https://bugs.kde.org/show_bug.cgi?id=466660
Bug ID: 466660
Summary: KWin Big Icons TabBox jitters when notifications
arrive
Classification: Plasma
Product: kwin
Version: git master
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: tabbox
Assignee: kwin-bugs-n...@kde.org
Reporter: m...@ratijas.tk
Target Milestone: ---
Created attachment 156878
--> https://bugs.kde.org/attachment.cgi?id=156878&action=edit
Wide tabbox jitters
SUMMARY
There a slight and brief jitter in horizontal window size of a tabbox if it is
opened while a notification arrives.
Happens with both with Alt + ` shortcut which shows windows of current
applications and Alt + Tab which shows all applications.
Note that it only happens with wide tabbox, filled beyond its implicit/default
width. Shorter tabboxes are not affected. It seems like it instantiates, and
then deletes an extra tile delegate.
STEPS TO REPRODUCE
1. Open enough windows/apps to make tabbox stretch beyond implicit/default
size.
2. Press Alt+Tab and hold Alt.
3. Get a notification (you can ask friends or send yourself with
> sleep 5; notify-send --icon=system-help --app-name=MyApp "Custom
Notification"
OBSERVED RESULT
TabBox becomes wider for a split second, and then returns to normal.
EXPECTED RESULT
TabBox should not be affected by notifications.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: git/Plasma5
KDE Frameworks Version: git/kf5
Qt Version: 5.15.8
Kernel Version: 6.2.1-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-6700HQ CPU @ 2.60GHz
Memory: 15.6 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 970M/PCIe/SSE2
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