Add support for NVIDIA EC backlight
Bug #1953286 reported by
Kai-Heng Feng
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Low
|
Unassigned | ||
Focal |
Won't Fix
|
Undecided
|
Unassigned | ||
linux-oem-5.14 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Low
|
Unassigned |
Bug Description
[Impact]
Some system equipped with NVIDIA GFX cannot change screen brightness.
[Fix]
Add new way to change brightness.
[Test]
After the fix is applied, there's a new backlight sysfs
"nvidia_
[Where problems could occur]
The driver relies on BIOS to behave correctly. If the BIOS lies or has a
bug, the new backlight interface will overtake other backlight
interfaces. It's rather unlikely though.
Changed in linux-oem-5.14 (Ubuntu): | |
status: | New → Invalid |
Changed in linux (Ubuntu Focal): | |
status: | New → Won't Fix |
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
Changed in linux-oem-5.14 (Ubuntu Focal): | |
status: | New → Confirmed |
importance: | Undecided → Low |
Changed in linux (Ubuntu): | |
importance: | Undecided → Low |
tags: | added: oem-priority originate-from-1945739 somerville |
Changed in linux-oem-5.14 (Ubuntu Focal): | |
status: | Confirmed → Fix Committed |
Changed in hwe-next: | |
status: | New → Fix Released |
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This bug is awaiting verification that the linux-oem- 5.14/5. 14.0-1011. 11 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- focal' to 'verification- done-focal' . If the problem still exists, change the tag 'verification- needed- focal' to 'verification- failed- focal'.
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!