https://bugs.kde.org/show_bug.cgi?id=460277
Bug ID: 460277
Summary: Window appears before animation plays
Classification: Plasma
Product: kwin
Version: git-stable-Plasma/5.26
Platform: Neon
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: effects-present-windows
Assignee: kwin-bugs-n...@kde.org
Reporter: c...@simonschneegans.de
Target Milestone: ---
SUMMARY
This has been first reported here:
https://github.com/Schneegans/Burn-My-Windows/issues/223
The Burn-My-Windows effects from the KDE store () do not show or hide a window
correctly on KWin 5.26 (it used to work on 5.25). Opening a new Window has the
Window appear, play the animation and then redraw the window. Closing a Window
has the the animation play over the Window before the Window disappears.
As nothing changed in the effect's code, I suspect that this is somehow a
regression in KWin.
STEPS TO REPRODUCE
1. Install an effect such as this one: https://store.kde.org/p/1884307
2. Open Window
3. Observe Window appears, animation plays over it, Window flickers and then is
redrawn
4. Close Window
5. Animation plays over Window, only then does it disappear instead of as the
animation plays
OBSERVED RESULT
The window is show before the opening-animation plays and stays fully visible
during the close-animation.
EXPECTED RESULT
The window should be shown gradually during the open-animation and gradually
hidden during the close-animation.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE Neon
KDE Plasma Version: 5.26.80
KDE Frameworks Version: 5.100.0
Qt Version: 5.15.6
ADDITIONAL INFORMATION
This has also been observed on Fedora Rawhide and KWin 5.25.90.
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