So can you please repair your X configuration with sudo dpkg-reconfigure -phigh xserver-xorg
then enable nvidia with restricted-manager, and then attach /var/log /restricted-manager.log here? If this breaks the BusID again, please repair again with above command. Thank you! -- Restricted Driver Manager adds invalid BusID in xorg.conf in Video-Card section https://launchpad.net/bugs/93075 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs