4k Monitor Display Port Issues

[Checkerknight]

I bought a 4k Monitor today, (28" Samsung UE590) and I cant get the Display Port to work with it. It works fine through HDMI but Display port will either display a blank screen (not black as in monitor being off) but blank as in no input, or it will display but the bottom half will flicker and then it will go blank, and loop from there.

My graphics card is a NVidia GeForce GTX 980 Ti, and I am dual monitoring with just a dinky little LG monitor connected through DVI.

I have tried both Display Port inputs on my card and there is only one located on the back of my new monitor. I have updated Bios (Read somewhere in the deep internet that it helped) updated drivers, turned it off and on again, unplugged it, updated to windows 10 (clean install) and I am unable to get it to work. I currently have a new Display Port cable on the way, but I just want to make sure that there is nothing else that I am missing. I would love to play some games in 4k without a 30fps cap so please any help would be greatly appreciated. If more info about my computer is needed just ask and Ill let you know.

[Elon Mosque]

I know it will be a quite dumb to ask but have you tried changing the source.The monitor has its own menu button on right bottom and when you click onto that you can switch sources and maybe the monitor is searching an input from HDMI source rather than Display Port because you havent changed it?

[Checkerknight]

It displays Display Port in the top left, but still gives me the blank screen. Its like it's recieving something but just unable to display it correctly

[Elon Mosque]

I think best thing you can do is to wait for new cable because right now you may not be so sure about what is cuasing this issue.

[Septevar]

have you tried changing the display port mode? change the resolution? on nvidia control panel

[TorMazila]

"extend the desktop" to a new monitor? As by default it is blank, indeed. Did you try to connect it as the only monitor to your system?

[Bad 💀 Motha]

First I would try powering the machine off, connect only the 4K Display via DisplayPort and go from there. Make sure you actually switch the Display to the port you are using; some monitors might not Auto switch, due to them allowing you to manually switching inputs for various hardware all plugged into the single display at the same time.

Sometimes it can be any issue with the Cable itself, because of the Port is location-wise on the GPU, your cable's connector might not be secured all the way inside the port due to your case or the slot bracket not allowing this to occur. Seen it many times with HDMI where this port was at the end of the GPU bracket/slot and the case and/or cable connector thickness would not allow a 100% connection to the port.

And try to avoid hot-plugging Displays inside the OS; now while this should work without issues with Digital connections; it does not always. So when u have issues, best bet is connect the display while the system is powered off, power on the display, switch to the input you'll be using, then power on the pc.

[Checkerknight]

Lycas - There is nothing to change about Display port, theres no different modes, and If I have display port plugged in nothing gets displayed on my new monitor.

TorMazila - The display is already Extended because I had a second 1080p monitor already before this new 4k. If its the only monitor plugged in it will not display anything on Display Port. HDMI will work though.

Bad-Motha - Have turned them off and on and theres only 1 display port source on this monitor. Throughout all my testing I have turned the rig off, unplugged everything from the computer and monitor and plugged them back in with no success.

[Checkerknight]

----Update----
I got my new Display Port cord in the mail today and everything works just fine. Nothing wrong with the monitor, or the actual port themselves so everything is fine :)