Bug 513122

Summary:	Cursor escaping on HELLDIVERS 2 when border-less is set
Product:	[Plasma] kwin	Reporter:	pollux/ned <pollux66>
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	REPORTED ---
Severity:	normal	CC:	nate
Priority:	NOR
Version First Reported In:	6.5.3
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description pollux/ned 2025-12-09 13:37:17 UTC

SUMMARY
When playing HELLDIVERS 2 with borderless the cursor will escape after interacting with the armory button on the ship.

STEPS TO REPRODUCE
1. Play helldivers 2 either under xwayland or wine wayland with normal proton experimental or proton 10
2. Set to borderless in display
3. Enter the armory UI, exit and notice how the cursor can escape to other monitors

OBSERVED RESULT
Cursor escaping

EXPECTED RESULT
Cursor not escaping under borderless mode

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Cachyos
KDE Plasma Version: 6.5.3
KDE Frameworks Version: 6.20.0
Qt Version: 6.10.1

ADDITIONAL INFORMATION

Comment 1 pollux/ned 2025-12-09 13:39:36 UTC

showcase of the cursor escaping

https://limewire.com/d/LQPqt#cEb0P8Ddwq

https://uploadnow.io/files/kWRyhMh

Comment 2 pollux/ned 2025-12-09 13:43:58 UTC

This also happens on the cosmic desktop hmmm weird, i reported this to valve also on the proton github