https://bugs.kde.org/show_bug.cgi?id=442864
Bug ID: 442864
Summary: System Settings freezes completely if 'Night Color'
KCM is selected.
Product: systemsettings
Version: 5.22.90
Platform: openSUSE RPMs
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: kcm_kscreen
Assignee: kscreen-bugs-n...@kde.org
Reporter: lemuelsimo...@protonmail.com
CC: plasma-b...@kde.org
Target Milestone: ---
SUMMARY
If System Settings is launched and the user navigates from 'Display and
Monitor' -> 'Night Color', System Settings hangs for an extremely long time
(2-5 minutes), before Night Color's settings screen is displayed. The user is
forced to wait-it-out or kill it (as it looks frozen). It can be triggered
every time the user switches between another KCM and Night Color.
STEPS TO REPRODUCE
1. Open System Settings
2. Go to 'Display and Monitor' -> 'Night Color'
3. Observe the freeze.
OBSERVED RESULT
System Settings freezes completely when selecting 'Night Color'.
EXPECTED RESULT
Night Color settings appear shortly after selecting it in System Settings.
SOFTWARE/OS VERSIONS
Operating System: openSUSE Leap 15.3
KDE Plasma Version: 5.22.90
KDE Frameworks Version: 5.86.0
Qt Version: 5.15.2
Kernel Version: 5.3.18-57-default (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5-3320M CPU @ 2.60GHz
Memory: 7.6 GiB of RAM
Graphics Processor: Mesa DRI Intel® HD Graphics 4000
ADDITIONAL INFORMATION
I'll also note that if Night Color is active, clicking on 'Display and Monitor'
in System Settings would freeze the program and disable 'Night Color'. I wonder
if it's vaguely related to this bug:
https://bugs.kde.org/show_bug.cgi?id=428854
.I'll open another bug report for that.
Running System Settings in the terminal doesn't give much information to work
with (just deprecation warnings).
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