[SRU][Focal][PATCH 0/1] Fix the Headphone and Mic issues on the Acer Aspire 5

[Hui Wang]

BugLink: https://bugs.launchpad.net/bugs/1930188

The patch was merged to ubuntu 5.13.0 and 5.11.0 generic kernels
with stable update already, but it is not merged to ubuntu 5.4.0
kernel yet, so I sent this SRU for the focal kernel.

[Impact]
Users plug headphone and Mic to the audio jacks, but the system
can't detect them, and couldn't output sound through headphone and
record sound through Mic.

[Fix]
Backport a upstream patch, this will set the Mic to auto-detection
mode and set the headphone to left location.


[Test]
Plug a headset to the headset audio jack, both headphone and mic
could be detected. And output the sound to headphone, could hear
the sound, record the sound through Mic, the sound could be recorded.


[Where problems could occur]
The patch is specific to Acer Aspire 5 machine, if it could introduce
regression, it will make the audio like internal mic and internal spk
stop working. But this possibility is very low.


Hui Wang (1):
  ALSA: hda/realtek: headphone and mic don't work on an Acer laptop

 sound/pci/hda/patch_realtek.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

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2.25.1