Plasma/Wayland/Nvidia
Running Nvidia Wayland
Pre-requisites
- You need a very up-to-date Qt. Make sure you have >= Qt5.15.0 or 4bd13402f0293e85b8dfdf92254e250ac28094c7 cherry-picked.
- Make sure to have the Nvidia egl library installed. For example on Ubuntu and Neon the relevant package is called
libnvidia-egl-wayland1
Mode setting
Check our driver is running in modesettings mode
cat /sys/module/nvidia_drm/parameters/modeset
It should print "Y"
If not, modify your kernel command line and add the line nvidia-drm.modeset=1.
Search for "kernel parameters" in your distribution
https://wiki.archlinux.org/index.php/Kernel_parameters is a good starting point
Tell kwin to run with EGLStreams.
You should set the environment variable "KWIN_DRM_USE_EGL_STREAMS=1"
The easiest place is to add a file /etc/profile.d/kwin.sh with the line
export KWIN_DRM_USE_EGL_STREAMS=1
Verify this is working with the command line tool env after rebooting.
Login
- Select "Plasma (wayland)" from your login manager
- Enjoy your beautiful super-fast accelerated wayland desktop!