This bug was fixed in the package linux-oem-5.6 - 5.6.0-1036.39
---------------
linux-oem-5.6 (5.6.0-1036.39) focal; urgency=medium
* focal/linux-oem-5.6: 5.6.0-1036.39 -proposed tracker (LP: #1906396)
* Prevent thermal shutdown during boot process (LP: #1906168)
- SAUCE: thermal: core: Add indication for userspace usage
- SAUCE: thermal: int340x: Indicate userspace usage
- SAUCE: thermal: intel: intel_pch_thermal: Indicate userspace usage
* 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 (LP: #1905808)
- ALSA: hda/realtek - Fixed Dell AIO wrong sound tone
* [SRU][OEM-5.6] UBUNTU: SAUCE: Fix brightness control on BOE 2270 panel
(LP: #1904991)
- SAUCE: drm/i915: Force DPCD backlight mode for BOE 2270 panel
* Use ACPI S5 for reboot (LP: #1904225)
- PM: ACPI: reboot: Use S5 for reboot
-- Timo Aaltonen <[email protected]> Wed, 02 Dec 2020
09:55:46 +0200
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1905808
Title:
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
Status in HWE Next:
New
Status in linux-oem-5.6 package in Ubuntu:
In Progress
Status in linux-oem-5.6 source package in Focal:
Fix Released
Bug description:
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.
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