Bug 485937

Summary:	polkit-kde-authentication-agent-1 crashes, if QT style is overridden (QT_STYLE_OVERRIDE), only Fusion works
Product:	[Plasma] policykit-kde-agent-1	Reporter:	Fabian Arndt <fabian.arndt>
Component:	general	Assignee:	Unassigned bugs <unassigned-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	crash	CC:	drf, grahamperrin, jgrulich, jreznik, nate, sitter
Priority:	NOR
Version First Reported In:	6.0.3
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=485407
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	Stack trace

Description Fabian Arndt 2024-04-22 03:23:47 UTC

Created attachment 168779 [details]
Stack trace

SUMMARY

It crashed, if the specified theme is not present/accessible (?). The only working Theme is "Fusion".
This is happened on hyprland, as I was testing polkit with it. Nonetheless, it should not crash.


STEPS TO REPRODUCE

1. Run "QT_STYLE_OVERRIDE=Adwaita-Dark /usr/libexec/kf6/polkit-kde-authentication-agent-1"
2. Open a program that requests elevated rights (rg. partitionmanager)


OBSERVED RESULT

Crash. Some stdout output:

> QQmlApplicationEngine failed to load component
> qrc:/qml/QuickAuthDialog.qml: module "Adwaita-Dark" is not installed
> KCrash: appFilePath points to nullptr!
> KCrash: Application '<unknown>' crashing... crashRecursionCounter = 2
> Segmentation fault


EXPECTED RESULT

No crash and a themed dialog that elevated rights.


SOFTWARE/OS VERSIONS

CAUTION: I was using hyprland!

Linux: Nobara Linux 39
KDE Plasma Version: 6.0.3
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2


ADDITIONAL INFORMATION

If you enter something random as QT_STYLE_OVERRIDE, it does not crash. It instead tells you which styles could be used and falls back to Fusion.

> Available styles: Breeze, qt5ct-style, qt6ct-style, HighContrastInverse, HighContrast, Adwaita-HighContrastInverse, Adwaita-HighContrast, Adwaita-Dark, Adwaita, Windows, Fusion

Comment 1 Harald Sitter 2025-03-13 22:33:45 UTC

Is this still reproducible?

Comment 2 Bug Janitor Service 2025-03-28 03:46:46 UTC

🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!

Comment 3 Bug Janitor Service 2025-04-12 03:47:07 UTC

🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.