Changes
/* Intel & Nvidia graphics drivers */
sudo apt-add-repository ppa:graphics-drivers/ppa
sudo apt-get update
nvidia_driver=$(apt-cache search '"nvidia-[0-9][0-9][0-9]' " | grep -o "nvidia-[0-9][0-9][0-9]" | sort | tail -1)
sudo apt-get install i965-va-driver vainfo $nvidia_driver vdpauinfo mesa-vdpau-drivers vdpau-va-driver --install-recommends
