XUbuntu 16.04 NVIDIA QUADRO M2000 Blackscreen

Hello everyone,

I use Xubuntu 16.04 and have a Nvidia Quadro M2000 which has 4 Outputs.
But If I wanna use them with the Xorg Driver it does not work frozen screen.
Now I updated it to NVIDA Driver 375.20 after I reboot it loads until I have to put my password
but my Keyboard (USB) does not work. Than I rebooted again now I can chose between normal boot and advanced. If I chose normal I get an Blacksreen.

Has anybody a solution for it , I would be very grateful

Best Regrads