I upgraded to oneiric. When my machine boots, I get a black console with text messages listing the services that are starting up, and then my machine sits there in that state and lightdm never comes up. I am able to log in by doing control-alt-F1, logging in, and doing a startx by hand.
I tried switching from lightdm to gdm, but that hasn't helped either.
I tried doing
sudo start gdm but it tells me that gdm is already running.
Any suggestions on how to fix this? Thanks.
My video card is nvidia:
$ lspci | grep VGA 02:00.0 VGA compatible controller: nVidia Corporation GT216 [GeForce GT 220] (rev a2)