I manually installed the lastest Nvidia drivers on Ubuntu 12.10 using the files directly from the Nvidia website. Long story short, they don't work, I have an extremely low resolution, and need to go back to nouveau. I can get to the terminal by re-logging in after holding down Ctrl-Alt-F1, how do I purge the proprietary drivers and go back to nouveau?
Navigate to the directory you downloaded the
.run from, then do:
sudo ./NVIDIA-Linux-x86_64-304.60.run --uninstall
If you have a different version, obviously, change the name. Now do:
sudo apt-get install xserver-xorg-video-nouveau sudo rm /etc/X11/xorg.conf
rm might fail; if it does, don't worry about it. It's just to ensure that if Nvidia installed a custom
xorg.conf, you got it out of there.
EDIT: Whoops, didn't see the "from the Nvidia website." Fixed.