I upgraded to 15.04, now my GUI is blank when booting regular.
But I'm able to boot the GUI while selecting rescue mode.
apt-get update && apt-get-upgrade
Says everything is up 2 date
I have a Nvidia GeForce GT 740
Help would be highly appreciated!
Update:
I was able to switch to onboad card and rerun the Nvidia installer, I also tried to enable the sddm service (as other recommended)
sudo systemctl enable sddm.service -f
sudo reboot
Also tried to boot without splash and quiet boot option
But now I'm sticking with a blank dark screen.