https://bugs.kde.org/show_bug.cgi?id=484134
Bug ID: 484134
Summary: Quick Alt+Tabbing has a big delay when the QML tab
switcher visualisation is enabled
Classification: Applications
Product: systemsettings
Version: 6.0.2
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: kcm_kwintabbox
Assignee: kwin-bugs-n...@kde.org
Reporter: szots...@gmail.com
CC: plasma-b...@kde.org
Target Milestone: ---
SUMMARY
***
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***
Previously, in KDE 5, when I pressed Alt+Tab+Tab very quickly (and released
it), then I have the second window in front of me, effectively immediately.
Now, in KDE 6, after the same sequence, I have a ~700 ms delay before the
window is shown and after that the tab box visualisation is even flashed for
some ms (basically, just its borders are drawn, its content I can't see because
it disappears very quickly).
Simple Alt+Tab is also very slow and suffers from the same.
If I turn off the tab box visualisation in system settings, this delay is gone.
This is the default tab switcher which comes with KDE 6 (first item in the
list; I have it in another language).
EXPECTED RESULT
Either the tab switcher is displayed immediately and introduces no delay or not
displayed at all and, again, introducing no delay.
SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20240318
KDE Plasma Version: 6.0.2
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Kernel Version: 6.7.9-1-default (64-bit)
Graphics Platform: X11
Graphics Processor: NVIDIA GeForce RTX
System Version: 1.0
ADDITIONAL INFORMATION
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