Bug 474783 - Task switcher has empty windowClass and is wrongly animated by window open/close effects
Summary: Task switcher has empty windowClass and is wrongly animated by window open/cl...
Status: RESOLVED DUPLICATE of bug 457913
Alias: None
Product: kwin
Classification: Plasma
Component: tabbox (other bugs)
Version First Reported In: 5.27.8
Platform: Arch Linux Linux
: NOR minor
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords: wayland-only
Depends on:
Blocks:
 
Reported: 2023-09-22 07:59 UTC by Kirikaze Chiyuki
Modified: 2025-07-10 10:43 UTC (History)
2 users (show)

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Description Kirikaze Chiyuki 2023-09-22 07:59:24 UTC 
SUMMARY

STEPS TO REPRODUCE
1. Alt+Tab in Plasma Wayland session

OBSERVED RESULT
Task switcher shows without window opening / closing animation

EXPECTED RESULT
Task switcher is animated and its windowClass is an empty string ("")
(Adding the empty string to the "blacklist" of window open / close effect scripts may also cause other problems ..? untested)

SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.10
Comment 1 Nate Graham 2023-09-22 20:43:58 UTC 
Can confirm. Possibly also the cause of Bug 457913?
Comment 2 Vlad Zahorodnii 2025-07-10 10:43:58 UTC 

*** This bug has been marked as a duplicate of bug 457913 ***