Question Dual Link DVi to DP or HDMI conversation cable ?

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Mir96TA

Golden Member
Oct 21, 2002
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Hi,
I have 3 infamous Korean (Qnix/ Crossover) 27' 2K (1440p )monitor which has only Dual Link DVi connection.
I have notice on modern middle or high GPU do not have DVI link any more.
Is there cable which can convert HDMI to DVi Dual link monitor ?
Thanks
 
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potato masher

potato masher

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May 15, 2019
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HDMI to dual DVI adapters seem to be available and very affordable these days. Read reviews and buy from a return friendly place I would say. Got any pics of your setup? I love a good low budget triple monitors setup...

Back when I would have liked to try this there was nothing affordable out there. Seems you have good timing.
 
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Mir96TA

Golden Member
Oct 21, 2002
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I dont have a pic.
3 Monitor 3 different computer, connected to 3 different GPU.
I am in the cycle of GPU refresh.
I just learn High-end GPU and most of Mid-End GPU do not have DVi connection at all.
I can't seem to find a cable which can do HDMI to DVi with 2560x1440 resolution.
Thanks
 
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Viper GTS

Lifer
Oct 13, 1999
38,107
433
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Does it have to be HDMI?

Amazon.com: Club 3D CAC-1010 DisplayPort to DVI Dual-Link DVI-D Active Adapter for Your Monitor/Display - USB A Powered – 2560x1600 Resolution HDCP Supported NOT for Apple Cinema Monitors: Electronics

Buy Club 3D CAC-1010 DisplayPort to DVI Dual-Link DVI-D Active Adapter for Your Monitor/Display - USB A Powered – 2560x1600 Resolution HDCP Supported NOT for Apple Cinema Monitors: Everything Else - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
www.amazon.com

Most modern video cards will have at least one DP output.

Viper GTS
 
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Mir96TA

Golden Member
Oct 21, 2002
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Why such a expensive cable!
That is the only option ?
Isn't DVi and HDMI are same ? Its just DVi standards doesn't define the Audio ?
DO they not make DVi to HDMI with support of 2560 x 1600
 
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VirtualLarry

VirtualLarry

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Aug 25, 2001
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AFAIK, SINGLE-link DVI-D and HDMI can be converted, bi-directionally, with mechanical adapters (minus the audio, in some cases).

But DUAL-link DVI-D, has TWO sets ofTMDS transcievers/transmitters, which divide up the pixel-clock load, almost like SLI. In order to convert between that and HDMI, you would need an ACTIVE adapter. AFAIK.

Unless the DVI-D side can accept or transmit the higher-clocked signal needed to drive the HDMI side, or vice-versa, as a SINGLE-link, but HIGHER-clocked (like HDMI does with their TMDS).

So, unless your Korean monitors can accept a 2560x1440P HDMI-like signal over a SINGLE TDMS link set, on the DVI-D port, and the video drivers on the source device are set up to handle that, it's not going to work with a passive HDMI-DVI-D converter.
 
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Viper GTS

Lifer
Oct 13, 1999
38,107
433
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VirtualLarry said:
AFAIK, SINGLE-link DVI-D and HDMI can be converted, bi-directionally, with mechanical adapters (minus the audio, in some cases).

But DUAL-link DVI-D, has TWO sets ofTMDS transcievers/transmitters, which divide up the pixel-clock load, almost like SLI. In order to convert between that and HDMI, you would need an ACTIVE adapter. AFAIK.

Unless the DVI-D side can accept or transmit the higher-clocked signal needed to drive the HDMI side, or vice-versa, as a SINGLE-link, but HIGHER-clocked (like HDMI does with their TMDS).

So, unless your Korean monitors can accept a 2560x1440P HDMI-like signal over a SINGLE TDMS link set, on the DVI-D port, and the video drivers on the source device are set up to handle that, it's not going to work with a passive HDMI-DVI-D converter.
Click to expand...

This is correct. Even 1920x1200 @ 60hz was pushing the absolute limits of a single TMDS link.

To get what you want you need an active adapter; they aren't just cables - You're actually converting from one display interface to another

Allegedly there is enough bandwidth in single link TMDS to do 2560x1600 @ 35hz:

.

I'm guessing that is not going to work for you.

Viper GTS
 
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potato masher

potato masher

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May 15, 2019
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What kind of GPU performance do you require? I would grab 3 past generation GPUs.. there is some excellent stuff on the used market for not much coin. You're talking 150 in just adapters there.
 
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Mir96TA

Golden Member
Oct 21, 2002
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Success!
Finally found the adapter which works. Son of a Gun cost me like $50
 

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blckgrffn

blckgrffn

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May 1, 2003
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www.teamjuchems.com
mnewsham said:
Yeah an active adapter was the only way it was gonna work.
Click to expand...

My Dad (and thus me) had this same problem with 30" Monoprice 2560*1600 monitor from 2013 when I had him buy a RX 5700 w/no DVI thinking it would work with passive cables. Nope.

Nice monitor, but replaced it with a 2K Freesync 2 32" Dell monitor and as long as the HDR is playing nicely it is amazing. Gave me enough monitor envy to buy one for myself.

Just sold the Monoprice with a Dual Link DVI cable for $50 on Facebook, along with a PC with an older GPU with the right outputs.

I wish I had thought to check this before starting my shopping, it would have been a lot easier to find a video card with Dual Link DVI out :p
 
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