This bug was fixed in the package linux-oem-5.10 - 5.10.0-1011.12
---------------
linux-oem-5.10 (5.10.0-1011.12) focal; urgency=medium
* focal/linux-oem-5.10: 5.10.0-1011.12 -proposed tracker (LP:
#1913030)
* Support CML-S CPU + TGP PCH (LP: #1909457)
- Revert "UBUNTU: SAUCE: drm/i915/rkl: new rkl ddc map for different PCH"
- drm/i915/dg1: gmbus pin mapping
- drm/i915/dg1: Don't program PHY_MISC for PHY-C and PHY-D
- drm/i915/dg1: add hpd interrupt handling
- drm/i915/display/ehl: Limit eDP to HBR2
- drm/i915/jsl: Split EHL/JSL platform info and PCI ids
- drm/i915: Add PORT_TCn aliases to enum port
- drm/i915: s/PORT_TC/TC_PORT_/
- drm/i915/rkl: new rkl ddc map for different PCH
- SAUCE: drm/i915/gen9_bc : Add TGP PCH support
* backlight parsing for VBT 234+ (LP: #1912157)
- drm/i915/vbt: Fix backlight parsing for VBT 234+
- drm/i915/vbt: Update the version and expected size of
BDB_GENERAL_DEFINITIONS map
- drm/i915/vbt: Add VRR VBT toggle
* HD Audio Device PCI ID for the Intel Cometlake-R platform (LP: #1912427)
- SAUCE: ALSA: hda: Add Cometlake-R PCI ID
-- Timo Aaltonen <timo.aalto...@canonical.com> Mon, 25 Jan 2021
11:43:18 +0200
** Changed in: linux-oem-5.10 (Ubuntu Focal)
Status: Fix Committed => Fix Released
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-5.6 in Ubuntu.
https://bugs.launchpad.net/bugs/1904991
Title:
[SRU][OEM-5.6] UBUNTU: SAUCE: Fix brightness control on BOE 2270 panel
Status in HWE Next:
New
Status in HWE Next groovy series:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem-5.10 package in Ubuntu:
New
Status in linux-oem-5.6 package in Ubuntu:
New
Status in linux source package in Focal:
Incomplete
Status in linux-oem-5.10 source package in Focal:
Fix Released
Status in linux-oem-5.6 source package in Focal:
Fix Released
Status in linux source package in Groovy:
Fix Committed
Status in linux source package in Hirsute:
Incomplete
Bug description:
[Impact]
BOE 2270 panel is used by several models of ThinkPads.
This brightness can not be controlled by default PWM.
[Fix]
The panel claims both PWM and AUX supports.
But actually PWM works on SDR mode, AUX works on HDR mode.
Intel i915 driver got a new SDR support to use PWM by maintainer, still in
upstream review.
To fix this on certain project, use a quirk first to fix this.
The maintainer's fix can be backported in future.
[Test Case]
Backlight brightness can be changed.
[Regression Potential]
Low,
Fix for specific panel ID, no effects for others.
Since this is temporary quirk, it will go to oem-5.6 only.
To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1904991/+subscriptions
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