Bug 511364

Summary:	Freeze with Calendar Events enable
Product:	[Plasma] plasmashell	Reporter:	Cosmin Tanczel <cosmin.tanczel>
Component:	Digital Clock widget	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	REPORTED ---
Severity:	major	CC:	consus, kdedev, nate
Priority:	NOR
Version First Reported In:	6.5.0
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	log.txt gdb.txt

Description Cosmin Tanczel 2025-10-30 09:21:14 UTC

SUMMARY
I have installed korganizer and added one Gmail Account. With the calendar events enable, the system freeze (I can only move the mouse).

STEPS TO REPRODUCE
1. Add a Gmail account in Korganizer
2. Enable Calendar Events in Digital Clock
3. The poput notifications appears when a event is scheduled

OBSERVED RESULT
The KDE freeze, only moving the mouse works.

EXPECTED RESULT
There should be no freezeing of the DE.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: openSUSE Tumbleweed
KDE Plasma Version: 6.5.0
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0

ADDITIONAL INFORMATION
This behavior is old (at least one year)

Comment 1 TraceyC 2025-11-06 21:10:04 UTC

Thanks for the bug report. This looks like it could be bug 496821 but we need more information to determine that.

Can you check kwin's logs when the hard freeze occurs? You'll need to run this from TTY, press Ctrl+Alt+F3 to get to it. It will create a file "log.txt" in your home folder that you can attach to this report.

  journalctl --boot --user-unit plasma-kwin_wayland > ~/log.txt

Also, could you retrieve plasmashell's backtrace when the freeze occurs?

  sudo gdb -p $(pidof plasmashell)

At the gdb prompt, do this to redirect output to a file (it will be saved to the directory you're in)

 set logging enabled on
 set logging file backtrace.log

then type

  bt

then press 'c' if it asks you if you want to continue paging

Then attach the file backtrace.log to this report. Thanks!

Comment 2 Cosmin Tanczel 2025-11-07 07:52:03 UTC

Created attachment 186574 [details]
log.txt

Comment 3 Cosmin Tanczel 2025-11-07 07:52:20 UTC

Created attachment 186575 [details]
gdb.txt

Comment 4 Cosmin Tanczel 2025-11-07 07:52:49 UTC

The requested files.

Comment 5 TraceyC 2025-11-07 21:30:29 UTC

Thanks for the files. I'll let the plugin developers take it from here.

Comment 6 Cosmin Tanczel 2025-11-17 09:34:38 UTC

Any news here?
Additional Info:
I see that it happens only on the first boot, during the PIM maintenance running (when akonadi migration agent runs)

Comment 7 TraceyC 2025-11-17 19:07:50 UTC

(In reply to Cosmin Tanczel from comment #6)
> Any news here?

You'll need to be patient. Most of the KDE contributors are volunteers, working in their spare time. This is just waiting for someone with knowledge and time to address it. Thanks for your understanding.

Comment 8 Marco Martin 2026-01-21 11:05:03 UTC

*** Bug 513934 has been marked as a duplicate of this bug. ***

Comment 9 Consus 2026-01-21 11:18:18 UTC

Happens after hibernation as well.