Comment 5 for bug 704401

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Michael Helmling (supermihi) wrote :

I was able to get optical sound working by following this guide: https://help.ubuntu.com/community/HdaIntelSoundHowto

If I add the line

options snd-hda-intel model=6stack-dig

to /etc/modprobe.d/alsa-base.conf, the SPDIF sound works again. So I'd guess that the autodetection of the sound card model somehow broke in 2.6.35-25?