Sddm: Failed to read display number from pipe (desktop doesn't start on it's own anymore)

Support KDE Plasma
2

okey, I wanted to switch sddm to wayland anyway so I did that and now it works again.

(did it by following the instructions found here: Make SDDM itself run on Wayland - Support / KDE Plasma - Manjaro Linux Forum which I guess have been taken from SDDM - ArchWiki)

create file /etc/sddm.conf.d/10-wayland.conf
with content:

[General]
DisplayServer=wayland
GreeterEnvironment=QT_WAYLAND_SHELL_INTEGRATION=layer-shell

[Wayland]
CompositorCommand=