Bug 514732

Summary: Position of output of dp-1 is negative, that is not supported
Product: [Plasma] KScreen Reporter: Daniel Mulheron <duzean95>
Component: commonAssignee: kscreen-bugs-null <kscreen-bugs-null>
Status: REPORTED ---    
Severity: normal CC: ngoquang2708, teelarr, thlpeters2, yesox126
Priority: NOR    
Version First Reported In: 6.5.5   
Target Milestone: ---   
Platform: CachyOS   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Kpackages that updated
Rest of the packages that updated

Description Daniel Mulheron 2026-01-17 11:44:54 UTC
Created attachment 188615 [details]
Kpackages that updated

SUMMARY
I'm trying to disable 1 of my montiors and I'm getting the following message when I do "Position of output of dp-1 is negative, that is not supported". Issue only emerged during my most recent updates. I've attached all packages that changed/updated

STEPS TO REPRODUCE
1.  Update to latest KDE release
2.  Go to settings -> display & monitor -> 
3.  Untick enabled on the monitor

OBSERVED RESULT
Monitor doesn't disable. Settings menu is unable to proceed further and must be closed and re-opened. I'm able to rotate and change position with no issue

EXPECTED RESULT
Monitor turns off allowing for independant control by second device

SOFTWARE/OS VERSIONS
Operating System: CachyOS Linux 
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.1
Kernel Version: 6.18.5-1-cachyos-bore (64-bit)
Graphics Platform: Wayland
Processors: 12 × Intel® Core™ i7-8700 CPU @ 3.20GHz
Memory: 16 GiB of RAM (15.5 GiB usable)
Graphics Processor: NVIDIA GeForce RTX 3060 Ti

ADDITIONAL INFORMATION
Reverting back to previous update allows for monitor to be disabled on command
Comment 1 Daniel Mulheron 2026-01-17 11:45:22 UTC
Created attachment 188616 [details]
Rest of the packages that updated
Comment 2 yesox126 2026-01-18 05:27:58 UTC
Issue can be replicated

SOFTWARE/OS VERSIONS
Operating System: CachyOS Linux 
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.1
Kernel Version: 6.18.5-2-cachyos
Graphics Platform: Wayland
Processors: AMD Ryzen 7 7800X3D (16) @ 4.20 GHz
Memory: 32 GiB of RAM 
Graphics Processor: AMD Radeon RX 9070 [Discrete]
Comment 3 thlpeters2 2026-01-19 19:59:11 UTC
Can confirm, wasn't able to enable a DP-1 connection to my computer over SSH this morning, had to downgrade most of my system packages associated with kde
Comment 4 teelarr 2026-01-21 02:11:07 UTC
Can repro this on Fedora 43 on Wayland. 

Plasma 6.5.5
Frameworks 6.22.0
Qt 6.10.1
Kernel 6.18.5