9x9 multi monitor output with eyefinity

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noneuser

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Nov 12, 2013
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10,510
Hi!

I need to get working a video wall 9x9 (not for gaming). I already have a Samsung MD230X6 and a MD230X3 as displays.

I read about the ATI Eyefinity 6 (5870, 6870, and 7870), but is not very clear to me if I can get this working with one of this cards or maybe with two.

In the specs of this cards, I read that they have 6 DisplayPorts. It also says that if the displays are 1.2 compatible (or using a hub), I can use one of this DisplayPorts to connect up to 6 displays.

Does this mean that in fact I can connect up to 36 Displays (6 x 6) with only one card? Or one card supports up to a maximum 6 only, in one of two configurations (6 displays ports connected to only one Display, or 1 display port connected to 6 Displays)?

Related to this question, reading the footnotes in the Eyefinity Faq it says this

ATI Eyefinity technology can support up to 6 displays using a single enabled ATI Radeon™ graphics card with Windows Vista or Windows 7 operating systems - the number of displays may vary by board design and you should confirm exact specifications with the applicable manufacturer before purchase. Systems using multiple ATI Radeon™ graphics cards can support a maximum of 8 displays (total across all cards in system) with a maximum 6 of those displays being used together in a display group (also known as a single large surface mode).

If I have two of these cards, can I use it to connect 12 displays, or only 8 as the footnotes explain?

Or as the MD230X6 and MD230X3 supports daisy chain display ports, can I connect them to only two display ports and create the 9x9 video wall?

Thanks in advance!
 
Solution
lp231
If it's just 9 displays then it's really simple.
Option # 1
A single Eyefinity 6 card with 3 monitors connectors directly to the mini display ports.
2x 1.2 MST capable adapters hooking up 3 monitors each which gives a total of 6
6+3=9 monitor setup.

Option #2
Grab 2x Eyefinity 6 card and plug 9 monitors directly into the mini displayports.
And for them adapters, make sure they're active not passive
http://www.newegg.com/Product/Product.aspx?Item=N82E16812200944
I think that footnote is only for CrossFire setup or AMD eyefinity FAQ is outdated.
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lp231

lp231

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Mar 24, 2006
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Most AMD eyefinity capable card supports 3, there are some can supports 5 and even up to 6. Those are called Eyefinity 5 or Eyefinity 6 editions.
The maximums is 6 monitors on a single card. And according to AMD it looks like a mini-DP that is 1.2 compatible can drive up 6 displays, but you'll need a MST capable hub.
Even if it's capable to run 6x6 on a single card, you'll still need 3 card to setup 9x9

http://www.newegg.com/Product/Product.aspx?Item=N82E16814129262
http://support.amd.com/en-us/recommended/dpcapable
 
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noneuser

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Nov 12, 2013
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Thanks lp231, that's why i don't understand.

If I bought the 5870 or 7870 Eyefinity 6, the card is capable of 6 displays maximum per card, or 6 per displayport 1.2 (reaching 6 x 6) if i have the hub or a 1.2 compatible display?

And why you say I'll need 3 cards to reach 9x9? Is because with 2, althoug having 12 DisplayPorts (2 cards x 6 connectors) I can only use a maximum of 8?

Thanks in advance!
 
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lp231

lp231

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According to AMD's Eyefinity site
Using DisplayPort 1.2 MST, a user can connect up to six displays to a single port on many AMD Radeon™ graphics and AMD FirePro™ professional graphics products.
Click to expand...
From the looks of it, they're claiming it's possible to connect up to 6 monitors into a single mini display port, but this can only be achieved if you got a 1.2 MST capable hub or a 1.2 MST capable monitor.
The problem with the hub so far is, all I saw is maximum of 3 monitors not 6 monitors. Now with that, it seems the only way to get 6 screens out of a single mini display port is to use 1.2 MST capable monitors and daisy chain them.

You'll need 3x eyefinity 6 cards to get 9x9 because if each card can do 6x6 then 2 of them only give you 72
6x6=36 on 1 card
2 card is only 36X2=72
You're going with 81 (9x9), therefore you'll need 3 cards.
AMD themselves did a demo with Eyefinity using 24 monitors running on 4x Eyefinity 6 graphic cards
http://www.youtube.com/watch?v=tzvfzJq3VTU
 
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noneuser

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Nov 12, 2013
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Ohh sorry lp231 I'm really a stupid one. I notice now that I post the wrong info at the begining (I will not change it in case helps someone else).

My real case is a 3x3 configuration, so 9 displays total (1 Samsung MD230X6 and 1 Samsung MD230X6), not a 9x9.

So in theory, with only one eyefinity 6 card, if the displays support 1.2 MST I will be able to show info in each of the 9 displays, I'm right? And if the displays doesn't support 1.2 MST, I will need one card and two hubs. Is this ok?

My doubt is because this Eyefinity Faq

ATI Eyefinity technology can support up to 6 displays using a single enabled ATI Radeon™ graphics card with Windows Vista or Windows 7 operating systems - the number of displays may vary by board design and you should confirm exact specifications with the applicable manufacturer before purchase. Systems using multiple ATI Radeon™ graphics cards can support a maximum of 8 displays (total across all cards in system) with a maximum 6 of those displays being used together in a display group (also known as a single large surface mode).

I think this faq is misleading, it doesn't mention the possibility to connect hubs to each display port to reach 36 (6x6), in fact clarifiy a maximum of 8 if two cards used together. So is not clear to me if i using one display port with 6 displays connected exclude the possibility to use the other 5 display ports.

Last, because maybe is not clear in my first post, I need to show different info in full hd (1920x1080) in each display.

Thanks in advance for your time!
 
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lp231

lp231

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Mar 24, 2006
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If it's just 9 displays then it's really simple.
Option # 1
A single Eyefinity 6 card with 3 monitors connectors directly to the mini display ports.
2x 1.2 MST capable adapters hooking up 3 monitors each which gives a total of 6
6+3=9 monitor setup.

Option #2
Grab 2x Eyefinity 6 card and plug 9 monitors directly into the mini displayports.
And for them adapters, make sure they're active not passive
http://www.newegg.com/Product/Product.aspx?Item=N82E16812200944
I think that footnote is only for CrossFire setup or AMD eyefinity FAQ is outdated.
 
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Solution
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noneuser

Honorable
Nov 12, 2013
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10,510
Great info mate! I think 'll go with the 2 x Eyefinity 6 option (the price is rather similar considering the hubs are reaching the market now).

Good adivce for the dp-dvi active adapters, although i think i don't need them cause the eyefinity and the MD230X6 have both DP ports.

Thanks a lot for your help!!!!

 
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