Bug 511789

Summary:	Elgato Prompter (Displaylink monitor) wayland glitches
Product:	[Plasma] kwin	Reporter:	Boran <burce.boran>
Component:	wayland-generic	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	kdedev
Priority:	NOR
Version First Reported In:	6.5.2
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Boran 2025-11-07 19:29:29 UTC

SUMMARY

Elgato prompter monitor is giving weird artifacts/glitches on the screen on wayland session.


STEPS TO REPRODUCE
1. Displaylink and evdi-dkms packages are installed from aur.
2.  Monitor is working and booting fine.
3. Move a window to that monitor to see glitches.

OBSERVED RESULT
Lots of display artifacts and weird glitches happening 

EXPECTED RESULT
It should just work without any glitches.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.5.2
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
Kernel Version: 6.17.7-arch1-1 (64-bit)
Graphics Platform: Wayland


ADDITIONAL INFORMATION
See it in action here
https://streamable.com/t74jal

Comment 1 TraceyC 2025-11-14 00:02:33 UTC

Thanks for the bug report. We need a little more information so we can look into this.

1. What graphics card does your system have? If it's NVIDIA, do you have the proprietary or open source drivers installed?
2. Please attach a screen recording directly to this report. The link tells me the video is no longer available.
3. Please provide the output of the following, run in a terminal:

kscreen-doctor -o

Thanks.

Comment 2 TraceyC 2025-11-14 00:02:50 UTC

Comment 3 Bug Janitor Service 2025-11-29 03:46:07 UTC

🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!

Comment 4 Bug Janitor Service 2025-12-14 03:46:12 UTC

🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.