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three 1920×1080 & one 2560×1440….

Updated on 18-12-2014 in MST Hub
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7 on 03-12-2014

i have three sreens in 1920×1080( 24′) and one screen in 2560×1440( 27′) .
I have two screens connected like DVI>>DVI and the other two (including the 27′ in2560x1440) are connected to a clubic3D MST HUB display port: DVI >>> DP for the two screen. But I only get 1920×1200 maximum resolution instead of 2560×1440 for the screen 27′ 2560×1440 . I don’t understand why … Is it a problem of card ( gygabite AMD radeon R7260x 2gb ) or a problem of software ( eyfinity) or a problem of cable ???

My card’s seller (LDLC.com) said to me : “The problem you encounter here certainly due to the limited horizontal resolution possible via AMD Eyefinity technology. Indeed, the maximum resolution is 8192 pixels wide. With three screens in 1920 over the screen in 2560, it reached 8320 pixels … that the card can not handle, therefore the fourth display switches to 1920 * 1200, which drops the total display width to 7680 pixels. There will not simply a hardware problem with the screen, wiring or the graphics card, but rather a software limitation…. , See if it is possible to create an “eyfinity group” for your first 3 HD screens, then position the fourth screen above independently. This should allow you to display the correct resolution on your new screen.” Is my card’s seller right ? Is that the problem? Or is it another problem ?

I understand the solution proposed by my card vendor but I have the feeling that the solution might be here with a magic cable clubic ^^ what do you think ??

Anyway I don’t know how to use eyfinity so I don’t know how make one group with 3  screen and a second group with the last screen in 2560×1440 …

So i  need a solution with a magic cable ^^ Maybe a DisplayPort to DVI-D Dual Link Active Adapter Cable connected to the hub to the screen 2560×1440????

Thanks!!

Best regards !!!!

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Paul 0 on 04-12-2014

Hi Bronson,

Let me get this right. You have three 1920×1080 screens and one that has 2560×1440 resolution and you want all of them to run at their native resolutions with the R7 260X.
Can you tell us what MST Hub are you using from us?
If you are using 4 displays, you can use the 260X native 4 ports to get 4 screens simultaneously, the only requirement is to have an active adapter on the DisplayPort output in case you do not have a DisplayPort monitor.
To setup an Eyefnity configuration you need to go to the Catalyst Control Center and under AMD Eyefinity Multi-Display you can configure the displays based on your physical positioning of your displays.

If your objective is to create a mixed configuration setup please read this article, I think it might be useful for you. You can find the link here
There are some examples of the setup

Now, in order to create a 3 screen setup in SLS (Single Large Surface) or Eyefinity 3 just pick the 3x 1080p displays only. Once you do that as explained above, create the group and then save the configuration. You can save the configuration under CCC in the same menu. Also you can adjust he bezels, this is important so you do not have crooked images from one monitor to the next.
After you create this group, under Windows Display Properties you will see two displays only, one with the 2560×1440 and the other as a 5760×1080 resolutions, drag the displays as you wish based on your physical position.
The guys at WSGF made a similar configuration as you want here. The main difference is that they are using a MST Hub 1-4 to drive all 4 displays. As they are using 3x 1920x1080p and one 2560x1080p screens, they just came short to the full bandwidth on a single DP 1.2 video output. In this case if they are using a 2560x1440p screen it will not be possible as they will exceed the bandwidth.

If you have more questions please let us know and welcome to insights

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bronson 1 on 04-12-2014

Thank you for having responded so quickly, you’re a great guy,

I’m French and I don’t speak a very well English ….so I’ll take the time to read your response and I will come to you to tell you what I think.

Best regards !!!!!!!

Paul on 04-12-2014

You are welcome. We are here always to help.
Check on our website about Eyefinity, this also can help you. Here is the link

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bronson 0 on 06-12-2014

1)  i use this club3D MST hub : 

http://www.materiel.net/carte-graphique/club-3d-hub-displayport-multi-stream-csv-5300-90771.html#descriptif<br />
2)

It is a trading station, I use 4 screens independently, I dont want one single surface with 3 or 4 screens ,as players, for example.

This works very well except that my fourth screen has a maximum resolution of 1920×1200 (the maximum resolution I can get), but this screen is a  2560×1440 normally.

look :

[url=http://www.hostingpics.net/viewer.php?id=57689320140609194411.jpg][/url]

3)Maybe I didnt use the correct MST hub, Should I look for a more recent and more powerful?

4) I watched your video but the guy uses three screens to display a single surface, and the fourth screen independant but I dont want that, I want all the 4 screens are independants ….like my photo…

Do you know what i mean ?

Best regards !!!!

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Paul 2 on 06-12-2014

Hi Bronson,
I do not know much about the Gigabyte graphics cards but I can tell you the typical configuration on a Club 3D 260X
Here is the card configuration;
1x DVI-D Single Link which it has a maximum resolution of 1920×1200
1x DVI-I Dual Link which it has a maximum resolution of 2560×1600
1x HDMI™ 1.4a which it has a maximum resolution of 4096×2160 30Hz
1x DisplayPort™ which it has a maximum resolution of 4096×2160 60Hz
Now, the main advantage of the MST Hub due to its 21.6 Gbps of bandwidth is that you can split the signal and you can make several combinations from a single DisplayPort output.
For example, you can split up to 4x 1080p signals from a single DisplayPort source.

In your case, I will do the following;
Use the 2560×1440 display on the DVI-I Dual Link port and the 3x 1080p screens with the MST Hub.
If you choose not using the hub you can use the following;
1x 1080p screen on the DVI-D port
1x 1080p on the HDMI port
1x 1080p on the DisplayPort using a Single Link Active adapter (cheaper than the dual link adapter)
1x 1440p on the DVI-I port (needs to be Dual-Link) to support the 1440p resolution.
The great advantage since you have the MST Hub is that you can use up to 6 displays (3 from the MST Hub through the DisplayPort  + 3 on the rest of the available ports 2x DVI + 1x HDMI)

I hope this answer your question.

 

bronson on 17-12-2014
In your case, I will do the following;Use the 2560×1440 display on the DVI-I Dual Link port and the 3x 1080p screens with the MST Hub.From Paul

Excuse me, but I had no internet connection because of a removals and when I recovered my trading station, I tried the above solution and it works perfectly !

So I owe you a big thank you paul !!!!

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Paul on 18-12-2014

You are welcome, I am glad that it work out as you expected.
Take care and enjoy.

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