I'm having a problem after the upgrade attempts, no luck. Upgrading an up-to-date Kali 1.1 to 2.0. but hey, I'd like to get it fixed just ~because~.

This may not help anyone, but here's what I'm seeing.

Attempting to boot gets me to a grey frowzy face screen:
Oh no! Something has gone wrong.
A problem has occurred and the system can't recover.
Please log out and try again.
I have two cards installed
After reading the X.org error I found that there is an error which is "No screens found", I've tried uninstalling the gdm3 and the xorg.conf but nothing happened.