Thanks Luke. Yes, I installed alsa from Ubuntu Audio Dev PPA when my sound disappear and it was OK until new Ubuntu update. I solved it in this way:
sudo apt-get purge linux-sound-base alsa-base alsa-utils sudo apt-get install linux-sound-base alsa-base alsa-utils Christian 2010/9/20 Luke Yelavich <[email protected]> > It seems you have updated your alsa drivers from somewhere. If you > manually compiled the alsa drivers, then I suggest you re-install your > kernel to replace the drivers with the drivers from the latest lucid > kernel, i.e re-install the package linux-image-2.6.32-24-generic. If you > installed updated alsa drivers from the Ubuntu Audio Dev PPA > https://launchpad.net/~ubuntu-audio-dev/+archive<https://launchpad.net/%7Eubuntu-audio-dev/+archive>, > then I suggest you > uninstall this package, to determine whether sound works again. The > package you want to uninstall is linux-alsa-driver- > modules-2.6.32-24-generic. > > Either way, once you remove the package or re-install the kernel, please > run the following command in a terminal: apport-collect -p alsa-base > > https://bugs.launchpad.net/bugs/643964/+attachment/1615804/+files/CurrentDmesg.txt > > Please report back as to whether this helps. > > affects ubuntu/alsa-driver > status incomplete > > > ** Changed in: alsa-driver (Ubuntu) > Status: New => Incomplete > > -- > Soundcard not detected > https://bugs.launchpad.net/bugs/643964 > You received this bug notification because you are a direct subscriber > of the bug. > > Status in “alsa-driver” package in Ubuntu: Incomplete > > Bug description: > After update (yesterday) suddenly Lucid 10.04.1 LTS not recognize the sound > card. > cat /proc/asound/modules return nothing. > aplay -l return "no sound card detected..." or something like this > cat /proc/asount/version return: > Advanced Linux Sound Architecture Driver Version 1.0.23. > Compiled on Sep 19 2010 for kernel 2.6.32-24-generic (SMP) > lspci | grep -i audio return: > 00:05.0 Audio device: nVidia Corporation MCP61 High Definition Audio (rev > a2) > 01:0a.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture > (rev 11) > > ProblemType: Bug > DistroRelease: Ubuntu 10.04 > Package: alsa-base 1.0.22.1+dfsg-0ubuntu3 > ProcVersionSignature: Ubuntu 2.6.32-24.43-generic 2.6.32.15+drm33.5 > Uname: Linux 2.6.32-24-generic x86_64 > NonfreeKernelModules: nvidia > AlsaDevices: > total 0 > crw-rw----+ 1 root audio 116, 3 2010-09-20 19:56 seq > crw-rw----+ 1 root audio 116, 2 2010-09-20 19:56 timer > AlsaVersion: > Advanced Linux Sound Architecture Driver Version 1.0.23. > Compiled on Sep 19 2010 for kernel 2.6.32-24-generic (SMP). > AplayDevices: aplay: device_list:223: no soundcards found... > Architecture: amd64 > ArecordDevices: arecord: device_list:223: no soundcards found... > AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', > '/dev/snd/timer', '/dev/sequencer2', '/dev/sequencer'] failed with exit code > 1: > Date: Mon Sep 20 20:05:25 2010 > InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429) > PackageArchitecture: all > ProcEnviron: > LANG=es_AR.utf8 > SHELL=/bin/bash > SourcePackage: alsa-driver > Symptom: audio > Title: Soundcard not detected > dmi.bios.date: 02/05/2009 > dmi.bios.vendor: American Megatrends Inc. > dmi.bios.version: P1.50 > dmi.board.name: N61P-S > dmi.board.vendor: ASRock > dmi.chassis.asset.tag: To Be Filled By O.E.M. > dmi.chassis.type: 3 > dmi.chassis.vendor: To Be Filled By O.E.M. > dmi.chassis.version: To Be Filled By O.E.M. > dmi.modalias: > dmi:bvnAmericanMegatrendsInc.:bvrP1.50:bd02/05/2009:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnN61P-S:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: > dmi.product.name: To Be Filled By O.E.M. > dmi.product.version: To Be Filled By O.E.M. > dmi.sys.vendor: To Be Filled By O.E.M. > > To unsubscribe from this bug, go to: > > https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/643964/+subscribe > -- Soundcard not detected https://bugs.launchpad.net/bugs/643964 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
