To support AMD Adaptive Backlight Management (ABM) for power profiles daemon >= 2.0
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| HWE Next |
New
|
Undecided
|
Unassigned | ||
| linux (Ubuntu) |
In Progress
|
High
|
You-Sheng Yang | ||
| Noble |
In Progress
|
High
|
You-Sheng Yang | ||
Bug Description
[SRU Justification]
[Impact]
power-profiles-
sysfs entry to set desired panel power saving level. Related kernel
fixes are to be released in v6.9.
[Fix]
Two linux-next committed fixes are required. The first one introduces
panel_power_savings sysfs entry itself, and the second one extends
abmlevel sysfs entry to allow an auto mode.
[Test Case]
1. Check existence of panel_power_savings sysfs entry:
$ cat /sys/class/
-1
2. Remove power cable and switch between power profiles from Power
Management settings. The content of above panel_power_savings sysfs
entry should be updated correspondingly.
[Where problems could occur]
While the abmlevel entry now has a different default value that allows
automatic power management, the behavior may differ from users'
expectation.
[Other Info]
power-profiles-
this moment, so only Noble/Unstable will be nominated for fix.
========== original bug report ==========
Required kernel fixes (in linux-next):
* https:/
* https:/
See also power-profiles-
| tags: | added: amd oem-priority originate-from-2055169 |
| Changed in linux (Ubuntu Noble): | |
| status: | New → In Progress |
| importance: | Undecided → High |
| assignee: | nobody → You-Sheng Yang (vicamo) |
SRU:
* https:/
* https:/