https://bugs.kde.org/show_bug.cgi?id=456860
Bug ID: 456860
Summary: Preview tooltips leave flickering artifacts when
cycling through them too quickly on X11
Product: plasmashell
Version: 5.25.3
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Task Manager and Icons-Only Task Manager
Assignee: plasma-b...@kde.org
Reporter: dustintownsen...@protonmail.com
Target Milestone: 1.0
Created attachment 150706
--> https://bugs.kde.org/attachment.cgi?id=150706&action=edit
Tooltips artifacting and flickering (flipping enabled)
SUMMARY
On X11, with nvidia hardware, when quickly moving the mouse across icons in the
task manager, frequently, an artifact of one of the preview tooltips will be
left behind. As far as I can tell, with "Allow Flipping" enabled in
nvidia-settings, the resulting artifacts will flicker (to be clear, this issue
is present outside of the recording, so that option is not interfering with the
recording). With "Allow Flipping" disabled, they are static.
I was unable to replicate this bug when cycling through icons that did not have
a window preview in their tooltip (i.e. applications that aren't open). It
primarily seems to occur when transitioning from a tooltip with a window
preview (particularly large tooltips displaying multiple window previews) to
one without. I haven't tested to see if this issue is present on non-nvidia
hardware.
STEPS TO REPRODUCE
1. Open some applications on the task manager
2. Quickly move the mouse between icons on the task manager
OBSERVED RESULT
Artifacts of the tooltips are left behind, and will flicker with flipping
enabled.
EXPECTED RESULT
There should be no artifacts of the tooltips.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux 5.18.12-zen1-1-zen, Plasma 5.25.3
KDE Plasma Version: 5.25.3
KDE Frameworks Version: 5.96.0
Qt Version: 5.15.5
ADDITIONAL INFORMATION
Nvidia driver version: 515.57
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