Upgraded PC For 4K, But Displayport Not Detected - Please Help

Hi everyone

I have just completed building my PC by buying an MSI GTX 980 and a 4K TV
connected via a displayport and the weirdest thing happens I get a boot screen, but
its like it 3D, two screens side by side of the same image and then when windows boots
up the screen just goes black.
I have plugged in a HDMI in just to get an image and then gone into nvidia setting and the
displayport is not detected,
Have have tryed using the other display ports on the graphics card, but the same result, I have
reinstalled windows and my motherboard and graphics card drivers and its still the same.
I don't know what else to do.

Please Help

Here are my PC specs

Motherboard - Gigabyte Z87X-OC
Processor - Intel 4770K (Overclocked @4.3)
Power supply - Antec High Current Gamer M 750w
Memory - G.Skill 16GB (2x8) @2400 MHz
SSD - OCZ Vertex 4 128GB
Hard Drives - 3x Seagate Barracuda 3 TB
Graphics Card - MSI GTX 980 4G
OS - Windows 8.1
Display - Panasonic Viera TX-65AX802B

I have just reinstalled all of windows updates and still no change.

Please help

Here is an update
I have pluged the displayport into the motherboard instead of the graphics card and used
the intel graphics and the display works fine at 1920 x 1080 if I go to 2048 x 2160 its going
into 3D mode where are two images side by side like the boot screen with the graphics card,
but the graphics card was in 3840 x 2160, if I put the intel graphics resolution into 3840 x 2160
the screen goes black and then reverts back to previous settings.
So to me it likes like a problem with the graphics card driver.

If anyone has any ideas I don't know what else to do.
Please help

Here is an update
Everything is still the same, but now I have less hair
Please someone help

1.Have you Googled it?
2.Does the display port show up in the BIOS?

I have google it and it looks like some people are having the same issues, but I thought well maybe hoped that someone might have the answer.
I do get a bios screen when booting up, but its like 3D its two images side by side

I do get into windows if I plug the displayport into the motherboard instead of the graphics card

Here is a picture of the bios as it boots up
In the corner you can see the resolution 3840x2160 @ 60hz, but its doubling the image
and when its in windows it just goes black

Hi , I had the same problem with mine and found the solution. I googled it and came up with your original post and saw no solution had been posted. The solution is to access the displayport stream settings in the panasonic tv and change the settting from auto to single.
Panasonic Viera TX-65AX802B
Select display port connection via the AV input selection, so display port signal input is currently on screen
Menu>Setup>Display Port Settings>Stream Setting
Select Single and OK to save.
Worked for me just now, only drawback is it seems to display in 1080 rather than 4K even though my rig and the GTX 980 are capable of it. Might find a fix for the resolution issue but main thing for me is that I have a proper display!
Cheers.

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