I installed the KDE version of 5.0. I then did the notification updates, there were over 700 of them. In the morning I reboot after DL's done. The login screen shows, I put in my password and the input boxes go away, then come back after the screen goes dark. It loops. i enter password, login, but it doesn't login, just black screen for 1 second and then back to login screen.
Any one have any idea how to resolve this short of reformatting?