tree 87c8999c9e6dff6f0a922b8ba3795307fd8afd37
parent 5ead56f2dad53c6c2eaaf13e2de4125a59a3935b
author David Henningsson <david.henningsson@canonical.com> 1365589567 +0200
committer Takashi Iwai <tiwai@suse.de> 1366179224 +0200

ALSA: hda - fixup D3 pin and right channel mute on Haswell HDMI audio

When graphics initializes the HDMI chip, sometimes this leads to
pins going into D3 and right channel being muted. If the audio driver
finishes initialization before the graphic driver does, this situation
becomes permanent.

This is a workaround that checks for this situation and corrects it on
playback prepare. It has been verified working on at least one machine.

BugLink: https://bugs.launchpad.net/bugs/1167270
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>