1.) Do you happen to have bumblebee installed ? Try to remove bumblebee with purge option. sudo apt-get remove --purge bumblebee*
If it is not install check in folder /etc/modprobe.d for file bumblebee.conf. If exists delete it (contains blacklist option for nvidia) rm -f /etc/modprobe.d/bumblebee.conf Bumblebee blacklists nvidia driver. After that install nvidia-331 driver and nvida-prime package: sudo apt-get install nvidia-331-updates nvidia-prime Reboot -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1300669 Title: X Server fails to start with nvidia-331 in 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1300669/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
