Plasma/Wayland/Nvidia: Difference between revisions

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Running Nvidia Wayland
Here's how to run with the proprietary Nvidia driver on Wayland:


=== Pre-requisites ===
=== Prerequisites ===
* Ensure that you are using Plasma 5.20.2 or later.
* You need a very up-to-date Qt. Make sure you have >= Qt5.15.0 or [https://code.qt.io/cgit/qt/qtwayland.git/commit/?id=4bd13402f0293e85b8dfdf92254e250ac28094c7 4bd13402f0293e85b8dfdf92254e250ac28094c7] cherry-picked.
* Make sure to have the Nvidia egl library installed. For example on Ubuntu and Neon the relevant package is called <code>libnvidia-egl-wayland1</code>


* You need a very up-to-date Qt. Make sure you have >= Qt5.15.0 or 4bd13402f0293e85b8dfdf92254e250ac28094c7 cherry-picked.
=== Use the modesetting driver===
Check our driver is running in modesettings mode:


=== Mode setting===
<code>cat /sys/module/nvidia_drm/parameters/modeset</code>


Check our driver is running in modesettings mode
It should print "Y". If not, modify your kernel command line and add the line <code>nvidia-drm.modeset=1</code>.
 
Search for "kernel parameters" in your distribution; https://wiki.archlinux.org/index.php/Kernel_parameters is a good starting point.
"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 ===
=== Login ===
* Select "Plasma (wayland)" from your login manager
* Select "Plasma (wayland)" from your login manager
* Enjoy your beautiful super-fast accelerated wayland desktop!
* Enjoy your beautiful super-fast accelerated wayland desktop!

Revision as of 12:11, 27 October 2020

Here's how to run with the proprietary Nvidia driver on Wayland:

Prerequisites

  • Ensure that you are using Plasma 5.20.2 or later.
  • 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

Use the modesetting driver

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.

Login

  • Select "Plasma (wayland)" from your login manager
  • Enjoy your beautiful super-fast accelerated wayland desktop!