Lack of 4k resolution choice within Windows 10

D.Roberts

D.Roberts

D.Roberts

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Hey,

So my brother just recently purchased a 4k UHD TV. However upon hooking it up, windows 10 refuses to allow the resolution to be set to the native res of the panel itself. His Graphics card supports 4k bought from OCUK itself, he also purchased a HDMI cable from OCUK which states to support 4k.

Graphics Card:
https://www.overclockers.co.uk/xfx-...-card-r9-390p-8db6-gx-227-xf.html#description

HDMI Cable:
https://www.overclockers.co.uk/ocuk...-with-ethernet-cable-cdlhd-005-cb-037-op.html

And lastly the TV.


Sadly however we cannot in any way, find a means to make it so that windows will output at the 4k Resolution.

Can anyone please provide some insight as into why this may be?
 
I would remove the drivers and reinstall them while connected to the TV. Then see if you can select the 4k res, also check which HDMI port its connected to on the TV.
 
There is no good news - the DVI socket can't provide enough bandwidth for 4K and you'd only get 4K @ 60Hz via HDMI which I don't believe the 390 does and I'm not even sure if they are HDMI 2.0 connections on the TV anyhow which means you'd be limited to 30Hz.
 
Rroff said:
There is no good news - the DVI socket can't provide enough bandwidth for 4K and you'd only get 4K @ 60Hz via HDMI which I don't believe the 390 does and I'm not even sure if they are HDMI 2.0 connections on the TV anyhow which means you'd be limited to 30Hz.
Click to expand...

Currently using HDMI and not DVI. If that is the case and AMD sell what they claim to be a "4k gaming card" That doesn't go above 30hz then I'm going to be seriously ticked off.

The TV itself clearly states that it supports HDMI @60hz 4k. Meaning either perhaps the cable is to blame. (Although I have tried another cable that produces the same result) Or the TV is lying about it's capabilties. OR the Card itself isn't fully spec'd on the website to clearly state that it can only do 4k at 30hz. In which case that needs to be VERY clearly stated on the description and spec sheet to potential buyers.
 
Sorry for the double post. So it turns out that it is the card itself that isn't actually capable of 4k. I have got it to display at 4k after turning off GPU Scaling within the Radeon settings, however HDMI will NOT go above 30hz and thus is entirely impossible to play at 4k due to the monstrous input lag.

The HDMI on the card it 1.4A which was NOT stated on the OCUK sales page and it ONLY does 30hz. Only 2.0 can do 60hz. Why they claim it CAN do 4k gaming is beyond me because it can only do that via Displayport.

Which leads to my question. Are there any Displayport to HDMI adaptors that will allow me to output via my Displayport on the card, to HDMI on the TV and give me 60hz?
 
The HDMI ports on the TV itself is 2.0 so there is that - AFAIK the only adapter that is anything like guaranteed to work is the Club3d DisplayPort 1.2 to HDMI 2.0.
 
Which means the only thing to fault is the card itself and it's somewhat vague sales page.

Do you have a link to said adaptor? Just to make sure I end up buying the correct one.
 
D.Roberts said:
Sorry for the double post. So it turns out that it is the card itself that isn't actually capable of 4k.

The HDMI on the card it 1.4A which was NOT stated on the OCUK sales page and it ONLY does 30hz. Only 2.0 can do 60hz. Why they claim it CAN do 4k gaming is beyond me because it can only do that via Displayport.
Click to expand...
well most 4k monitors use display port. so in a standard gaming situation using a monitor and not a tv, it can do 4k fine. If you had done some more research or read a review of the card, many of them mention that one of the down sides of the card is that is only has hdmi 1.4a.
 
Jumper118 said:
well most 4k monitors use display port. so in a standard gaming situation using a monitor and not a tv, it can do 4k fine. If you had done some more research or read a review of the card, many of them mention that one of the down sides of the card is that is only has hdmi 1.4a.
Click to expand...

It still does not negate the fact that they have not clearly stated its specs. When it says it is entirely 4k capable for gaming. I don't suddenly expect to find out that i'm entirely gimped out of an actual 4k experience due to this issue.

I have also noticed now that all R9 390 sales page items are missing (None will show up in the components page at all for me since writing out my hardware support topic and this topic also. They haven't however responded to my messages. Can only get to look at my card I purchased recently if I have a direct link.
 
D.Roberts said:
Which means the only thing to fault is the card itself and it's somewhat vague sales page.

Do you have a link to said adaptor? Just to make sure I end up buying the correct one.
Click to expand...

I cant give you competitor links so you can google 2 models below:

CAC-1070 - Club3D DisplayPort 1.2 to HDMI 2.0 4K/UHD 60Hz Active Adapter
CAC-1170 - Club3D Mini DisplayPort 1.2 to HDMI 2.0 4K/UHD 60Hz Active Adapter

I read many reviews from customers bought these adapter, one said 4K at 60Hz worked fine on 390X Crossfire.
 
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After purchasing the 1070 adaptor. I have achieved 4k @60hz. Sadly however this has just bought about further issues.

The screen flickers every second or so with what appears to be a slightly translucent fuzzy/static overlay to the screen. Using 4:2:0 or even 4:4:4 or 4:2:2 makes no difference.

I have also noticed a distortion within colours themselves. With Whites now seeming to be of a more cream/green (Although I imagine I can fix that with some slight color tweaks via the TV itself)

However I've no idea how to fix the issue of the flicker, or how to make sure the PC retains 4k output rather than sometimes randomly deciding it wants to work at only 1080P regardless of being connected via the adaptor until the PC is restarted a few times and allows me to choose 4k output once more.
 
AMD don't lie, the Card is capable of 4K output (and therefore 'gaming')

I'm guessing you haven't done too much research in to this though, as a 390 is not going to give you a good 4k gaming experience, even if you get 4k/60hz working properly, the framerate is liable to only be in the 30's anyway.

People spend £1000+ on GPU's for 4k gaming at 60hz.

I'm running Maxwell Titan X SLI which cost me nearly £1600 in March 2015 and now Nvidia sell the Titan X Pascal for £1000

Those are 4k gaming GPU's.
 
I wouldn't have gone down the active adaptor route, out of scepticism of it working properly more than anything, and unfortunately you've experienced just that.

One simple thing you can do is check the cable isn't too long - DP has a max cable length of 3m.

You could try a different adaptor, but I would return it and the card and get something that has the right transport. (Either HDMI 2.0+ or DisplayPort 1.2+.)
 
VincentHanna said:
AMD don't lie, the Card is capable of 4K output (and therefore 'gaming')

I'm guessing you haven't done too much research in to this though, as a 390 is not going to give you a good 4k gaming experience, even if you get 4k/60hz working properly, the framerate is liable to only be in the 30's anyway.

People spend £1000+ on GPU's for 4k gaming at 60hz.

I'm running Maxwell Titan X SLI which cost me nearly £1600 in March 2015 and now Nvidia sell the Titan X Pascal for £1000

Those are 4k gaming GPU's.
Click to expand...

Admitedly I shouldn't have just taken OCUK's vague sales page at face value, and researched more, but I'm still miffed why it is so vague in the first place in regards to the specs of the HDMI in the first place.

On a sidenote. Not sure what you are talking about. I'm still running Elite Dangerous, FO4, ATS and ETS, Dirt Rally, Stellaris, and a few others at 50-60FPS or more on ultra at 4k using my R9 390 DD XFX Black Edition 8GB

joeyjojo said:
I wouldn't have gone down the active adaptor route, out of scepticism of it working properly more than anything, and unfortunately you've experienced just that.

One simple thing you can do is check the cable isn't too long - DP has a max cable length of 3m.

You could try a different adaptor, but I would return it and the card and get something that has the right transport. (Either HDMI 2.0+ or DisplayPort 1.2+.)
Click to expand...

It seems to have stopped now, I think perhaps it was interference from something? I'm not sure but the issue seems to have resolved itself in that regard. Only issue left to fix now is the insanely loud and somewhat offputting rattle from the GPU when under heavy load.
 
D.Roberts said:
Sorry for the double post. So it turns out that it is the card itself that isn't actually capable of 4k. I have got it to display at 4k after turning off GPU Scaling within the Radeon settings, however HDMI will NOT go above 30hz and thus is entirely impossible to play at 4k due to the monstrous input lag.

The HDMI on the card it 1.4A which was NOT stated on the OCUK sales page and it ONLY does 30hz. Only 2.0 can do 60hz. Why they claim it CAN do 4k gaming is beyond me because it can only do that via Displayport.

Which leads to my question. Are there any Displayport to HDMI adaptors that will allow me to output via my Displayport on the card, to HDMI on the TV and give me 60hz?
Click to expand...

They claim it can because it can... Its not their fault you didn't research it enough and buy a monitor with DP...
 
D.Roberts said:
Admitedly I shouldn't have just taken OCUK's vague sales page at face value, and researched more, but I'm still miffed why it is so vague in the first place in regards to the specs of the HDMI in the first place.

On a sidenote. Not sure what you are talking about. I'm still running Elite Dangerous, FO4, ATS and ETS, Dirt Rally, Stellaris, and a few others at 50-60FPS or more on ultra at 4k using my R9 390 DD XFX Black Edition 8GB



It seems to have stopped now, I think perhaps it was interference from something? I'm not sure but the issue seems to have resolved itself in that regard. Only issue left to fix now is the insanely loud and somewhat offputting rattle from the GPU when under heavy load.
Click to expand...

That may be coil whine or a Fan issue. Both of which would require an RMA if you were annoyed by them.

Coil Whine is normal tbh.. Both my 290x have it
 
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