Bug 455256 - Changing the brightness above ~45% on 5.25.0 causes the brightness to reset back to ~10%
Summary: Changing the brightness above ~45% on 5.25.0 causes the brightness to reset b...
Status: RESOLVED DUPLICATE of bug 454161
Alias: None
Product: Powerdevil
Classification: Plasma
Component: general (show other bugs)
Version: 5.25.0
Platform: Arch Linux Linux
: NOR major
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-06-14 14:31 UTC by [object Object]
Modified: 2022-06-27 21:52 UTC (History)
2 users (show)

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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!