Bug 459357

Summary:	New "Slide virtual desktops" is too slow and causes render bugs
Product:	[Plasma] kwin	Reporter:	ppelikan
Component:	effects-window-management	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	nate, ppelikan
Priority:	NOR
Version First Reported In:	5.25.5
Target Milestone:	---
Platform:	Manjaro
OS:	Linux
URL:	https://www.youtube.com/watch?v=9qMFfbyl5L8
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description ppelikan 2022-09-18 22:22:55 UTC

SUMMARY
After system update, switching virtual desktops became very slow.
Possibility to change it's speed has disappeared.
Some windows are being improperly displayed during switching between virtual desktops.

(Please see attached video link)

STEPS TO REPRODUCE
1. (Optional step) run Conky or other window overlay app,
2. Turn on the "Slide desktops when switching virtual desktops" animation option,
3. Try to switch virtual desktops.

OBSERVED RESULT
Animation is very slow. (Much slower than in previous KDE version.)
There is no option to change it's speed. 
Overlay windows such as Conky are being displayed on top of other windows during animation.

EXPECTED RESULT
Slide animation should have option to customize it's duration.
Rendering overlay windows should be the same during animation as during normal operation.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Manjaro KDE
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.97.0
Qt Version: 5.15.5

ADDITIONAL INFORMATION
Video link:
https://www.youtube.com/watch?v=9qMFfbyl5L8

Comment 1 Nate Graham 2022-09-21 20:32:58 UTC


*** This bug has been marked as a duplicate of bug 455450 ***