Comment 3 for bug 600096

That will affect Ubuntu 10.10. I had the same problem while testing the latest beta.

Please try to load the sound module like that: snd-hda-intel model="ideapad"
Or, just create a file named something like /etc/modprobe.d/alsa-intel.conf and put the line

options snd-hda-intel model="ideapad"

I bisected that issue and found out that git commit 7b2bfdb kind of broke it.

I just reported this issue upstream to the linux-kernel and alsa-devel mailing lists. I don't expect Canonical to fix this issue.

To me the bug is very valid. ;)

- a8