At Tue, 18 Oct 2011 10:10:14 +0200, Éric Piel wrote:

Dear Takashi,

I have a regression here on 3.1-rc9+ causing the sound "going too fast" with hda. Reverting 798cb7e897210 (ALSA: hda - Fix a regression of the position-buffer check) fixes this regression for me.

Of course, as this commit is itself a regression fix, my goat feeling is that it's not going to be possible to directly revert it. Attached if the output of alsa-info.sh (on the fixed kernel). Please let me know if I can provide you any additional information or test any patch.

If that commit affects, the best fix would be to give a quirk specific to your device. Try to pass either position_fix=1 or position_fix=2. Only one of them should work (likely 2).

After checking it, you can add it to position_fix_list[] in sound/pci/hda/hda_intel.c together with PCI SSID.

thanks,

Takashi