if it is still working, get a snapshot of the lsof output. (this will show all the devices it opened, eg:
lsof |grep snd pulseaudi 4379 tthtlc mem CHR 116,6 6857 /dev/snd/pcmC0D0p pulseaudi 4379 tthtlc mem REG 8,2 362800 10148 /usr/lib/libsndfile.so.1.0.17 pulseaudi 4379 tthtlc 22u CHR 116,8 6820 /dev/snd/controlC0 pulseaudi 4379 tthtlc 29u CHR 116,8 6820 /dev/snd/controlC0 pulseaudi 4379 tthtlc 32u CHR 116,8 6820 /dev/snd/controlC0 pulseaudi 4379 tthtlc 35u CHR 116,6 6857 /dev/snd/pcmC0D0p gconf-hel 4380 tthtlc mem REG 8,2 362800 10148 /usr/lib/libsndfile.so.1.0.17 mixer_app 4476 tthtlc 21u CHR 116,8 6820 /dev/snd/controlC0 and then perhaps compare the output with that when the sound is no longer audible. I suspect some hanging process, opening the drivers, and never closed it properly. A reboot is often needed (for me at least, after combining bristol + rosegarden + totem usages in different order). On Fri, Jul 2, 2010 at 5:08 AM, Tenoch <mignonmexic...@aol.com> wrote: > I have noticed that sometimes the sound works, but after a few minutes > it just stops working. The info below is after the sound stopped > working. The command alsamixer actually gave me a menu to change the > settings of my sound card, but this is not always the case because when > i turn on the computer and there is no sound from the beginning of the > session if i try alsamixer it says no such file or directory. > > erne...@ernesto-laptop:~$ lsmod | grep snd > snd_hda_codec_conexant 22641 1 > snd_hda_intel 21941 2 > snd_hda_codec 74201 2 snd_hda_codec_conexant,snd_hda_intel > snd_hwdep 5412 1 snd_hda_codec > snd_pcm_oss 35308 0 > snd_mixer_oss 13746 1 snd_pcm_oss > snd_pcm 70662 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss > snd_seq_dummy 1338 0 > snd_seq_oss 26726 0 > snd_seq_midi 4557 0 > snd_rawmidi 19056 1 snd_seq_midi > snd_seq_midi_event 6003 2 snd_seq_oss,snd_seq_midi > snd_seq 47263 6 > snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event > snd_timer 19098 2 snd_pcm,snd_seq > snd_seq_device 5700 5 > snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq > snd 54148 16 > snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device > soundcore 6620 1 snd > snd_page_alloc 7076 2 snd_hda_intel,snd_pcm > > -- > Sound just stopped working completely. It used to work before. > https://bugs.launchpad.net/bugs/600041 > You received this bug notification because you are a member of Ubuntu > Audio Team, which is subscribed to alsa-driver in ubuntu. > > Status in “alsa-driver” package in Ubuntu: New > > Bug description: > It started gradually because the sound would stop working and after a reboot > it would work again, today it just wont work at all even after the reboot. > > ProblemType: Bug > DistroRelease: Ubuntu 10.04 > Package: alsa-base 1.0.22.1+dfsg-0ubuntu3 > ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2 > Uname: Linux 2.6.32-22-generic i686 > NonfreeKernelModules: nvidia > AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code > 2: ls: cannot access /dev/snd/: No such file or directory > AplayDevices: aplay: device_list:223: no soundcards found... > Architecture: i386 > ArecordDevices: arecord: device_list:223: no soundcards found... > CheckboxSubmission: 71f1eefe8b8b0a79087ed60434917a6b > CheckboxSystem: e704f33cc0866ff0f0256a33de39ea1c > Date: Tue Jun 29 21:18:53 2010 > EcryptfsInUse: Yes > InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5) > PackageArchitecture: all > PciMultimedia: > > ProcEnviron: > LANG=en_US.utf8 > SHELL=/bin/bash > SourcePackage: alsa-driver > > > -- Regards, Peter Teoh -- Sound just stopped working completely. It used to work before. https://bugs.launchpad.net/bugs/600041 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
