Bug 455256

Summary:	Changing the brightness above ~45% on 5.25.0 causes the brightness to reset back to ~10%
Product:	[Plasma] Powerdevil	Reporter:	[object Object] <rohan>
Component:	general	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED DUPLICATE
Severity:	major	CC:	nate, sebbenatar
Priority:	NOR
Version:	5.25.0
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed In:

Description [object Object] 2022-06-14 14:31:26 UTC

SUMMARY

STEPS TO REPRODUCE
1. Install KDE 5.25.0
2. Drag the brightness slider above ~45%
3. Rather than working correctly the screen flashes the higher brightness and then resets to ~10%

This is an intel backlight (framework laptop).
Setting the brightness to 100% manually through `echo 96000 > /sys/class/backlight/intel_backlight/brightness` works fine.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux
(available in About System)
KDE Plasma Version: 5.25.0
KDE Frameworks Version: 5.95.0
Qt Version: 5.15.4

Comment 1 Nate Graham 2022-06-14 18:17:11 UTC


*** This bug has been marked as a duplicate of bug 454161 ***

Comment 2 [object Object] 2022-06-14 18:45:20 UTC

This seems to be unrelated to whatever I set the brightness to on battery/low battery though. It starts bugging out at exactly 47%, which none of my brightness levels are set to.

Comment 3 Sebastian Benatar 2022-06-27 21:10:39 UTC

I'm having the exact same problem with my framework laptop on KDE neon, which is Ubuntu based

Comment 4 Nate Graham 2022-06-27 21:11:57 UTC

The fix is in Plasma 5.25.1. Is that the version you're running, or do you still have 5.25.0? If so, just wait for the update to 5.25.1.

*** This bug has been marked as a duplicate of bug 454161 ***

Comment 5 Sebastian Benatar 2022-06-27 21:37:53 UTC

Just updated to 5.25.1, and it's fixed. Thanks so much.

Comment 6 Nate Graham 2022-06-27 21:52:17 UTC

You're welcome!