Or is the message really something else?
Can you start X from "tty" (startx)?
I'm thinking you accidentally messed up so X cannot be started.
In "tty" do
Code: Select all
sudo nano /etc/X11/xorg.conf
If not change it and hopefully you can log in.
Vesa is a "always working but sloppy" driver
Envy usually works well - but you could try the "Restricted manager"