Bug 489701

Summary:	A copy of the mouse cursor gets left behind on desktop, when moving between monitors
Product:	[Plasma] kwin	Reporter:	andreas.schmeja
Component:	multi-screen	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	minor	CC:	kde, nate
Priority:	NOR	Keywords:	multiscreen, wayland-only
Version First Reported In:	6.1.1
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	External recording of the effect occurring

Description andreas.schmeja 2024-07-03 20:25:37 UTC

SUMMARY
When moving the mouse between displays sometimes a copy of the cursor gets left behind on the previous display
The copy disappears after a while 
This does not happen when a window is touching the edge, but only directly on the desktop

This is only a visual effect and the mouse remains usable
The effect does not appear on screen recordings
I am using a Lenovo USB Dock to connect to the monitors


STEPS TO REPRODUCE
1. Use a laptop with two monitors connected through a DisplayLink USB-Dock
2. Move mouse between two screens


OBSERVED RESULT
A copy of the cursor remains on the previous screen


EXPECTED RESULT
The cursor passes to the other screen without leaving a copy behind


SOFTWARE/OS VERSIONS
Operating System: ArcoLinux 
KDE Plasma Version: 6.1.1
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.2
Kernel Version: 6.9.4-1-cachyos (64-bit)
Graphics Platform: Wayland



ADDITIONAL INFORMATION
I use the displaylink and evdi AUR packages
I have not yet tested this without using a DisplayLink dock
I am using a Lenovo ThinkBook with integrated AMD Graphics

Comment 1 andreas.schmeja 2024-07-03 20:28:17 UTC

Created attachment 171345 [details]
External recording of the effect occurring

Comment 2 David Edmundson 2025-09-23 10:51:50 UTC

I cannot reproduce.
Can you confirm if this is still an issue, on Plasma 6.5 and reopen if so.