Bug 482992

Summary:	Clicks falling through a Firefox window after it was moved
Product:	[Plasma] kwin	Reporter:	jaskij
Component:	core	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	fanzhuyifan, nate
Priority:	NOR	Keywords:	qt6
Version First Reported In:	6.0.1
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description jaskij 2024-03-09 15:01:03 UTC

SUMMARY

Ever since upgrading to plasma and KWin 6, there is a weird behavior with clicks "falling through" windows. I have noticed it in Firefox, not sure if other programs are affected.

STEPS TO REPRODUCE
0. Have KWin's "Quick Tile Window to the Left" bound to `Meta+Left`
1. Have Firefox open
2. In quick succession hit Ctrl+N and then Meta+Left
3. Click on the tab/title bar

OBSERVED RESULT

The click is registered by whatever was behind the Firefox window (in my case, a different Firefox window)

EXPECTED RESULT

Click registers in the new window

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.0.1
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Kernel Version: 6.7.9-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor
Memory: 62.7 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3070/PCIe/SSE2

ADDITIONAL INFORMATION

When moving the window, there seems to be an animation which is aborted halfway through. I don't know what animation it is, but it seems related. If someone could tell me how to disable it, I'd happily test without.

Comment 1 fanzhuyifan 2024-03-09 16:07:29 UTC

I can't reproduce with the provided steps on 6.0.1, X11, arch linux. This might be a duplicate of BUG 482687, which will be fixed for 6.0.2.

Comment 2 jaskij 2024-03-09 20:50:27 UTC

I'm not entirely sure if this is related to 482687, as I have a panel on the left edge of the screen. Which, now that I check, left side is the *only* side I have a panel on, and this does not happen if I test with quick tiling to other screen edges. Nor does it happen when I maximize a window.

Comment 3 jaskij 2024-03-16 22:37:15 UTC

Tested in 6.0.2, and indeed it's fixed now.