ATI HD5850 and 2 k monitor resolution 2560x1440 problem.

[GEOrifle]

Recently bought 2k(1440p) resolution monitor and set it up on 2 PC's, one of them r9 390x and another HD5850 which instead 2k res shows just 1920x1200 by HDMI cable.
Couldn't figure out what's wrong. I know Max res of it is 2560x1600
Any help would be appreciated.
Thanks.

 

[EliteRetard]

Most likely an old outdated HDMI version on the 5850, which doesn't have the bandwidth. You'd need to use a dual link DVI cable to hit 2560x1600. HDMI really has always been a garbage low end connector that's well behind all others.

 

[GEOrifle]

Sh*t, The monitor has no DVI connection, Tech support told me to send it at XFX but they not gonna send me a new one because HDMI is outdated, the card actually is in working condition.
So the only choices i got is use 1080p, buy DVI-HDMI cable or "HELP" it to die ASAP for replacement , at last send it for check-up (Lifetime Warranty) right?

 

[VirtualLarry]

Does the 390X properly display at 2560x1440 @ 60Hz, over it's HDMI port?

I had a couple of 7950 3GB cards, and even though the HDMI on those was 1.4, they could still drive my 4K UHD TVs at 3840 x 2160 @ 30Hz.

The 390X should be an even newer card, I would think it should also be able to drive that res.

Did you install the newest drivers, and go into Display Properties, and see if those resolutions show up?

 

[GEOrifle]

I did everything but no results, all the same. Tried 2 HDMI cables and new Legacy Cat. Software recommended by Tech Support.
390x does great job through Display port, no complains.
The only thing is it's reaching 90c at certain games, others recommended to update by custom BIOS, will try later.

 

[VirtualLarry]

It sounds to me like DisplayPort is the ONLY input port on this monitor that will get you the 2560x1440 @ 60Hz resolution, that the HDMI may only be for 1080P usage.

I know, would be strange if true, but the 390X should be able to drive it via HDMI. The fact that it isn't, indicated to me that the input is only for 1080P.

 

[GEOrifle]

I didn't try 390x via HDMI yet but i guess it's worth to try just for results.
Thanks.

 

[EliteRetard]

It sounds to me like DisplayPort is the ONLY input port on this monitor that will get you the 2560x1440 @ 60Hz resolution, that the HDMI may only be for 1080P usage.

I know, would be strange if true, but the 390X should be able to drive it via HDMI. The fact that it isn't, indicated to me that the input is only for 1080P.

I think you missed the part where he said 5850

Anyway, I think theoretically a proper dual link DVI to HDMI adapter could do it for your older 5850. I'd use a cheap adapter, not a cable....admittedly I've never tried this, or used HDMI in any form or fashion. Problem is you may only get adapters wired internally for single link DVI (even if they have all the pins externally).

 

[GEOrifle]

Cards chipsets maximum resolution:
integrated dual-link DVI output with HDCP: Max resolution: 2560x1600
Integrated DisplayPort output: Max resolution: 2560x1600
Integrated HDMI 1.3 output with Deep Color, xvYCC wide gamut support, and high bit-rate audio Max resolution: 1920x1200
Integrated VGA output Max resolution: 2048x1536

So bought HDMI A Male to DVI-D(24+1) Male Cable
https://www.newegg.com/Product/Product.aspx?item=N82E16882422117

 

[VirtualLarry]

That cable is not going to work. There is no such thing as a DUAL-link DVI-D to HDMI (passive) adapter.

 

[VirtualLarry]

Might have to use an (Active) DP-to-HDMI(2.0) adapter.

 

[GEOrifle]

Monitor connections explained – Single and dual link DVI-D/A/I
https://seriousseverity.wordpress.com/2013/10/10/monitor-connections-explained/
I'm not sure id ACTIVE adapter will be needed, but i've give it a try, will post the result.
Thanks.

 

[EliteRetard]

That cable is not going to work. There is no such thing as a DUAL-link DVI-D to HDMI (passive) adapter.

You sure about that? A quick search suggests there are dual link DVI to HDMI adapters. Again, I have not used any of these...but I don't see why you couldn't take the higher bandwidth digital DVI signal and feed it into a higher bandwidth HDMI connection.

Here's just one example I found really quick:
https://www.amazon.com/dp/B00MCSMVYG/ref=olp_product_details?_encoding=UTF8&me=

Sturdy Connectors
BySamuelon December 28, 2016
Length: 2pcs HDMI To DVI Adapter|Verified Purchase
Worked great! Needed a dual-link DVI to HDMI 2.0 to support a monitor with resolution higher than 1080p (Dell u2515h WQHD).

Works just fine.
ByJS Randallon April 6, 2017
Length: 3 FEET|Verified Purchase
Works just fine running a 2k monitor (2560x1440) from the DVI-D port of my desktop to the HDMI input of the monitor.

PC to Samsung MU436300
ByEast Bay Areaon June 16, 2017
Exactly what I needed to connect my HP PC w/DVI-D dual link to my Samsung MU436300 4k UHD TV.

 

[GEOrifle]

What about the cable i bought?
Picture shows it's DUAL but guys are saying it's a SINGLE ?

 

[EliteRetard]

That adapter and cable i bought are similar i guess.

There's a big difference between single link and dual link DVI-D. You NEED DUAL LINK for 1440/1600.
That cable doesn't specify dual link, and in fact says right in the description that it's max is 1080/1200 (single link).

Even if it has all the pins externally, it doesn't mean it's all wired up internally.
For example, DVI was designed to carry analog as well. Most GPUs have DVI ports with the analog pins...but those pins aren't actually wired up and you can't get an analog signal out of them (I've experienced this myself). So a cable or adapter that looks like it has all the pins, doesn't mean it can actually carry analog or dual link.

 

[VirtualLarry]

Shrug. DVI-D dual-link has two sets of TMDS transmitters. HDMI has one (AFAIK). How to connect two digital outputs to a single digital input? Without "active" electronics? I don't know.

I used a single-link DVI-D to HDMI adapter, on my G3258 rig, in Linux, and it was driving my 4K UHD TV, at 3840x2160 @ 30Hz. Some shades of green were "sparkly" though. Pretty sure that it was just overdriving / overclocking the single set of TMDS on the DVI-D output on the motherboard, that was only specced out for 1920x1080, hence the visual anomalies. (Linux video driver didn't care about BIOS limitations on the DVI-D port.)

 

[GEOrifle]

Good job, canceled my cable and will order adapter.
Thanks guys.

 

[EliteRetard]

Shrug. DVI-D dual-link has two sets of TMDS transmitters. HDMI has one (AFAIK). How to connect two digital outputs to a single digital input? Without "active" electronics? I don't know.

From what I understand dual link is just additional data pins, it's not sending two separate images/signals...and it's all digital 1s and 0s.
I'll say it again, I have no first hand experience with this...but theoretically I don't see why you can't take the digital data from a dual link dvi connector and feed it into a modern higher speed HDMI cable. If it is going to work correctly though, it must be truly wired dual link.

Here's an example of how I see it. If the manufacturers buys a stock connector with all the pins, they can choose to wire DVI as single link or dual link (again, pins outside doesn't mean they're wired inside). There's image data wires (red), and power/sense wires (blue), single link DVI doesn't use all the available pins on either connector. Single link DVI has 6 pins, Dual link uses 12 pins (analog uses another 6 pins too, not available over HDMI). In a Dual link setup they need to physically add more wires and connections which costs more (which is why not all DVI adapters have all the internal connectors wired). But I think it should be possible to add those connections...and a basic search suggests yes as well. Though as VirtualLarry suggested, maybe they are simply overclocking a single link and claiming it as a dual link connector.

 

[GEOrifle]

Is this Dual Link cable better than adapter?
http://www.ebay.com/itm/HDMI-to-DVI...a2fd6e0&pid=100009&rk=1&rkt=1&sd=381905552950

 

[EliteRetard]

Is this Dual Link cable better than adapter?
http://www.ebay.com/itm/HDMI-to-DVI-D-24-1-Dual-Link-Cable-Male-Gold-HDTV-PC-1080P-Display-Adaptor-6FT/222466791383?_trksid=p2047675.c100009.m1982&_trkparms=aid=888007&algo=DISC.MBE&ao=1&asc=44840&meid=def9541da5c54944b2f4adceda2fd6e0&pid=100009&rk=1&rkt=1&sd=381905552950

That cable only mentions 1080 support. The adapter I found earlier specifically sates 3840x2160 (no way it could do that at more than 30Hz though). Also, I would think Amazon has a much better and easier return policy if the adapter doesn't work. You already have HDMI cables, if they work through the 390 (they should) then they should work through the adapter (if the adapter can do what it claims).

There may be other options, but this particular cable doesn't look to be it.

 

[GEOrifle]

Some say about that adapter didn't work on 2560x1440p resolution.
(Not Dual Link for an HDMI source
ByD.B.on June 12, 2017
Length: HDMI To DVI Adapter|Verified Purchase
This female HDMI to male dual link DVI-D adapter is not as described. While I expect it will work with a dual link DVI source and an HDMI display, the adapter functions as an HDMI to single link DVI-D adapter when using an HDMI source. I am only able to get 1920x1080 resolution on my 2560x1440 display. I am able to drive the full 2K resolution by using the HDMI port on the display directly rather than through the adapter, so the problem surely is the adapter.
After researching the problem, it is apparent that several active converters are needed to convert an HDMI source to dual link DVI. There appears to be no such device on the market. Regardless, if you need to an adapter for greater than full HD resolution from an HDMI source, do not buy this adapter.)
LOL

So i bought this one,
Gofanco Gold Plated DisplayPort to HDMI 4K x 2K Resolution Adapter
https://www.amazon.com/gp/product/B00Y1DDNN8/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1