intel-hda Realtek ALC889A on macbook pro 5,2
After kernel 3.4.0-rc2, no sound comes through the headphone jack. Otherwise sound still appears to work with internal speakers.
After a git bisect, this appears to be the breaking commit:
I have tried various "model=" options, but without luck.
00:08.0 Audio device: nVidia Corporation MCP79 High Definition Audio (rev b1)
00:08.0 0403: 10de:0ac0 (rev b1)
Created attachment 73568 [details]
alsa-info output with working headphones
Created attachment 73569 [details]
alsa-info output with NON-working headphones
My bad, this was a simple overlook. Try the patch below.
Created attachment 73581 [details]
Applied patch the patch, and I can confirm that it has solved the issue. Headphone audio now works as expected.
Thank you Mr Iwai!
A patch referencing this bug report has been merged in Linux v3.5-rc3:
Author: Takashi Iwai <email@example.com>
Date: Wed Jun 13 16:47:32 2012 +0200
ALSA: hda - Don't forget to call init verbs added by fixup list