I see that nVidia cards that I have on hand do not like my PB287Q panel which is 3820x2160
So any worries about Radeon cards not liking my panel?
Make sure it's set to DP 1.2
System Setup => DisplayPort Stream: Compatibility with graphic card. Select DP 1.1 or DP 1.2 by graphic card DP version. (3840x2160-60Hz is available at DP 1.2 only. The best resolution is 3840x2160-30Hz at DP 1.1). Follow the instructions below to change 4K2K, 30Hz to 4K2K, 60Hz on your PC: In Windows, right click the desktop and enter the Screen Resolution. Go to Advanced Settings, and set the refresh rate to 60Hz from 30Hz.
My Panel is DisplayPort 1.2 compliant so it has enough bandwidth.
My resolution is 3840x2160 standard 60 Hz which is all I need for work with photos etc. My panel has 10-bit per color which is more demanding too.
Gaming is brutal at 4K.
Looking over eBay, RX 570 cards are outright inexpensive so maybe I will grab one and see if team red can do 4K60 properly
oh i was saying that there is a setting in the menu for monitor for DP 1.1 and 1.2 version. When I looked at reviews, there didn't seem to be any specific nvidia or amd issues. Cable might have something to do with it too. I just took a guess as to what might be going since not much info to go on.
Good luck.
I will try another DP cable as they are low cost. Sure is peculiar kind of problem with the panel LED on but nothing displayed.