Darxus

No sound with an Intel 82801DB-ICH4 sound card, Ubuntu.

No sound with an Intel 82801DB-ICH4 sound card, Ubuntu.

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2009-09-29
If you're not getting sound, this is a BUG, file a bug report. And you probably have a Sony Vaio.

An example bug for this problem: https://bugs.launchpad.net/ubuntu/+source/alsa-utils/+bug/410933

The solution is to patch sound/pci/intel8x0.c in the linux kernel to recognize your specific sound card model as one that requires quirks mode. To confirm this, run:

sudo alsa force-unload && sudo modprobe snd-intel8x0 ac97_quirk=inv_eapd

and your sound should start working. If so, the information required for the patch is the output of the command:

lspci -nv|grep -A1 0401

Send it to the alsa-devel mailing list.
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