Plasma wayland session cant login

[yuanhao]

Just install plasma-wayland-session on my EndeavourOS desktop, I select the wayland session on login, type my passward, and it goes black screen then return back to the login screen, xorg is still working…

whats the problem?

If it is useful, I find this:

-> bsh > cat ~/.local/share/sddm/wayland-session.log
Error: could not determine $DISPLAY.
Error: Can not contact kdeinit5!
org.kde.startup: "kdeinit5_shutdown" () exited with code 255
startplasma-wayland: Shutting down...
startplasmacompositor: Shutting down...
startplasmacompositor: Done.

I am using latest packages on system, RTX 3080Ti, and CPU is intel i7

[pebcak]

A neither KDE nor Nvidia user here but from ArchWiki:

To enable support for Wayland in Plasma, also install the plasma-wayland-session package. If you are an NVIDIA user, also install egl-wayland if it is not already installed, and if the session does not start with the proprietary nvidia driver, also enable the DRM kernel mode setting. If that does not work, too, check the instructions on the KDE wiki.

https://wiki.archlinux.org/title/KDE

Do you have egl-wayland installed?

If that alone won’t solve the issue, you might need to add:

nvidia_drm.modeset=1

to your kernel parameters (https://wiki.archlinux.org/title/Kernel_parameter).

[yuanhao]

egl-wayland is installed, however nvidia_drm.modeset=1 is not added, which solves the problem. Thanks!

[pebcak]

That’s great! Glad you could resolve the issue!