(win7 system) Adjust the refresh rate in the NVIDIA control panel (<300 can enter the desktop, >300 cannot enter the desktop) DP interface, the display supports 360HZ refresh rate
What's your monitor? Have you checked for a firmware update for it? How about using hdmi. Hdmi 2.1 has a higher bandwidth than DP (48Gbit/s I think). There might even be updates for your video card. They are often not listed so you'd have to contact support... How do you know it's a win7 driver issue? Does it work with Win10??