[SRU][OEM-5.6][PATCH 0/1] alsa/hda: mic doesn't work on a HP AIO machine

[Hui Wang]

BugLink: https://bugs.launchpad.net/bugs/1897694

This fix is only for oem-5.6 kernel, other kernels will merge this
patch with stable update. Our oem project needs this patch to be merged
ASAP, and I am going to have a 8 days public holiday, so sent this SRU.

[Impact]
We had a HP AIO machine, after plugging the headset and trying
to record sound from Mic, but can't record any sound.

[Fix]
Set the auto detect mode for Mic, this patch is going to be merged
by upstream, now backport it to oem-5.6 kernel.

[Test Case]
Boot the system, plug a headset and check the gnome-control-center,
the Mic is active in the UI, and record the sound, it could record
the sound.


[Regression Risk]
This patch could introduce audio jack detection problem on this HP
machine, but the possibility is very low, since we have tested it
on 3 SKUs of this machine, all worked well. And this patch only affects
this HP machine since it specifies the subsystem id of this machine.


Hui Wang (1):
  UBUNTU: SAUCE: ALSA: hda/realtek - set mic to auto detect on a HP AIO
    machine

 sound/pci/hda/patch_realtek.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

-- 
2.17.1