Arch Linux

karolproksa

Member

Registered: 2021-04-12

Posts: 16

KDE Wayland support for two monitors with Nvidia GPU

Hello, I've just started using KDE Plasma and wanted to use Wayland instead of X11, because it's so much smoother. I have a laptop with Nvidia RTX 2070 and an external monitor, which I want to also use. The problem is that I can't find a way to make Wayland work on both built-in laptop display and the external monitor. I'm sure that it is a problem with Wayland because on X11 both work correctly. Is there a way to make it work in Wayland?
If not, is there a way to make the experience as smooth on X11? I'm running a fresh install of Arch Linux with KDE Plasma 5.21.4. On X11 the compositor uses OpenGL 3.1.
I'm using the newest proprietary drivers.
Thanks in advance!

ender4

Member

Registered: 2011-01-11

Posts: 16

Re: KDE Wayland support for two monitors with Nvidia GPU

I have the same issue. My external display over HDMI works with KDE in X11, but not wayland. I'm running Plasma 5.21.5 and the newest proprietary nvidia drivers. My graphics is in "hybrid mode" on a Lenovo P50. I'm not really sure where to look for more info on what is  going on. Since it is specific to wayland, it's probably somewhere in KDE. xrandr isn't useful in wayland. Are there some KDE logs I could look at somewhere?

glindner

Member

Registered: 2016-10-14

Posts: 13

Re: KDE Wayland support for two monitors with Nvidia GPU

I have the exact same problem, on a Lenovo Y740 (RTX 2070). External monitor works on X11, and doesn't work on wayland.
Tested with a fresh installation using Nvidia drivers 470.63.01-11 and Plasma 5.22.5-1.