Bug 460938

Summary:	Plasma suddenly freezes with new window turning black
Product:	[Plasma] kwin	Reporter:	Kirikaze Chiyuki <ydz>
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	nate, qydwhotmail, uwu, yule2000
Priority:	NOR
Version:	5.26.1
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
See Also:	https://bugs.kde.org/show_bug.cgi?id=460895
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Kirikaze Chiyuki 2022-10-24 12:32:58 UTC

SUMMARY
During normal use of KDE Plasma, newly-appearing windows (menus, notifications, etc.) turn completely black, and after two seconds Plasma freezes.

STEPS TO REPRODUCE
This bug appears occasionally and randomly, so there may be no stable way to reproduce it.

OBSERVED RESULT
![A black notification](https://imgsrc.baidu.com/super/pic/item/060828381f30e924369fe1f009086e061d95f73c.jpg)

SOFTWARE/OS VERSIONS
Platform: X11
Arch Linux 6.0.3-2-cachyos-bore
KDE Plasma Version: 5.26.1
KDE Frameworks Version: 5.99.0
Qt Version: 5.15.6

ADDITIONAL INFORMATION
After Plasma freezes, I can switch tty and use other ttys normally without any core dump in the journal. The only error is kcm keyboard or mouse.
Killing kwin_x11 (and sometimes plasmashell) when the window starts to go black solves the problem, but after it freezes, the only way to solve is to reboot.
This bug may be related to [this change](https://invent.kde.org/plasma/kwin/-/commit/062afee75bd61e225d72b89c2b5e413e61cd23d8).

Comment 1 Timothy B 2022-10-24 18:51:02 UTC

I've been getting this behavior too about once per day since I upgraded Frameworks to 5.99 last week. It occurs when I open up the Alt-Tab switcher or KRunner. Every time this happens, I couldn't find any mention of KWin in the journal logs and Plasmashell remains responsive. I was able to kill and restart KWin on Yakuake after turning off compositing with a keyboard shortcut.

Operating System: Manjaro Linux
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.99.0
Qt Version: 5.15.6
Kernel Version: 6.0.2-3-MANJARO (64-bit)
Graphics Platform: X11
Processors: 12 × AMD Ryzen 5 1600 Six-Core Processor
Memory: 31.3 GiB of RAM
Graphics Processor: AMD Radeon RX 570 Series
Task Switcher: Thumbnail Grid
Window Decoration: Klassy

Comment 2 Nate Graham 2022-10-24 20:54:39 UTC


*** This bug has been marked as a duplicate of bug 460486 ***

Comment 3 Nate Graham 2022-10-24 20:55:46 UTC


*** This bug has been marked as a duplicate of bug 459778 ***

Comment 4 Kirikaze Chiyuki 2022-10-25 00:17:10 UTC

(In reply to Nate Graham from comment #3)
> 
> *** This bug has been marked as a duplicate of bug 459778 ***

This bug is not a duplicate of bug 459778, because I'm on X11 not Wayland.

Comment 5 Kirikaze Chiyuki 2022-10-25 00:19:27 UTC

btw, I'm with SierraBreezeEnhanced decoration not Klassy.

Comment 6 Kirikaze Chiyuki 2022-10-25 00:56:39 UTC

EDIT: This bug can be reproduced by using notify-send to send a large number of notifications in a short period of time. After the bug occurs, restarting sddm also works.

Comment 7 Fushan Wen 2022-10-29 01:55:29 UTC


*** This bug has been marked as a duplicate of bug 461132 ***