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I have a Dell Optiplex 780 running Ubuntu 11.10. Recently I had to hard reset that PC. After that restart, my audio device was no longer detected. Previously, audio had worked fine. The audio/speaker icon in the right hand corner cannot change volume as no audio device is detected.
The sound card is provided by the on-board Intel ICH-10 chipset.
lspci gives:
00:1b.0 Audio device: Intel Corporation 82801JD/DO (ICH10 Family) HD Audio Controller (rev 02)
I tried logging in to both my own user account, as well as root. No audio device is detected. What are my options to troubleshoot this problem?
goldenmean
Posted 2013-03-07T20:42:46.073
Reputation: 2 087
You could try "lspci" in the terminal emulator and look for anything listed as "audio" to determine your soundcard type. – washbow – 2013-03-07T21:00:16.587
@washbow thanks. Will do it and let know. Any further pointers. – goldenmean – 2013-03-07T22:06:08.123
lspci -v listed the sound card as : 00:1b.0 Audio device: Intel Corporation 82801JD/DO (ICH10 Family) HD Audio Controller (rev 02) Does this mean, its the driver which could be unloaded for some reason. Now which is the driver snd or alsa ? – goldenmean – 2013-03-08T09:51:56.543
please post the output of "dpkg -l | grep alsa". Did you run an update just before you lost sound? – washbow – 2013-03-08T18:52:23.663
also does "lspci -v" give details of the kernel modules in use? – washbow – 2013-03-08T19:03:08.393
@washbow Looking lspci -v for modules it says: "Kernel driver in use: HDA Intel Kernel modules: snd-hda-intel" – goldenmean – 2013-03-12T17:21:28.580
just clutching at straws but try "sudo alsa force-reload" – washbow – 2013-03-12T21:47:29.597