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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https://bugs.launchpad.net/bugs/1865402
Title:
Stop using get_scalar_status command in Dell AIO uart backlight driver
Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-oem-5.10 package in Ubuntu:
Invalid
Status in linux-oem-osp1 package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Released
Status in linux-oem-osp1 source package in Bionic:
Fix Released
Status in linux source package in Eoan:
Fix Released
Status in linux source package in Focal:
In Progress
Status in linux-oem-5.10 source package in Focal:
Fix Released
Status in linux source package in Groovy:
In Progress
Status in linux source package in Hirsute:
In Progress
Bug description:
[Impact]
The get_scalar_status command was provided by ODM engineer and was newly
introduced to determinate whether scalar is responsible for the backlight
adjustment. That guy asked the scalar vendor to add this command and the
command works as expected. But there is already a command in the Dell AIO
scalar UART command spec. which can do the same thing since 2015, and the newly
introduced get_scalar_status command is undocumented. To prevent from
introducing regression in the future and to align with what Windows uses,
replace this command with get_display_mode command.
[Fix]
Replace get_scalar_status command with get_display_mode command.
[Test]
Verified on new Dell AIO platforms.
[Regression Potential]
Low, the command is already in the spec. since 2015.
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