Is there a 1440p HDMI to DVI-D cable available?

[Toobad]

Hi and thanks for stopping by. I've obtained a 27" Hazro IPS monitor which I want to use on a non-gaming PC. Because it doesn't have a built-in scaler, it has to run at its native resolution of 2560 x 1440 and to do this it only has one input, a dual link DVI-D socket of the 24+1 pin variety. My graphics card is an Asus Radeon R7 250 and this has VGA, single link DVI and HDMI outputs. The specs say it achieves a maximum DVI resolution of 2560 x 1600. Since a single link DVI connection tops out at 1980 x 1200, I can only assume it is the HDMI connection which gives maximum resolution.

Does anybody use or can point me to a suitable HDMI to DVI-D adaptor cable. There are plenty of cables and adaptors around but all seem to be limited to 1080p at the HDMI end. I guess I need the HDMI spec to be 1.4 which I think handles up to 2160p (4K). So in summary, I am looking for an HDMI v1.4 to Dual Link DVI-D cable.

[EndlessWaves]

Single link DVI and HDMI use three data links with a clock of 165Mhz for lower resolutions.

Dual-Link DVI supports higher resolutions by having six data links at 165Mhz, HDMI does it by using three data links at 340Mhz. I'm only guessing but I would have thought you'd need a converter box rather than a simple cable to cross connect them.

Looking on the Asus UK website both R7 250s listed there, the R7250-1GD5 & R7250-OC-2GD3, say they have a maximum DVI resolution of 1920x1200.

[Toobad]

Woe, woe and thrice woe! I appreciate the steer and can now understand cross patching the pins from 6 data streams to the pins of 3 data streams is simply a no-go unless the extra electronic jiggery pokery of a converter box is deployed. It does explain why all the cables I've seen come with a 1080p rating. I was kind of hoping for a "seen it, done it, buy this" reply but, alas, it is not to be. Thanks for taking the time to set me straight. I guess a cheap passive video card with a Dual Link DVI-D output would be the most cost effective way to go.

[DDY]

If your display supports lower refresh rates, you might be able to push 2560x1440 at say 30Hz though the cable. Obviously you'll have to live with 30 frames/sec but it could be useful as a stop gap measure.

http://www.notebookcheck.net/2560x14...I.92840.0.html

I'm currently running my Dell U2715H at 2560x1440 30p using a DVI-HDMI cable off my i5 2500/Z77, purely as a stop gap while I wait for my new GTX 980 to arrive.

[Toobad]

Now that is certainly thinking outside the box! So theoretically, if I can create a custom 2560 x 1440 setting that will reduce the data flow sufficiently so it can be handled via a single link DVI connector, I should be able to hook my Hazro monitor up to the single link DVI port of my AMD R7 250 graphics card. A quick look around the Catalyst Control Centre doesn't show any facility to create custom settings unlike the nVidia control panel but I have stumbled on some 3rd party software by googling "AMD Custom Resolution Utility". I guess the next step is to somehow get the custom resolution running on my 1920 x 1200 single link DVI Dell monitor (because that's the only way I'll be able to see what I'm doing) and then swop over to the dual link Hazro which hopefully will then burst into life.