Comment # 29 on bug 1013200 from Patrick Schaaf

I reinstalled once more this morning, with the goal to find out why I did not
see the blank screen issue immediately after install, but only after I dupped
with update repos (and a private repo with some stuff unrelated to X, but
nevertheless bringing in some systemd units on my own. And I used an autoyast
install that I've been working on the last days, instead of a plain manual
installer.

Anyway, really strange result is, that I can no longer reproduce the blank
screen issue. It was fine after autoyast (including update repos), it stayed
okay when I successively added my own stuff, and it even keeps working file
after reenabling plymouth again.

Comparing package lists to the previous nonworking installs, confirms to me
that I did not miss anything that might be related.

All that without a modified display-manager.service, and ps always confirmed
that sddm+X started clearly BEFORE systemd-logind (4.5 seconds, in the current
boot).

So... I once more don't know what was going on here... and an on-suspicion
addition of After=systemd-logind in display-manager.service is probably not
warranted at the moment.