Bug 462292

Summary:	Screen dimming does not work with slider (or shortcut on keyboard)
Product:	[Applications] systemsettings	Reporter:	Anders Steen <aogmsteen>
Component:	general	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED DOWNSTREAM
Severity:	wishlist
Priority:	NOR
Version First Reported In:	5.18.0
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Anders Steen 2022-11-26 22:58:55 UTC

SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***


STEPS TO REPRODUCE
1. in LXQT settings go to brightness
2. use the two sliders to set brightness. 
3. 

OBSERVED RESULT
system was hanging in a loop while displaying the slider goes to dark setting.
system looping several times between start setting of slider to end setting, resulting in a black screen. 
EXPECTED RESULT

a less bright screen, not black

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 
LXQt Desktop Toolbox - Technical Info<p>
  LXQt About Version:     1.1.0
  LXQt Version:           1.1.0
  Qt:                     5.15.6
  Build type:             Release
  


ADDITIONAL INFORMATION

Comment 1 Bug Janitor Service 2022-11-26 23:33:30 UTC

Thank you for the bug report!

However Plasma 5.18.0 is no longer supported by KDE; supported versions are 5.24, and 5.26 or newer.
Your distribution is responsible for providing support for older versions of KDE software.

Please do one of the following:
- Upgrade to a supported version and see if the issue is still relevant
- Report the issue to your distribution