So what went wrong, exactly?
When I installed fedora 21 alpha a while back, I was able
to get my nvidia GTX 750 Ti to work fairly well with binary
drivers from rpmfusion.
I've just re-installed 21 from the workstation live iso,
and all I can get with a fresh install is the screen that
says "Oh no something has gone wrong!".
So X is working well enough to display that screen, but
it would be nice to know what has gone wrong (and, of
course, I have no useful log files since systemd has
hidden all info behind cryptic binary files now).
Any clues how to investigate this?