I confirm that adding "options snd-hda-intel model=auto" to alsa-base solved my problem on a toshiba A100-SK9.
-- [Feisty] Sound card (HDA) no more detected after switching from -8 to -9 https://launchpad.net/bugs/88400 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
