Hi! My problem is, that when I restart (or boot) my laptop, more often than not, at the moment when I expect SDDM to appear, a black screen pops-up with an underscore (or underline _ ) and that’s it. When I enter tty, I can login, restart my computer and after 3-4 tries SDDM finally shows. The only thing that I do in tty is just login, ask for root and then reboot. I am suspecting maybe that something doesn’t start in time (due to SSD) and sometimes I am just lucky. How can I solve this?
As I mentioned in the first one, there’s only one such problem I experienced myself: SDDM hangs with a black screen if Autologin is turned on and the configured session (in /etc/sddm.conf) does not exist (the default is hardcoded to Plasma5 in openSUSE).
I filed an upstream bug report about this: https://github.com/sddm/sddm/issues/497
But that can’t really be your problem, as this should happen every time, not randomly…
Well, the mentioned “issue 497” is still present in the KDE:Frameworks5 version, and in latest upstream git AFAICT.
That would also be easily workarounded by setting an existing session in /etc/sddm.conf or systemsettings5’s sddm module, and is really only a problem if you try to use sddm in a minimal (or GNOME e.g.) installation without Plasma5 installed…
So your problem seems not to have been that, but as upgrading helped, it might help the OP too, I suppose.
Thanks for that, it works now. I upgraded the SDDM to 0.12.0 (with Frameworks5 repo) and locked updates for this package for now and when the new version comes in the official tumbleweed repo, I will remove the F5 repo.