I'm having this same issue. Try to print to Bluebeam PDF. Monitors will just go black without warning. It's a graphics issue. I hit ENTER and I get the monitors up and running again.
At that point I see an error window:
NVIDIA OpenGL Driver
The NVIDIA Open GL Driver lost connection with the display driver due to exceeding the Windows Time-Out limit and is unable to continue.
the application must close.
Error code: 7
Would you like to visit
http://nvidia.custhelp....blah blah blah
2015 SU Pro.
Dell with Intel(R) Xeon (R) CPU E5-1620 v2 @ 3.70 GHz, 16 GB RAM, 64 bit OS Windows 7 Pro sp1