Plasma/Wayland/Nvidia: Difference between revisions
(Restore a limitation, I was wrong when I removed it) |
(Update to make relevant for Plasma 6 and explicit sync times) |
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To use the Plasma Wayland session: | To use the Plasma Wayland session: | ||
* | * Use an up-to-date version of Plasma (explicit sync support was implemented in 6.1) | ||
* Ensure | * Ensure a reasonably new NVIDIA driver: | ||
* You need | ** minimum supported by KWin is 495.44; | ||
** XWayland apps are usable with 555 and newer. | |||
* You need to have the Nvidia EGL library installed. It can be a separate package (<code>libnvidia-egl-wayland1</code>) or bundled with the driver package (e.g. `nvidia-gl-G06` on openSUSE since 555). | |||
* To run XWayland apps without flickering, at least XWayland 24.1 is required. | |||
* XWayland | |||
=== Use the modesetting driver=== | === Use the modesetting driver=== | ||
Check | Check whether the driver is running in modesetting mode: | ||
<code>cat /sys/module/nvidia_drm/parameters/modeset</code> | <code>cat /sys/module/nvidia_drm/parameters/modeset</code> | ||
It should print | It should print “Y”. If not, modify your kernel command line and add the line <code>nvidia_drm.modeset=1</code>. | ||
Search for | Search for “kernel parameters” in your distribution; https://wiki.archlinux.org/index.php/Kernel_parameters is a good starting point. | ||
It is also possible to pass the parameter via module configuration: | It is also possible to pass the parameter via module configuration: | ||
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=== Login === | === Login === | ||
* Select | * Select “Plasma (Wayland)” from your login manager | ||
* Enjoy your beautiful super-fast accelerated | * Enjoy your beautiful super-fast accelerated Wayland desktop! | ||
=== Known Limitations === | === Known Limitations === | ||
* Night Color is not applied to the mouse cursor: https://bugs.kde.org/show_bug.cgi?id=479889 | * Night Color is not applied to the mouse cursor: https://bugs.kde.org/show_bug.cgi?id=479889 | ||
* Poor performance on external screens on hybrid GPU setups when using NVIDIA GPU as a secondary GPU because it requires CPU copying from the primary GPU to the secondary GPU (see https://invent.kde.org/plasma/kwin/-/merge_requests/1031, https://bugs.kde.org/show_bug.cgi?id=452219) | * Poor performance on external screens on hybrid GPU setups when using NVIDIA GPU as a secondary GPU because it requires CPU copying from the primary GPU to the secondary GPU (see https://invent.kde.org/plasma/kwin/-/merge_requests/1031, https://bugs.kde.org/show_bug.cgi?id=452219) | ||
Revision as of 15:06, 28 September 2024
Here's how to run with the proprietary Nvidia driver on Wayland:
Prerequisites
To use the Plasma Wayland session:
- Use an up-to-date version of Plasma (explicit sync support was implemented in 6.1)
- Ensure a reasonably new NVIDIA driver:
- minimum supported by KWin is 495.44;
- XWayland apps are usable with 555 and newer.
- You need to have the Nvidia EGL library installed. It can be a separate package (
libnvidia-egl-wayland1) or bundled with the driver package (e.g. `nvidia-gl-G06` on openSUSE since 555). - To run XWayland apps without flickering, at least XWayland 24.1 is required.
Use the modesetting driver
Check whether the driver is running in modesetting 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.
It is also possible to pass the parameter via module configuration:
echo options nvidia_drm modeset=1 | sudo tee /etc/modprobe.d/nvidia_drm.conf
You need to regenerate the initramfs in case your distribution provides the graphics drivers in initramfs (e.g. sudo update-initramfs -u)
Login
- Select “Plasma (Wayland)” from your login manager
- Enjoy your beautiful super-fast accelerated Wayland desktop!
Known Limitations
- Night Color is not applied to the mouse cursor: https://bugs.kde.org/show_bug.cgi?id=479889
- Poor performance on external screens on hybrid GPU setups when using NVIDIA GPU as a secondary GPU because it requires CPU copying from the primary GPU to the secondary GPU (see https://invent.kde.org/plasma/kwin/-/merge_requests/1031, https://bugs.kde.org/show_bug.cgi?id=452219)