Bug 500033 - KWin and Plasma crash after plugging in Thunderbolt dock
Summary: KWin and Plasma crash after plugging in Thunderbolt dock
Status: RESOLVED FIXED
Alias: None
Product: kwin
Classification: Plasma
Component: generic-crash (show other bugs)
Version: 6.3.0
Platform: Fedora RPMs Linux
: NOR crash
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords: regression
Depends on:
Blocks:
 
Reported: 2025-02-13 22:02 UTC by Jasmin
Modified: 2025-02-15 03:47 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In: 6.3.1
Sentry Crash Report: https://crash-reports.kde.org/organizations/kde/issues/132362


Attachments
stacktrace of kwin (49.61 KB, text/plain)
2025-02-13 22:02 UTC, Jasmin
Details
stacktrace plasmashell (90.11 KB, text/plain)
2025-02-13 22:03 UTC, Jasmin
Details

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Description Jasmin 2025-02-13 22:02:38 UTC
Created attachment 178324 [details]
stacktrace of kwin

SUMMARY

After plugging my Thunderbolt-based dock out and back in, kwin and plasmashell immediately crashed.
For some yet unknown reason, this did not happen the first time, only after ~1h of usage.

After rebooting, I was not able to reproduce it as well, so it's maybe something that only happens after a while.
As a consequence, I am not sure whether the steps below are the actual reproduction steps, they're only a guess.

STEPS TO REPRODUCE
1. Use your device for a while, while being connected to a Thunderbolt dock.
2. Plug it out.
3. Plug it back in.

OBSERVED RESULT

KWin and plasmashell crashed.

EXPECTED RESULT

They don't.

SOFTWARE/OS VERSIONS

Operating System: Fedora Linux 41
KDE Plasma Version: 6.3.0
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.2
Kernel Version: 6.12.11-200.fc41.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 8 × 11th Gen Intel® Core™ i5-1145G7 @ 2.60GHz
Memory: 15.3 GiB of RAM
Graphics Processor: Mesa Intel® Iris® Xe Graphics

ADDITIONAL INFORMATION

I hope the attached stacktraces are actually useful.
If you need the *.zst coredumps as well, just tell me, I copied them over to a backup location so they don't get deleted.
Comment 1 Jasmin 2025-02-13 22:03:08 UTC
Created attachment 178325 [details]
stacktrace plasmashell
Comment 3 Marcelo Vanzin 2025-02-14 00:49:52 UTC
Getting similar crashes of plasmashell / kwin, just by plugging / unplugging HDMI cable. Started after upgrade to 6.3. On Neon 24.04, X11.
Comment 4 Zamundaaa 2025-02-14 13:43:13 UTC
This will be fixed with https://invent.kde.org/plasma/kwin/-/merge_requests/7142
Comment 5 Nate Graham 2025-02-15 03:46:09 UTC
(In reply to Marcelo Vanzin from comment #3)
> Getting similar crashes of plasmashell / kwin, just by plugging / unplugging
> HDMI cable. Started after upgrade to 6.3. On Neon 24.04, X11.

Since you're on X11, this is something different:
Comment 6 Nate Graham 2025-02-15 03:47:17 UTC
...Specifically, Bug 499846.