Bug 389397

Summary: Desktop not updating properly after quicktiling a maximized window
Product: [Plasma] kwin Reporter: kafei <matthewisrippin>
Component: compositingAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED FIXED    
Severity: normal Flags: mgraesslin: Wayland-
mgraesslin: X11+
mgraesslin: NVIDIA+
Priority: NOR    
Version First Reported In: 5.11.5   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: Two quicktiled windows.
One window maximized.
Corruption on the left window after quicktiling the right one back.
qdbus Kwin support infomation

Description kafei 2018-01-25 03:01:57 UTC
Created attachment 110104 [details]
Two quicktiled windows.

If I have two quicktiled windows side-by-side, and I maximize one of them and quicktile it back to where it was before, the other window remains partially covered by the maximized texture. It won't go away until I bring the corrupted window into focus, and then everything is normal again.

Unfortunately when I try to take a screenshot with spectacle, the corruption goes away, so I had to take some pictures with my phone.

I can't remember exactly when this started happening, but I think it was with Plasma 5.11. It happens under both OpenGL and XRender.

System info:
Arch Linux
Nvidia proprietary driver 387.34-21
Plasma 5.11.5
Frameworks 4.42.0
Qt 5.10.0
Comment 1 kafei 2018-01-25 03:02:33 UTC
Created attachment 110105 [details]
One window maximized.
Comment 2 kafei 2018-01-25 03:03:17 UTC
Created attachment 110106 [details]
Corruption on the left window after quicktiling the right one back.
Comment 3 kafei 2018-01-25 03:08:42 UTC
Created attachment 110107 [details]
qdbus Kwin support infomation
Comment 4 Martin Flöser 2018-01-25 05:30:06 UTC
most likely this is a problem in combination with the nvidia driver.
Comment 5 kafei 2018-04-05 23:22:27 UTC
This bug no longer happens since bug 376104 was fixed.