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 <[email protected]> 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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https://bugs.launchpad.net/bugs/1911001
Title:
Use DCPD to control HP DreamColor panel
Status in HWE Next:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem-5.10 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Fix Committed
Status in linux-oem-5.10 source package in Focal:
Fix Released
Status in linux source package in Groovy:
Fix Committed
Status in linux-oem-5.10 source package in Groovy:
Won't Fix
Bug description:
[Impact]
Cannot change brightness on HP ZBook Fury with certain panel.
[Fix]
Add the panel to DPCD quirk table to use DPCD to control the panel
backlight.
[Test]
Changing backlight sysfs doesn't change the display brightness.
With the patch applied, changing sysfs backlight can really change the
display brightness.
[Where problems could occur]
This fix is specific to a single panel, so it's not likely to cause any
regression to other devices.
To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1911001/+subscriptions
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