https://bugs.kde.org/show_bug.cgi?id=358610
Bug ID: 358610
Summary: alt-tab dialog flickers if aborted during animation
and "Show selected window" is enabled
Product: kwin
Version: 5.5.3
Platform: Archlinux Packages
URL: https://www.reddit.com/r/kde/comments/31s438/plasma_52
_flickering_on_short_alttab/
OS: Linux
Status: UNCONFIRMED
Severity: minor
Priority: NOR
Component: effects-tabbox
Assignee: kwin-bugs-n...@kde.org
Reporter: flore...@gmail.com
When "Show selected window" is enabled under system settings, weird artifacts
can be observed on the alt-tab switcher. They seem to happen all the time when
you don't let the switcher finish animating before releasing alt-tab, and also
seem to happen if you release alt-tab while the slide animation of the box is
happening
This seems to have been a problem since at least Plasma 5.2, and doesn't seem
to depend heavily on drivers or other specific configuration (see attached
reddit thread)
It is most noticeable on the Breeze switcher, but does appear to happen on
other similar style switchers too (large thumbnails, details). Turning off
"Show selected window" seems to completely fix the problem for me.
Reproducible: Always
Steps to Reproduce:
1. Press alt-tab quickly, slow enough that the dialog appears, but quick enough
that it doesn't fully fade in
- OR -
2. Press alt-tab normally, cycle through windows, while the highlighted window
is changing, release alt-tab
Actual Results:
The alt-tab switcher fades out a bit, then fades in, then fades out. Happens
very quickly, so it looks like flickering.
Expected Results:
The alt-tab switcher smoothly fades out
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