https://bugs.kde.org/show_bug.cgi?id=408232
Bug ID: 408232
Summary: System settings crashes on startup after changing lock
screen appearance
Product: systemsettings
Version: 5.13.5
Platform: Kubuntu Packages
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: rybak....@gmail.com
Target Milestone: ---
SUMMARY
Tried to change lock screen appearance (last action was click on the background
color picker). System settings window closed (without crash notification).
Subsequent attempts to launch "System settings" failed.
STEPS TO REPRODUCE
1. Do something what systemsettings5 apparently can't handle in the tab
"Desktop Behavior > Screen locking > Appearance".
2. "System settings" window closes by itself
3. Try to launch "System settings" again from launcher.
4. "$ systemsettings5"
5. "$ systemsettings5 --version"
OBSERVED RESULT
What seems like a crash on step #2
System settings does not launch on step #3
On step #4:
> Please instantiate the QApplication object first
On step #5:
> Please instantiate the QApplication object first
and no output about the version
EXPECTED RESULT
"System settings" application does not crash after step #1
"System settings" application launches on steps #3 and #4.
Version info is printed on step #5.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 18.10
(available in About System)
KDE Plasma Version: 5.13.5
KDE Frameworks Version: 5.50.0
Qt Version: 5.11.1
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