I just installed Ubuntu for Desktop 16.04 LTS with the ISO on a USB.
After the reboot, the partition/boot selection appeared, I select Ubuntu (the normal default launcher) and the screen is inactive (like when I disconnect the cable).
Computer:
- Intel E6600 2core 2.4GHz
- 16GB ram
- NVidia 480GTX
- Screen resolution: 1900x1200