Aoc U2868PQU Can't 60hz@3840x2160

[Yggone]

So i just got this 4k monitor and i got it run 30hz at 3840x2160 but everytime i try to set it 60hz it reverts to 1080p and viceversa i set it to 3840x2160 it reverts to 30Hz

I am using Displayport 1.2 with R9 295x2 and i tried fiddling with CRU also i installed drivers beta and back but to succees.

Every time i boot up i get message from catalyst that there is something wrong between monitor and pc?

Edit: So now i installed catalyst beta and now resolution is 3200x1800@60hz and thats the highest resolution...

 

[Joost Zuijderduijn]

Can you post full specs of your computer here please?

 

[Yggone]

Oh sorry yeah.
Windows 8.1 64-bit
Cpu: 4790k
MB: gigabyte z97p-d3
8Gb HyperX predator
R9 295x2
1300w superflower

 

[Joost Zuijderduijn]

Try to read this my friend, it will show you what the Hardware you require to have in order to make 4k work.
http://www.digitaltrends.com/computing/what-hardware-do-you-need-to-run-stuff-at-4k-resolution-on-your-pc/

 

[Yggone]

Try to read this my friend, it will show you what the Hardware you require to have in order to make 4k work.
http://www.digitaltrends.com/computing/what-hardware-do-you-need-to-run-stuff-at-4k-resolution-on-your-pc/

I have read that and i think my pc would be capable to 4k ? I can have 4k resolution but not with 60hz even with Displayport 1.2.

 

[Joost Zuijderduijn]

Exactly.

 

[Yggone]

Exactly.

Exactly what ? im confused.
My screen should be able to do 3840x2160@60hz and my gpu should provide enough muscle also. But i cant enable 3840x2160@60hz and im now stuck 3200x1800@60hz

 

[Joost Zuijderduijn]

I can have 4k resolution but not with 60hz even with Displayport 1.2.
___ Exactly.
Having a 4k resolution monitor requires some heavy materials in order to work properly.
Properly is in working good, with less you can still do it, but the detail will be meh.

 

[bunta714]

You're using the DisplayPort connection (miniDP -> DP)?

 

[Yggone]

You're using the DisplayPort connection (miniDP -> DP)?

Yes, Gpu only has minidisplay and dvi while screen doesn't have minidisplay connectors, is that the problem ? Could it be that its 1.1 and not 1.2 ?

 

[bunta714]

You're using a miniDP cable or adapter and connecting it to the DP input on the monitor, right?
If you're trying to use miniDP -> HDMI with a current adapter or cable, it will only go up to 4K @ 30Hz (even if the HDMI is v2.0).

If you are going miniDP -> DP, are you using an adapter, or a single cable, and what length? It's possible there is something wrong with the cable/adapter (defective, too old).

 

[Yggone]

You're using a miniDP cable or adapter and connecting it to the DP input on the monitor, right?
If you're trying to use miniDP -> HDMI with a current adapter or cable, it will only go up to 4K @ 30Hz (even if the HDMI is v2.0).

If you are going miniDP -> DP, are you using an adapter, or a single cable, and what length? It's possible there is something wrong with the cable/adapter (defective, too old).

It's Displayport to minidisplay port and its cable and 2 m because it was only what they had.

 

[Yggone]

It was the cables fault ! Got a new cable and now it work flawless !

 

[bunta714]

Nice! Enjoy the 4K.