Bug 488878

Summary:	When moving certain types of windows, the window decoration is sometimes offset incorrectly.
Product:	[Plasma] kwin	Reporter:	Naxdy <xnaxdy>
Component:	scene-opengl	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	julien.dlq, kwin-bugs-null, nate, uhhadd, xaver.hugl
Priority:	NOR	Keywords:	regression
Version First Reported In:	6.1.0
Target Milestone:	---
Platform:	NixOS
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Screen recording of the bug bug showcase (no outline)

Description Naxdy 2024-06-21 09:50:45 UTC

SUMMARY
When moving certain types of windows, the window decoration is sometimes offset incorrectly.

STEPS TO REPRODUCE
1. Open an affected window (tested with DBeaver Flatpak)
2. Move the affected window around slowly (done with Meta+Left Click, but dragging normally works as well)

OBSERVED RESULT
The window decoration is sometimes offset incorrectly (see video)

EXPECTED RESULT
The window decoration is never offset incorrectly.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: NixOS
(available in About System)
KDE Plasma Version: 6.1.0
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.1

ADDITIONAL INFORMATION
Out of all applications, DBeaver is the only one I could observe this behavior with. The behavior was not present in 6.0.x.

Monitor resolution is 7680x2160, 240Hz refresh rate, 100% scaling. GPU is AMD 7900 XTX.

Could be a KWin issue?

Comment 1 Naxdy 2024-06-21 09:51:08 UTC

Created attachment 170738 [details]
Screen recording of the bug

Comment 2 Vlad Zahorodnii 2024-06-21 10:06:01 UTC

What if you disable the window outline?

Comment 3 Naxdy 2024-06-21 10:13:53 UTC

Created attachment 170740 [details]
bug showcase (no outline)

Still happens with outline off.

Comment 4 Zamundaaa 2024-06-27 09:46:14 UTC

Are you on Wayland or Xorg? This doesn't happen for me on Wayland

Comment 5 Naxdy 2024-06-27 09:58:14 UTC

Wayland, using the flatpak version of DBeaver. Also happens on my laptop. Both AMD graphics.

Comment 6 Vlad Zahorodnii 2024-07-02 10:07:19 UTC

Hmm I can't reproduce it.

Comment 7 Nate Graham 2024-11-27 21:06:51 UTC

Are you still able to reproduce it in Plasma 6.2 or with git master?

Comment 8 Bug Janitor Service 2024-12-12 03:46:37 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 9 Bug Janitor Service 2024-12-27 03:47:32 UTC

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

Comment 10 Naxdy 2024-12-29 11:38:55 UTC

Odd, didn't get the notifications for this one for some reason. Anyway, it's still reproducible for me on 6.2.4.

Comment 11 Naxdy 2025-03-06 10:26:33 UTC

Can't reproduce this anymore as of 6.3.2.