Changed "Secure Boot" and installed ubuntu
At startup, a purple screen, changing "Secure Boot" and the system is switched
"nomodeset" does not eliminate the purple screen
Install the drivers for the video card:
sudo apt-add-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get install nvidia-current
...changing "Secure Boot" and i see on a black screen cursor to a crosshair
If not change "Secure Boot" will be purple screen
