_rescale_rnd: Assertion `c > 0' failed. Aborted (core dumped) Cheese is perfectly happy recording the audio and video from the Kinect, so it's not a setup issue. For added fun, I also need to display the video at the same time.

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• JavaFX 2.1.1 Documentation

  - by NancyH

  JavaFX 2.1.1 released on June 12, and few documents were updated on the docs.oracle.com/javafx website. Besides a new set of release documentation, the Concurrency in JavaFX article was updated with a discussion of how to cancel a task, with a code sample to illustrate that. A new section describes the WorkerStateEvent class and how to use the convenience methods such as cancelled, failed, running, scheduled, and succeeded, which are invoked when the Worker implementation state changes. Other documents were updated to reflect minor bug fixes, many of them contributed by JavaFX readers using the feedback alias in the sidebar of all of our documentation. Yes, we do respond and pay attention to what you say and at least try to point you in the right direction if we can't solve a problem you're having with a tutorial. We appreciate your feedback!

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• HIB Games (Aquaria & Penumbra) cannot find libGL.so.1 even though it exists

  - by aberration

  I'm try to play some Humble Indie Bundle (HIB) games, but I'm getting errors with Aquaria and Penumbra: Overture that are related to the libGL.so.1 file. Aquaria gives this error on launch: Message: SDL_GL_LoadLibrary Error: Failed loading libGL.so.1 And Penumbra: Overture gives this error on launch: ./penumbra.bin: error while loading shared libraries: libGL.so.1: cannot open shared object file: No such file or directory I know that the file libGL.so.1 does exist (in /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1). From past errors like this, I'm guessing that you need to symlink the library to another directory, but I can't figure out which one.

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• My laptop overheat on ubuntu 13.04

  - by Sina

  Overheating maybe is exaggerating word, but it's temperature is more in comparison with windows. My Graphic Card has failed for 2 time and I've paid money for each time. The problem makes me disappointed of keeping on ubuntu. Whenever I want to install "nvidia-current" my resolution becomes too low in screen and sometimes it just shows a dark screen. Is there any other Linux distribution which be more compatible with Hardware, specially Graphic Card? My Laptop is Dell Vostro 1510. And once This problem happened in 12.04 and another time days ago :(

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• it started with a broken package

  - by Inteloidl.com

  all started when i tried to updated to the latest lts, but the problen is that the update interumpted and some broken packages apeared, i used synaptics to repair, but it wont repair, iv tried some console from some forum topic ... and in the end when i try to open synaptic or update managre this is what apears any ideas : E: Dynamic MMap ran out of room. Please increase the size of APT::Cache-Limit. Current value: 25165824. (man 5 apt.conf) E: Error occurred while processing mantis (NewVersion1) E: Problem with MergeList /var/lib/apt/lists/c.archive.ubuntu.com_ubuntu_dists_lucid_universe_binary-i386_Packages E: The package lists or status file could not be parsed or opened. E: _cache-open() failed, please report. W: Unable to munmap

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• How to detect GLSL warnings?

  - by msell

  After compiling a shader with glCompileShader, I can call glGetShaderiv with GL_COMPILE_STATUS to check if the shader compiled successfully. I can also call glGetShaderInfoLog to get information about possible errors, warnings or other info. The information log returned by this function is unspecified. In a tool where users can write their own shaders, I would like to print all errors and warnings from the compilation, but nothing if no warnings or errors were found. The problem is that the GL_COMPILE_STATUS returns only false if the compilation failed and true otherwise. If no problems were found, some drivers return empty info log from glGetShaderInfoLog, but some drivers can return something else such as "No errors.", which I do not want to print to the user. How is this problem generally solved?

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• Unable to Restore Nexus 7 2013

  - by belkinsa

  I have a Nexus 7 2013 with FLO-04.01 bootloader and I tired ./flash-all.sh and it fails. Happens every time. Output below: svetlana@svetlana-TECRA-M5:~/Downloads/razor-krt16s$ sudo ./flash-all.sh [sudo] password for svetlana: < waiting for device > sending 'bootloader' (3911 KB)... OKAY [ 0.163s] writing 'bootloader'... OKAY [ 1.446s] finished. total time: 1.609s rebooting into bootloader... OKAY [ 0.006s] finished. total time: 0.006s archive does not contain 'boot.sig' archive does not contain 'recovery.sig' failed to allocate 721539744 bytes error: update package missing system.img svetlana@svetlana-TECRA-M5:~/Downloads/razor-krt16s$

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• Lubuntu 14.04 Problem starting lxsession-default-apps

  - by user278179

  I have one problem, I can't execute lxsession-default-apps on Lubuntu 14.04 because I get because said to me "The database is updating, please wait" If I try to run lxsession-default-apps, I get this error: ** Message: utils.vala:30: config_path_directory: /home/USER/.config/lxsession-default-apps ** Message: desktop-files-backend.vala:171: test config_path: /home/USER/.config/lxsession-default-apps/settings.conf ** Message: desktop-files-backend.vala:237: Scanning folder: /usr/share/applications ** Message: desktop-files-backend.vala:278: Start scanning ** Message: desktop-files-backend.vala:257: Scanning folder: /usr/share/app-install/desktop ** Message: desktop-files-backend.vala:278: Start scanning Error: list_files failed: No such file or directory ** Message: desktop-files-backend.vala:333: Finishing scanning ** Message: desktop-files-backend.vala:189: Signal finish scanning with mode: write ** Message: desktop-files-backend.vala:333: Finishing scanning Any help would be appreciated. Thanks. Regards.

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• how to use string::find to look for a word rather each character seperately

  - by RubyKing

  Hello how would I look through a string for a word rather then each character in that word. I have my code here and it always seems to find everything that is .obj even if its o or b or j or "." is there anyway to get passed this here is my code? I checked the docuementation here link but nothing returned any results I craved so hard string &str = *it; if(it->find(".obj")) { cout << "Found .Obj" << endl; } I also tried to use string::compare but that failed :(

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• Can't login to Ubuntu One

  - by Gabriel

  I uninstalled Ubuntu One about two months ago and now I re-installed it. I can still login with my account through the site (Ubuntu One) but the client keeps telling me "The authentication failed". If I try to use the Recover password option it also fails with telling me that my email address is not recognized (while I can use it with zero issues through the site) If I attempt to create a new account from the client, it also fails to load the captcha every time. Something is clearly broken here but I can't figure out what it is. Any ideas?

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• Cannot connect to ethernet port

  - by Jnir

  I'm running Ubuntu 12.04 LTE. I'm trying to connect via ethernet for the first time but have had no success. Ifconfig eth0 returns: eth0 Link encap:Ethernet HWaddr: 00:01:2e:3f:f1:a0 inet6 addr: fe80::201:2eff:fe3f:f1a0 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:68 errors:0 dropped:0 overruns:0 frame:0 TX packets:183 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:8374 (8.3 KB) TX bytes:42944 (42.9KB) Interrupt:16 Base address:0x6c00 /etc/network/interfaces has auto lo iface lo inef loopback auto eth0 iface eth0 inet dhcp sudo /etc/init.d/networking prints: * Running /etc/init.d/networking restart is deprecated because it may not enable again some interfaces * Reconfiguring network interfaces... Failed to bring up eth0 [OK]

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• Installling a brother printer in Ubuntu 12.04 (MFCJ6510DW)

  - by Gelterfinger

  I am trying to install a Brother MfCJ6510DW printer on Ubuntu 12.04. I have tried various ways, but nothing woks for me. I have downloaded the drivers from the solutions brother.com I tried to install from the "System setting- printing" on the pull-down menu. There I get the message "failed to read PPL file - it says something about a missing Asterisk in colum1 Line 1 In the terminal I get the message cannot find file or directory. Under localhost:631/printer, I get the message " no such file or directory" I tried to install the file I downloaded from the Brothers Solution Center on the Ubuntu Software Centre, there I get the message " The package is of bad quality" Help I downloaded Mfcj6510dwlpr-3.0.0-1.i386.deb and mfcj6510dwcupswrapper-3.0.0-1.i386 I also downloaded linux-bprinter-installer-1.0.0-1.gz, but this does not help either.

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• Why Firefox caching work will reset in version 3 but version 16 don't?

  - by huahsin68

  I am developing a web application and have the app deployed into Tomcat server. Tested on IE and Firefox and are working fine. Meaning when I close the browser and reopen the app, the data will be reset. When deploy to Websphere, the data is reset only in IE but Firefox don't. Meaning Firefox will cache the old data. I did try to clear the cache in FF but still failed. I did a test in FF3 and FF16, FF3 will reset the value but FF16 doesn't, I am just so curious why this could happened? Now I don't know whether this is my code problem or is actually the FF caching problem. Any clue on this?

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• Launchpad fails to build a package for my PPA

  - by AZorin

  I'm trying to build a package on Launchpad's Debian build system for PPAs but I'm having some issues with a certain package. The package I'm trying to build (zorin-xwinwrap) contains a source C file which I'm trying to get to compile and build on Launchpad's server so that it would install and work on 32 bit (i386) and 64 bit (amd64) systems. Unfortunately I keep on getting an Error code 2 with the debian/rules file and I have no clue how to fix this issue. The following link is the source package of the software I'm trying to add to my PPA: http://goo.gl/GjZvd The following link is the buildlog for the failed package on Launchpad: http://goo.gl/6A2rQ I would greatly appreciate any suggestions if anyone may have any. Thank you for your time.

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• How to setup a wifi ap hotspot with ipv6 support?

  - by keyman

  How to setup a wifi ap (access point mode) hotspot, with IPv6 support? I've set up a hotspot according to the guide to wifi ap hotspot setup and it works fine. But via the hotspot I failed to visit IPv6 websites. How can I setup a hotspot able to share Ipv6 Internet access? Thanks! Further: Actually I've tried to setup IPv6 forwarding and masquerading. First enabling IPv6 forwarding: echo 1 | sudo tee net/ipv6/conf/default/forwarding Then I tried to execute: sudo ip6tables -t nat -A POSTROUTING -s 2001:db8:0:1::/64 -o eth0 -j MASQUERADE But it gave me an error: ip6tables v1.4.12: Couldn't load target `MASQUERADE':No such file or directory I searched through the Internet but I get confused. So I'm here for help. Thanks!

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• Using Ubuntu to recover data from a crashed Windows install

  - by user289391

  I was using Windows on my laptop when suddenly the blue screen of death appeared and then laptop restarted and wrote for me this : Intel UNDI, PXE-2.1 (built 083) Copyright (C) 1997-200 Intel Corporation This Product is covered by one or more of the following patents: US5,307459, US5,434,872, US5732,094, US6579,884, US6115,776 and US6,327,625 Realtek PCIe FE Family Controller Series v120 (01/26/10) PXE-M0F: ExitingPXEROM. reboot failed I have Ubuntu on an external disk so I have now booted to that. Two questions: Any theories on what happened? How can I use Ubuntu to recovers my data from Windows install?

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• Newly compiled (patched with -ck) 3.3 kernel won't boot up

  - by Shiki

  Screen is garbled. Reaaaally garbled. Like some sort of scrambling image from a movie. I can upload some pictures if needed. To be short with the description. Here is my 3.3 + ck .config file: http://pastebin.com/aP2F9RcH The dmesg log of the failed kernel: http://pastebin.com/esc2Rtka The computer is a ThinkPad T500 laptop. I have selected everything needed for the computer (as far as I can tell, but check the .config). The normal generic Ubuntu kernel boots and works perfect!

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• Can't access my partitions after installing Ubuntu

  - by Manaf Al-Sarraf

  I installed Ubuntu 13.4 replace with win 8 after installation complete I can't access my partitions and receive a message like this : Error mounting /dev/sda5 at /media/manaf/01CD6C0800CEE670: Command-line `mount -t "ntfs" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,dmask=0077,fmask=0177" "/dev/sda5" "/media/manaf/01CD6C0800CEE670"' exited with non-zero exit status 14: The disk contains an unclean file system (0, 0). Metadata kept in Windows cache, refused to mount. Failed to mount '/dev/sda5': Operation not permitted The NTFS partition is in an unsafe state. Please resume and shutdown Windows fully (no hibernation or fast restarting), or mount the volume read-only with the 'ro' mount option." Thanks for helping :)

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• Apt Configuration problem

  - by Paul

  I am trying to load v11.04 onto my HP desktop hard drive using a USB drive. I used the same USB drive to load the system on my Dell netbook and it loaded successfully. But trying to load on the desktop I get the error " Apt configuration problem. An attempt to configure apt to install additional packages from the CD failed" The installer then crashes. I have nothing in the CD drive. I can boot the system from the USB drive and it works fine. I have tried all options on the load with the same crash each time. I baffled as I successfully loaded my netbook with the same USB with no problems.

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• ISO Live Session from an External Hard Drive?

  - by amemus

  Is it possible to use an external hard drive to start a live Ubuntu session? Is having an ISO file as the whole content of the first partition of the device enough? Thank you for reading...! EDIT upon reading the first comment to my original question: If I remember correctly, I COULD run a live session of Oneiric Ocelot somehow. It was not from a CD because I failed to burn one, so it must have been from an ISO file. Still very very confused....

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