This bug was fixed in the package linux-oem-5.10 - 5.10.0-1032.33
---------------
linux-oem-5.10 (5.10.0-1032.33) focal; urgency=medium
* focal/linux-oem-5.10: 5.10.0-1032.33 -proposed tracker (LP:
#1932138)
* Mute/Mic mute LEDs and right speaker are not work on HP platforms
(LP: #1932055)
- ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP Elite
Dragonfly
G2
- ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP EliteBook x360
1040 G8
- ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook 840 Aero G8
- ALSA: hda/realtek: fix mute/micmute LEDs for HP ZBook Power G8
-- Timo Aaltonen <timo.aalto...@canonical.com> Wed, 16 Jun 2021
15:27:58 +0300
** Changed in: linux-oem-5.10 (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1930527
Title:
[SRU][OEM-5.10/H] UBUNTU: SAUCE: Fix backlight control on Samsung
16727 panel
Status in HWE Next:
New
Status in linux package in Ubuntu:
New
Status in linux-oem-5.10 package in Ubuntu:
Invalid
Status in linux-oem-5.10 source package in Focal:
Fix Released
Status in linux source package in Hirsute:
New
Bug description:
SRU justification:
[Impact]
Backlight can't be controlled on 5.11- version of kernel.
[Fix]
The panel needs DPCD to get control of backlight.
After 5.12 kernel introduced new Intel HDR backlight control, and it works
well
on this panel.
Add quirk ID to enable DPCD on 5.11- kernel.
[Test]
Vendor Verified on hardware, with this quirk backlight can be changed on 5.10
and 5.11 kernel.
[Where problems could occur]
The panel backlight may not be changed.
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