https://bugs.kde.org/show_bug.cgi?id=522003
Bug ID: 522003
Summary: Brief flash of window contents when moving mouse into
Task Manager
Classification: Plasma
Product: plasmashell
Version First 6.7.0
Reported In:
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Task Manager and Icons-Only Task Manager widgets
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: 1.0
DESCRIPTION
Since upgrading to Plasma 6.7.0, I often see a brief flash of window contents
when moving the mouse into the Task Manager area from the left or right (short
edges).
STEPS TO REPRODUCE
1. Login to an X11 Plasma 6.7 session as a user with default settings (so, with
a horizontal Task Manager at the bottom of the screen)
2. Right-click on the Task Manager area and choose Configure Task Manager
3. Enable "Hide other windows when hovering over previews" (this seems to be
necessary) and Apply
4. Open some windows and minimise them, enough to fill the Task Manager
5. Hover the mouse over the icon to the left of the Task Manager, e.g. the
Virtual Desktops switcher or the Application Launcher icon, *or* hover the
mouse of the icon to the right of the Task Manager, e.g. the Notifications icon
in the system tray, until its tooltip appears
6. Quickly move the mouse either right or left so it's hovering over the icon
representing a running program (this doesn't happen every time)
OBSERVED RESULT
The contents of the window that you move the mouse to briefly flash onto the
screen, before disappearing.
EXPECTED RESULT
Window contents do not appear with these mouse movements.
SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20260618
KDE Plasma Version: 6.7.0
KDE Frameworks Version: 6.27.0
Qt Version: 6.11.1
Kernel Version: 7.1.0-1228-gff5ccdb8d5bd-1.g586796e-vanilla (64-bit)
Graphics Platform: X11
ADDITIONAL INFORMATION
Note that this only seems to occurs with X11, not Wayland, and only with the
"Hide other windows when hovering over previews" setting enabled. The window
contents that briefly show up are the same that would appear if you hover the
mouse on the preview, but in this case I'm not moving the mouse into that area
at all.
This seems to be new with Plasma 6.7. I'm sure it didn't happen previously and
I noticed it within seconds of first using 6.7 so I'm sure I would have noticed
it before.
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