Ubuntu 16.04 nvidia drivers don't work
I also installed Ubuntu 16.04, clean install on a new hd and everything worked fine until I switched to NVIDIA driver. After rebooting I couldn't get past the login screen. The solution that worked for me was to disable secure boot.
While stuck in login loop, I switched to console Ctl+Alt+F1, rebooted and disabled secure boot in UEFI. Now everything works with nvidia driver installed.
I had this problem too. I just run this in a console (press Ctrl + Alt + F1, in login page to show first virtual tty):
sudo apt-get purge nvidia*
After this, rebooted and then i could login. After that, I installed intel drivers first, and then nvidia-361.
These were the steps I followed:
sudo apt-get purge nvidia*- reboot (now I had noveau display driver working)
sudo apt-get install intel-microcodesudo apt-get install intel-gpu-tools- Reboot (for testing, everything was working fine)
sudo apt-get install nvidia-361(I think nvidia-current is better long term option).- Reboot
Now I have these (sorry they are in spanish):
Additional drivers
I also have an issue with 16.04 and Nvidia 361.42 driver. You can use prime-select intel or Nouveau driver as temporary workaround. I have had endless issues with the official Nvidia Ubuntu drivers over the years, it's very hit and miss. I thought the introduction of Steam OS and the growing number of Linux users/gamers might encourage them to better support Linux :/