Bug 352187

Summary:	Screen brightness on power management doesn't work
Product:	[Plasma] plasmashell	Reporter:	Ezio Vergine <virgolus>
Component:	Power management & brightness	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	kde, kdedev, nate
Priority:	NOR
Version First Reported In:	6.2.4
Target Milestone:	1.0
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Ezio Vergine 2015-09-02 23:47:35 UTC

If I change screen brightness for "on battery mode" on power management kcm, when I disconnect the AC power, the screen remain at the same level of luminosity. The screen change the brightness  from AC plugged to battery only if I set the brightness bar to the minimun value

Reproducible: Always

Comment 1 Kai Uwe Broulik 2015-09-03 06:41:56 UTC

It does not change the brightness of the current brightness is lower than the one configured for the other profile. Could that be the case?

Comment 2 Ezio Vergine 2015-09-03 12:28:45 UTC

I don't understand yor question.

AC power -> 100% brightness slider
battery power -> 30% brightness slider

This combination doesn't work.
It work correctly with this combination:

AC power -> 100% brightness slider
battery power -> 0% brightness slider

Is this related to the fact that brightness slider in systemsettings is continous while the monitor have about 7 levels of brightness?

Comment 3 TraceyC 2025-03-06 18:22:49 UTC

Closing, since the problem was last reported to be seen in 2015. If you're still experiencing this bug, please open a new report. Thanks.