Bug 509513

Summary:	desktop flashing and dissapearing shortly after login(plasmashell.service failing)
Product:	[Plasma] plasmashell	Reporter:	antonismark03
Component:	generic-crash	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	crash	CC:	ivan.cukic, kdedev
Priority:	NOR
Version First Reported In:	6.4.5
Target Milestone:	1.0
Platform:	CachyOS
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	coredump from systemd service

Description antonismark03 2025-09-15 11:34:27 UTC

Created attachment 184961 [details]
coredump from systemd service

***
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If you're reporting a crash, attach a backtrace with debug symbols; see https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports

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***

SUMMARY


STEPS TO REPRODUCE
1. start plasma
2. login into your session
3. start your programs 
4. a while the taskbar will start to flash and later dissapear.

OBSERVED RESULT
the plasma works fine for some time but later the desktop and task bar starts flash and eventually dissapear. a later invistigation found out that the user plasmashell.service showed that it had failed , restarting the service yielded no success and resulted in the same flashing of the desktop

EXPECTED RESULT
the plasma works fine

SOFTWARE/OS VERSIONS
Operating System: CachyOS Linux 
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.18.0
Qt Version: 6.9.2
Kernel Version: 6.16.5-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 9600X 6-Core Processor
Memory: 32 GiB of RAM (30.5 GiB usable)
Graphics Processor 1: AMD Radeon RX 570 Series
Graphics Processor 2: AMD Radeon Graphics


ADDITIONAL INFORMATION

Comment 1 antonismark03 2025-09-15 15:57:52 UTC

the issue seems to be related to kdiskmonitor icon not being recognized as an applet image, running plasmashell in shell yielded this:
KPackageStructure of KPluginMetaData(pluginId:"org.papylhomme.diskmonitor", fileName: "/usr/share/plasma/plasmoids/org.papylhomme.diskmonitor/metadata.json") does not match requested format "Plasma/Applet"
kf.plasma.quick: Applet preload policy set to 1
KCrash: Attempting to start /usr/bin/plasmashell
KCrash: Application 'plasmashell' crashing... crashRecursionCounter = 2
fish: Job 1, 'plasmashell' terminated by signal SIGSEGV (Address boundary error)

KPackageStructure of KPluginMetaData(pluginId:"org.papylhomme.diskmonitor", fileName: "/usr/share/plasma/plasmoids/org.papylhomme.diskmonitor/metadata.json") does not match requested format "Plasma/Applet"

i tried to also get backtraces using GNU debugger but weirdly the desktop works fine if plasmashell is runned from QDB it only crashes if started from shell or by systemd service

Comment 2 TraceyC 2025-09-16 20:59:46 UTC

As the message at the top of the summary says, if something crashed, we need a backtrace of it so we can figure out what's going on. Can you please attach a backtrace of the crash using the coredumpctl command-line program, as detailed in https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports#Retrieving_a_backtrace_using_coredumpctl ?

If the crash doesn't happen when you're running gdb, you can try getting the backtrace with Valgrind.

Thanks.

Comment 3 Bug Janitor Service 2025-10-01 03:46:38 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 4 Bug Janitor Service 2025-10-16 03:47:20 UTC

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