This is caused by Nvidia driver and Hauppauge 1600 being in the same system.
Updating /etc/default/grub's GRUB_CMDLINE_LINUX_DEFAULT to include "vmalloc=256MB" solves issue ** Changed in: nvidia-graphics-drivers (Ubuntu) Status: New => Invalid -- Nvidia 6150 fails to start Xorg with nvidia-current https://bugs.launchpad.net/bugs/544817 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in ubuntu. _______________________________________________ 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