Plasma/Wayland/Nvidia: Difference between revisions

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!

@@ Line 1: / Line 1: @@
-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>
-=== Mode setting===
+=== Use the modesetting driver===
+Check our driver is running in modesettings mode:
-Check our driver is running in modesettings mode
 <code>cat /sys/module/nvidia_drm/parameters/modeset</code>
-It should print "Y"
+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.
-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
-=== 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 <code>/etc/profile.d/kwin.sh</code>  with the line
-<code>export KWIN_DRM_USE_EGL_STREAMS=1</code>
-Verify this is working with the command line tool <code>env</code> after rebooting.
 === Login ===
 * Select "Plasma (wayland)" from your login manager
 * Enjoy your beautiful super-fast accelerated wayland desktop!