Bug 506098

Summary:	Plasma Hangup Randomly
Product:	[Plasma] kwin	Reporter:	Syntist <syed.talha.khalid>
Component:	core	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DOWNSTREAM
Severity:	critical	CC:	nate
Priority:	NOR
Version First Reported In:	6.4.0
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Syntist 2025-06-24 09:59:59 UTC

I am not sure how to reproduce it but it happens randomly, sometime when i open application or sometime when I am testing Proton Game and i close reopen multiple time and it causes hangup whole computer, Before DE stop responding then everything else crashes and have to restart Forcefully

Provided log for the boot that had crash/hang
https://paste.cachyos.org/p/d269b64

OBSERVED RESULT
Sometime opening application causes hang

EXPECTED RESULT
If there is a crash or any error, DE should recover from it.

OS: CachyOS x86_64
Kernel: Linux 6.15.3-2-cachyos
DE: KDE Plasma 6.4.0
WM: KWin (Wayland)

Comment 1 Vlad Zahorodnii 2025-06-24 12:29:12 UTC

Can you capture dmesg logs too?

Comment 2 Syntist 2025-06-24 16:00:48 UTC

(In reply to Vlad Zahorodnii from comment #1)
> Can you capture dmesg logs too?

Am not sure how to get dmesg for last boot, ```journalctl -b -1 -k ```

https://paste.cachyos.org/p/d7550f4

And dmesg logs, not sure how to fetch dmesg log for last session.
https://paste.cachyos.org/p/ef6d387

Comment 3 Syntist 2025-06-26 03:28:44 UTC

It was related to my Samsung 980 Pro, I updated the firmware and it fixed this issue, so far no crashes.

https://discuss.cachyos.org/t/cachyos-hangup-randomly/10520/5

More info here