Help is needed with testing new sddm. Upstream is working on getting sddm completely ready for wayland, an early build with those changes is now up in the build repo.
What is not available anywhere yet is file to set the needed startup parameters, so one is created for KaOS.
It is working here to select either a regular Plasma (X11 based) session, or using the drop-down menu in the sddm greeter to select Wayland.
Current build of sddm does not have a fully correct .desktop for it, but rebuilds today give a non-working sddm altogether.
To have the option in your sddm to start wayland, make sure to merge /etc/sddm.pacnew.conf into /etc/sddm.conf (it has the new needed wayland settings).
Plus you need to edit wayland.desktop:kdesu kate /usr/share/wayland-sessions/wayland.desktop
And make it look like this:[Desktop Entry]
Encoding=UTF-8
Type=wayland-session
Exec=/usr/bin/startplasmacompositor
TryExec=/usr/bin/startplasmacompositor
DesktopNames=KDE
Name=Wayland
Comment=Wayland session by KDE
X-KDE-PluginInfo-Version=5.3.95
Kinit & kwin were rebuild for this, it needed changes to OOM settings, testing is now needed if those are correct changes, or if that brings regressions.
