same problem for me. the system doesn't start after installing nvidia proprietary driver with jockey (no extra ppa enabled). I've deleted the splash parameter from grub boot record and when the kernel boot up services, I've this error:
"loca fallback graphics devices [failed]" -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/770559 Title: Ubuntu fails to boot with nVidia proprietary driver _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp