Just looking recently in Yast > System > Services Manager
Noticed SDDM was Inactive and Disabled - I thought that strange, given that I am running a Default KDE install (New install, not upgrade)
So, I figure, lets turn it to Enabled / Active.
I reboot and all is fine
Now I toggle it back to where I found it: Inactive/Disabled
And BAM by system basically crashes out.
Force a reboot and login is not possible with Plasma 5
So in to IceWM and turn it back to Enabled/Active
Reboot and login to Plasma 5
So I’m thinking. Can anyone else check if their SDDM setting is like mine was, assuming you have not already messed with it (Which most probably have not)
It is normal that sddm.service is disabled and inactive.
openSUSE uses a general display-manager.service (which should be enabled), this reads /etc/sysconfig/displaymanager and starts the display manager set there (“DISPLAYMANAGER=xxx”).
You should not try to enable sddm.service or any other one. There were even problems with that in the past (should be fixed by now AFAIK though).
If you want to use a different one, edit /etc/sysconfig/displaymanager, either with a text editor or YaST->System->/etc/sysconfig editor.
Oh, and it’s by no way mandatory to use sddm with a KDE installation. You don’t win or loose anything, and can just use anything else if you prefer.
With Plasma5 at least that is, KDE4 does only provide the Restart menu (where you can choose what boot menu entry to boot) with kdm.