Bug 422022

Summary:	Black Screen with moveable mouse in Plasma Wayland on any nVidia GPU
Product:	[Plasma] plasmashell	Reporter:	falling_failing_falling
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED FIXED
Severity:	normal	CC:	nate, oguilherme, plasma-bugs
Priority:	NOR
Version:	master
Target Milestone:	1.0
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description falling_failing_falling 2020-05-24 16:22:48 UTC

SUMMARY
Just try to use KDE Plasma Wayland on always lastest KDE neon user stable release and you'll see that you'll even not be able to use KDE Plasma Wayland since you'll get a black screen with a moveable mouse. I didn't tried it on other KDe neon ISOs than the user stable one. 
I followed those two guides to try to make it working.
I set the KWIN_DRM_USE_EGL_STREAMS=1 environment variable from : 
https://community.kde.org/Plasma/Wayland_Showstoppers#NVIDIA
into a .sh file in my plasma workspace environment variable directory.
And I added this kernel flag nvidia-drm.modeset=1 into grub
I tried it both with open source and private nVidia drivers :

Comment 1 Guilherme Silva 2020-06-13 06:48:34 UTC

Are you able to test again on Plasma 5.19.0 + Qt 5.15.0?

I was having the same issue as you're having some time ago, but after the latest updates from Plasma and Qt, at least I got a somewhat "ok-ish" Wayland experience on NVIDIA. Well, let's put it this way: Now I get more than a mouse cursor on a black screen... :)

Comment 2 Nate Graham 2021-03-11 19:15:49 UTC

Yes, please test again. Ideally with Plasma 5.21 which got a ton of NVIDIA-on-Wayland fixes.

Comment 3 falling_failing_falling 2021-03-12 03:43:27 UTC

I just tried it and the latest version seems to work.
So I mark this as resolved.
Continue the good work.

Comment 4 Nate Graham 2021-07-29 16:36:45 UTC

\o/