Bug 513772

Summary:	New Window Taskbar Icon Appears on All Screens in Multi-Monitor
Product:	[Plasma] plasmashell	Reporter:	Yiqun Lian <chensudago>
Component:	Task Manager and Icons-Only Task Manager widgets	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	REPORTED ---
Severity:	normal	CC:	qydwhotmail
Priority:	NOR
Version First Reported In:	6.5.4
Target Milestone:	1.0
Platform:	NixOS
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Yiqun Lian 2025-12-24 07:50:09 UTC

When launching any application on a multi-monitor setup in KDE, the app briefly appears in the taskbar on all screens, even though the setting is configured to show windows only on the current screen. The taskbar icon disappears correctly once the app window fully launches.

STEPS TO REPRODUCE

Set KDE taskbars to “Show only windows from the current screen.”

Connect a multi-monitor setup.

Launch any application.

OBSERVED RESULT
The app briefly appears in the taskbar on all screens before disappearing from the others.

EXPECTED RESULT
The app should only appear in the taskbar of the screen where it was launched.