Bug 454518

Summary:	Fall Apart effect flashes at the end
Product:	[Plasma] kwin	Reporter:	John <ilikefoss>
Component:	effects-various	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	minor	CC:	ilikefoss, nate
Priority:	NOR
Version First Reported In:	5.24.90
Target Milestone:	---
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description John 2022-05-28 07:00:03 UTC

SUMMARY
Fall Apart effect flashes at the end of animation


STEPS TO REPRODUCE
1. Switch to the Wayland session
2. Enable the "Fall Apart" effect
3. Open and close some windows

OBSERVED RESULT
After the animation finishes with the window being broken into pieces, it flashes one more time allowing you to see the exact window that you closed for a very short period of time

EXPECTED RESULT
The Fall Apart effect works normally with the window breaking into pieces without flashing it again

SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
KDE Plasma Version: 5.24.90
KDE Frameworks Version: 5.95
Qt Version: 5.15.4

ADDITIONAL INFORMATION
From: neon-testing-20220524-1822.iso +  all updates from Discover
Tested on Wayland

Comment 1 John 2022-05-28 07:45:42 UTC

I think I found a way to make it even worse.
If the window that you close was in fullscreen mode it will just flash for a moment at the end of the animation as I said above.
But if you keep the window  as it was when it opened first time or restore it from fullscreen one to the windowed mode, then close it and immediately move the mouse left right or in a circle where the window was positioned, you can see it flicker again.
In my case I can see it flicker again as soon as I move the mouse.
If I stop it disappears and if I move it again it starts flickering gain.
If flickers frequent enough that I even tried to click on its close button, but it doesn't work or click and drag the title bar.
Clicking also doesn't stops it to flicker, but if I drag a selection rectangle on the desktop, the it stops  and disappears completely.

Comment 2 Nate Graham 2022-06-01 17:32:17 UTC


*** This bug has been marked as a duplicate of bug 454243 ***