both dell_backlight and nvidia_0 backlight interface appear, and can't adjust the display brightness
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
New
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Jammy |
Invalid
|
Undecided
|
Unassigned | ||
linux-oem-6.0 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
Undecided
|
AceLan Kao |
Bug Description
[Impact]
When switched to discrete mode in the BIOS, nvidia driver will create its own backlight interface(nvidia_0) to control the backlight, but at the same time dell-laptop creates its own backlight interface(
[Fix]
The acpi_video_
Below commits are all from v6.1-rc1
fb1836c91317 ACPI: video: Prefer native over vendor
a5df42521f32 ACPI: video: Simplify __acpi_
b39be9f441f9 ACPI: video: Refactor acpi_video_
a2fc3c899bb0 ACPI: video: Drop backlight_
2600bfa3df99 ACPI: video: Add acpi_video_
[Test]
Verified on the target machine and confirmed dell_backlight interface is not generated.
[Where problem could occur]
All changes are in __acpi_
CVE References
Changed in linux-oem-6.0 (Ubuntu Jammy): | |
status: | New → In Progress |
Changed in linux-oem-6.0 (Ubuntu): | |
status: | New → Invalid |
Changed in linux-oem-6.0 (Ubuntu Jammy): | |
assignee: | nobody → AceLan Kao (acelankao) |
tags: | added: oem-priority originate-from-2013207 somerville |
description: | updated |
Changed in linux (Ubuntu Jammy): | |
status: | New → Invalid |
Changed in linux (Ubuntu): | |
status: | New → Fix Released |
This bug is awaiting verification that the linux-oem- 6.0/6.0. 0-1015. 15 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification- needed- jammy' to 'verification- done-jammy' . If the problem still exists, change the tag 'verification- needed- jammy' to 'verification- failed- jammy'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/ /wiki.ubuntu. com/Testing/ EnableProposed for documentation how to enable and use -proposed. Thank you!