Please refer to the instructions in my Sticky:
Originally Posted by Moldy11
Sticky: [all variants] Graphics Resolution- Upgrade /Blank Screen after reboot
Goto the first-half of Post #3...
That should get you into an install with graphics. (If not tell me.)
After the install-
Temporarily Editing Grub Menu for Boot Options
Then, after booting to the desktop, go to Additional Drivers to install your driver. If you don't see your driver, open a terminal session and
And uncomment the two "Conical Partner" lines, save and exit.
gksudo gedit /etc/apt/sources.list