RX480 can't do 4K 60HZ

[Roy_wb]

I have a XFX Radeon RS RX480 8GB and a LeEco 43" 4K TV. I can't set refresh rate to 60HZ or even 50HZ without screen blinking and sometimes going black. LeEco TV only has two HDMI-2 ports and I have a HDMI-2 cable.

 

[xvid678]

Hello.

Yes, the GPU can do it, I have one that does. But, first of all, you have to check if your TV support it: 4K 60 FPS. Does it has a 2.0 HDMI connection?

 

[getochkn]

You'll need to use a display port to HDMI 2.0 adapter to get 4k60 out of a 480

 

[zyh1987]

could be a driver issue, if the driver doesn't know what TV it is or what it capabilities are. then there is nothing you can do. maybe you can get a tv tuner that takes your graphic card output as input.

 

[TJ Hooker]

You'll need to use a display port to HDMI 2.0 adapter to get 4k60 out of a 480

Huh? RX 480 has an HDMI 2.0b port, should be able to output 4K/60Hz just fine.

@Roy_wb is your HDMI cable a "high speed" HDMI cable? Do you have an alternative cable you can try?

 

[Barty1884]

From what I can find, that TV is from 2016.

initially, I thought it wouldn't have HDMI 2.0 but then:
https://www.pcmag.com/review/350227/leeco-super4-x43-pro?tab=Specs

Support for HDR-10? Which I believe *requires* HDMI 2.0

 

[Roy_wb]

Hello.

Yes, the GPU can do it, I have one that does. But, first of all, you have to check if your TV support it: 4K 60 FPS. Does it has a 2.0 HDMI connection?

yes----Two 2.0 HDMI ports

 

[Roy_wb]

From what I can find, that TV is from 2016.

initially, I thought it wouldn't have HDMI 2.0 but then:
https://www.pcmag.com/review/350227/leeco-super4-x43-pro?tab=Specs

Support for HDR-10? Which I believe *requires* HDMI 2.0

It has two HDMI 2.0 ports per spec

 

[Roy_wb]

You'll need to use a display port to HDMI 2.0 adapter to get 4k60 out of a 480

I have ordered the adapter and will see if this works.

 

[Roy_wb]

You'll need to use a display port to HDMI 2.0 adapter to get 4k60 out of a 480

Huh? RX 480 has an HDMI 2.0b port, should be able to output 4K/60Hz just fine.

@Roy_wb is your HDMI cable a "high speed" HDMI cable? Do you have an alternative cable you can try?

bought a HDMI 2.0 cable from Amazon which I am using...don't have another one.

 

[TJ Hooker]

Can you provide a link to the exact cable you bought?

 

[Roy_wb]

Can you provide a link to the exact cable you bought?

http://

https://www.amazon.com/gp/product/B01CRA11IU/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

 

[Roy_wb]

Can you provide a link to the exact cable you bought?

 

[xvid678]

There is no need for an adapter, that's a mistake. If your TV has HDMI 2.0 connection, you just have to configure it, when the PC is turned on.

You have to set it as your primary screen and enter in properties. You can do that in control panel.

 

[TJ Hooker]

Hmm, well that cable should be capable, unless you're unlucky and it happens to be faulty or something.

 

[Roy_wb]

I bought the display port to HDMI adapter cable and that solved the problem. No more blinking or blackouts. One good feature of the adapter is that the display port connection has a locking feature. I also noted that a lot of supposed HDMI-2.0 cables being sold did not support 60 HZ refresh rate. I would think that if a cable is rated HDMI-2.0 it should support 60 HZ refresh rate??