Ubuntu 12.04 terminal only after nvidia driver upgrade

  1. After you've booted, press Ctrl+Alt+F1, and login using your credentials.

  2. Remove all the nVidia drivers that you installed.

    sudo apt-get --purge remove nvidia-*
    
  3. Install the drivers again:

    sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
    sudo apt-get update
    sudo apt-get install nvidia-current nvidia-settings