[SRU][OEM-5.6][PATCH 0/1] alsa/hda: The sound output is abnormal when the balance is on center after switch from the audio speaker to headset on a Dell AIO

Hui Wang hui.wang at canonical.com
Fri Nov 27 02:58:27 UTC 2020


BugLink: https://bugs.launchpad.net/bugs/1905808

Since this patch is cced to stable kernel, I only send this patch
to oem-5.6 kernel since oem project needs it, other ubuntu kernels
will merge this patch with stable update.

[Impact]
The sound output is abnormal when the balance is on center after
switch from the audio speaker to headset on a Dell AIO

[Fix]
Realtek engineer submit a patch to usptream, I backport this patch
to ubuntu oem kernel.

[Test]
plug a speaker, plug out this speaker, then plug a headset, play some
sound from headset, the sound quality is pretty good.

[Regression Potential]
This SRU could make some Dell AIO not work well on audio output, like
can't output sound or output poor quality sound. but this posibility is
low since we tested this patch on a couple of dell AIO, all worked well.


Kailang Yang (1):
  ALSA: hda/realtek - Fixed Dell AIO wrong sound tone

 sound/pci/hda/patch_realtek.c | 40 +++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

-- 
2.25.1




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