Dear Robert.
After installing 13.1 on a netbook I am getting some startup weirdness in that lightdm is not started :(I can get to a VT Ctrl-Alt-F_ and I checked /etc/sysconfig/displaymanager, it is set to lightdm. Default run level is set to 5. systemd starts Xorg, at least according to the message in verbose boot. The symptom is that the box just sits there after the last systemd message and nothing happens.
This is a known bug. You might want to take a look at the ML archive. From what I know, there is no solution available, yet (besides switching to e.g. xdm).
Greets Marcus
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