Comment 4 for bug 653420

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Ian Paterson (ipat500) wrote :

Yes this is reproducible with a clean (unmodified) /etc/modprobe.d/alsa-base.conf

I also noticed that only this line is really needed for the hack:
options snd-hda-intel model=dell-m4-1 enable_msi=1

If that helps narrow it down a bit, apparently its because my sound card is very similar to the dell one.