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Cant get 4k 60hz with R9 390 and Hisense H9F

Updated on 12-12-2019 in Adapters and Cables
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1 on 09-12-2019

Hello, i recently purchased the Club 3D CAC-1080 DisplayPort 1.4 to HDMI 2.0B HDR Adapter for my 65inch Hisense H9F. However, I am unable to get my tv to display 4k 60hz on my PC. Im using an AMD R9 390 with up to date drivers. The maximum hz i am able to get is 30hz at 4K. I am using an HDMI 2.0 cable and the display port on my graphics card is DP 1.4.
My TV supports 4k 60hz from every HDMI port, but the maximum refresh rate option on my PC is 30Hz.

Ive treid everything i can think of. Anybody else have this sort of problem?

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CLUBBIE 0 on 12-12-2019

Hello,

This is not a known issue.

 

In general

 

  • Setup

Setups with TV’s normally work best by making a custom resolution, 3840*2160 at 60 Hz with Timing Standard set to CVT-RB (Reduced Blanking).

(For setups with Monitors Timing Standard can remain on “auto”.)

On most TV’s you will need to do some settings like “Enhanced Mode”/ “PC-Mode” and/or “UHD Color” for the HDMI 2.0 port in use. 

Please make sure the HDMI port of the Screen/TV supports 4K 60 Hz, often not all HDMI inputs support that.

Please make the HDMI Cable you are using, supports 4K 60Hz / 18Gbps.

 

 

  • Graphics Drivers

Using the upgrade feature to update Graphics drivers can cause issues, because old files can remain in the registry of windows and can be “in the way”.

Please make a new clean driver installation to make sure that part is ok.

Please uninstall the current Graphics driver and all related Graphics software like Afterburner/GPU-Z or whatever graphics related software you might have installed.

Best way to remove Driver Software is to boot Windows in Safe mode, so the registry can also be cleaned.

If your system does not allow you to do that, you can also use a program like DDU to remove such software: http://www.wagnardmobile.com/DDU/ 

Also, please manually delete the AMD / Nvidia Folder from your C drive.

When done, reboot and manually download and install latest available driver for your Card (don’t let any auto installer do that).

 

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