Resolution issue with Radeon HD6870/Samsung U28E590D

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stuartjmz

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#214783 28-May-2017 13:11

The other day I bought a Samsung U28E590D, not specifically for its 4K features, but primarily because more screen real estate over the Samsung 23-inch I had would be helpful in my work. My card is an old one, a Radeon HD 6870, but if I understood this table from its specs pdf, I should at least be able to get 1920*1200 out of it. That increase would actually be OK for my work purposes.

Despite this, I seem to be stuck at 1920*1080 - the same resolution I had with my 23-inch monitor.

I have installed the Samsung monitor's driver, updated the AMD Radeon driver, and have spent much time since Friday trying to find a fix. The monitor has 2 HDMI inputs, I've tried both. I've also tried unchecking the GPU upscaling option shown ticked in the above screenshot. Is there no way to get a display resolution higher than 1920*1080?

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#1790620 28-May-2017 13:46

Its 16:9 ratio, hence 1920x1080. 1920x1200 is a resolution for 16:10 displays.

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stuartjmz

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#1790621 28-May-2017 13:48

Thank you! So this means that with my current card, I am in fact stuck with 1920*1080?

sbiddle

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#1790624 28-May-2017 13:53

As mentioned that's a 16:10 ratio not 16:9 so will not work unless you monitor supports a 16:10 aspect ratio

It took me about 30 seconds to Google the manual and see the list of supported resolutions, of which 1920 x 1200 is not one.

sbiddle

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#1790626 28-May-2017 13:55

stuartjmz:

Thank you! So this means that with my current card, I am in fact stuck with 1920*1080?

Unless you GFX card supports 2540 x 1440 or 3840 x 2160 the answer is yes.

stuartjmz

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#1790631 28-May-2017 13:59

Thanks, that is helpful. I will keep searching to find the answer to that question.

gzt

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#1790734 28-May-2017 17:48

The card does support higher resolutions, but not with an hdmi cable output.

freitasm

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#1790739 28-May-2017 18:14

stuartjmz:

Thanks, that is helpful. I will keep searching to find the answer to that question.

But you already have the answers above...

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stuartjmz

228 posts

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#1790745 28-May-2017 18:24

The answers above have been very helpful, which is why I expressed sincere thanks to everyone who generously gave of their time to reply.

The replies to my query have helped clarify something I was confused about and provided context for some Google results that I had come across yesterday. The reason I asked here was that I had read search results describing resolutions higher than 1920*1080 over HDMI cable with my card. Thanks to the answers above, I knew what to look for in the further search I alluded to. I know now that these results were only possible by overclocking, which is not something I can be bothered doing with a card that's nearly 7 years old.