Sony UHD X850B and GTX 960 HDMI 2.0, can't run 4k 60hz on desktop?

[ChrisRey3156]

Just bought a Sony X850B and a GTX 960. I am using a Forest HDMI cable.

Both have HDMI 2.0 and should be able to run 4k and 60 hz via Ycbcr444. I'm running driver 347.88. If I choose 4k x 2k 3840 x 2160 at 60hz, it shows a weird inverted color image.

Same deal with the 4096 x 2160 option. It will run fine at 30 hz. Am I missing a step here? Any help is appreciated.

Windows 8.1 Pro
i5 2500k at 4.5 ghz
EVGA GTX 960 FTW Edition 2GB VRAM
Forest HDMI Cable

 

[frankpc]

Just bought a Sony X850B and a GTX 960. I am using a Forest HDMI cable.

Both have HDMI 2.0 and should be able to run 4k and 60 hz via Ycbcr444. I'm running driver 347.88. If I choose 4k x 2k 3840 x 2160 at 60hz, it shows a weird inverted color image.

Same deal with the 4096 x 2160 option. It will run fine at 30 hz. Am I missing a step here? Any help is appreciated.

Windows 8.1 Pro
i5 2500k at 4.5 ghz
EVGA GTX 960 FTW Edition 2GB VRAM
Forest HDMI Cable

I am having a very similar problem. But I don't even get 30 Hz. And I get no image at all. I do have a Sony 940c, an i5 @ 3.5 gHz, and a GTX 960. And PowerDVD 15.

Did you fix it?

What software are you using and what source material?

 

[s44]

You'd have better luck asking in the owners' thread on AVS (that's x850b, this is x940c).

 

[frankpc]

You'd have better luck asking in the owners' thread on AVS (that's x850b, this is x940c).

Thanks s44. I do spend time there too. But there isn't a lot of use of the GTX960 for HT. Seems as though @ChrisRey3156 has done pretty much the same things I have but with a little better luck. I figure by now, he has solved the issues he was having.

I'm still working on it.

Again, Thanks!