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*Official ATi/AMD EyeFinity Club* - Page 233

post #2321 of 2774
Hi kraytdizzle, IIRC you can run up to 2 DVI monitors on a single card without adapters, but when you use HDMI it disables the lower card, so you're correct in using the MiniDisplay port adapter.

If a Mini Displayport ==> DVI came with the card it should be fine.

I had a similar issue with my setup before where CCC was only detecting two monitors, I can't remember exactly what I did, but think I resolved it by playing about with the CCC settings under 'desktop management' and 'Common display tasks', as well as tweaking the Windows 'Multiple displays' settings; Go to Control Panel > Appearance and Personalization > Display > Screen Resolution for same.

Might be worth a try..
post #2322 of 2774
Quote:
Originally Posted by 7tronic View Post

Hi kraytdizzle, IIRC you can run up to 2 DVI monitors on a single card without adapters, but when you use HDMI it disables the lower card, so you're correct in using the MiniDisplay port adapter.
If a Mini Displayport ==> DVI came with the card it should be fine.
I had a similar issue with my setup before where CCC was only detecting two monitors, I can't remember exactly what I did, but think I resolved it by playing about with the CCC settings under 'desktop management' and 'Common display tasks', as well as tweaking the Windows 'Multiple displays' settings; Go to Control Panel > Appearance and Personalization > Display > Screen Resolution for same.
Might be worth a try..

My card didn't come with a MDP to DVI adapter. Just running a single 7970 for this.

I tried some Startech and an Accell adapter, currently using the Accell, or attempting to.

The computer has no issues detecting all three displays, I can get that set up no problem. I haven't tried actually switching to Eyefinity yet, just 3 extended.

The issue is, whenever the MDP adapter is in play and I try to run a game where the gfx card gets a workout, the screen acts as if there are hardware/resolution changes and keeps showing a black screen while that happens, as well as lowering clock speeds to idle until everything catches up and the game shows back up. Then after a second or two it repeats.

If I just run two monitors without the MDP adapter in play I don't have any issues whatsoever, aside from being mad that I am not using 3 monitors.
post #2323 of 2774
kraytdizzle what connectors are available on all 3 monitors?

here's the drop down

if your monitors have DP, it's best to use DP from Card to DP on monitors

if the monitors only have DVI ports then you will need 1 DP to DVI adapter for each port

completely and totally ignore HDMI, it causes more problem and you gain no better quality than a DVI or DP can provide.
also the fact most HDMI ports are shared with a DVI port, so you can't even use the HDMI port when both DVI ports are already in use.

so according to this, you only have 3 usable ports (DVI+mDP+mDP)
2cd9d1d7bb30511eb4cd517c131ae148_XL.jpg from http://www.visiontek.com/7000-series/hd-7970.html

that means the HDMI is definitely sharing the same output chip as DVI, which might explain why you were having all those issues.

so, you'll need 2x mDP to DVI adapters
you already got 1 mDP, which means you just need an extra mDP then you can plug all 3 monitors as DVI+mDP+mDP and setup Eyefinity 3

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post #2324 of 2774
Quote:
Originally Posted by kraytdizzle View Post


The computer has no issues detecting all three displays, I can get that set up no problem. I haven't tried actually switching to Eyefinity yet, just 3 extended.
The issue is, whenever the MDP adapter is in play and I try to run a game where the gfx card gets a workout, the screen acts as if there are hardware/resolution changes and keeps showing a black screen while that happens, as well as lowering clock speeds to idle until everything catches up and the game shows back up. Then after a second or two it repeats.
If I just run two monitors without the MDP adapter in play I don't have any issues whatsoever, aside from being mad that I am not using 3 monitors.

what you discovered is kind of expected.

for games or any 3D enable App to actually work, you need to setup Eyefinity 3 with the Catalyst Software

then that crazy video thing should go away.

but you still need to setup the connection properly using mDP+mDP+DVI

you can't use the HDMI else you lose a screen after going into 3D mode
    
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post #2325 of 2774
I'm a little confused here.

So just enabling eyefinity should fix all of this?

What happens if I want a game to just run on one monitor but still have all three monitors active?

I tried having MDP -> DVI and MDP -> DVI for running two monitors and had the same issues, but you guys are saying it is expected when using MDP adapters as it is looking for Eyefinity?

Also, will having an HDMI -> DVI converter thrown into the mix make a difference?

Say using:

DVI -> monitor
HDMI -> DVI -> monitor
MDP -> DVI -> monitor

Then enabling eyefinity.


Edited to add:

I'm using 3 ASUS VH236H monitors. http://www.newegg.com/Product/Product.aspx?Item=N82E16824236059
@1920x1080 resolution on all 3 monitors


VGA
HDMI
DVI

Connectivity
Input Video Compatibility - Analog RGB, Digital
Connectors - D-Sub, DVI, HDMI
D-Sub - 1
DVI - 1
HDMI - 1
DisplayPort - No
Edited by kraytdizzle - 8/29/12 at 10:12am
post #2326 of 2774
I Run:
Mini Display Port -> DVI via Active Converter -> Right Screen
Native DVI -> DVI -> Center Screen
HDMI -> DVI via HDMI to DVI Converted -> Left Screen

You can program a Hot key to turn Eyefinity on/off.

Eyefinity sets all the displays up as a Single Display Surface.

I just Leave it on, as All my Games Run Eyefinity, I only turn it off when I watch Movies on HBOGo/MAXGo as full screening their flash players dont center on one screen but stretch across the non DisplayPort screens.
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post #2327 of 2774
Even when crossfire, you still have to connect all monitors to one 7970. If its a validated dongle it should be fine as well. All Gamer is right about the HDMI- its pointless.

When you say you haven't tried actually switching to Eyefinity, and are just using extended desktop, chances are only the middle scree will display-and the other two will remain black, as the the game will only be displaying 1920 x 1080 or what ever res. your screens are.

Can you post your screen types and resolutions?

Assuming that all three monitors have DVI, is it possible to connect them like this:


7970 Mini Displayport --> Displayport adapter --> DVI cable --> monitor

7970 DVI --> DVI cable --> monitor

7970 DVI --> DVI cable --> monitor?

Then go into Catalyst control centre and go to 'Create Eyefinity display group' under the 'AMD Eyefinity multi-display' Tab on the left, and follow the set up wizzard.

BTW what game are you running, and does it support Eyefinity natively?
post #2328 of 2774
I edited my other post, but just for reference, here are my monitor specs:

I'm using 3 ASUS VH236H monitors. http://www.newegg.com/Product/Product.aspx?Item=N82E16824236059
@1920x1080 resolution on all 3 monitors

VGA
HDMI
DVI

Connectivity
Input Video Compatibility - Analog RGB, Digital
Connectors - D-Sub, DVI, HDMI
D-Sub - 1
DVI - 1
HDMI - 1
DisplayPort - No


The games I've tried have been Darksiders II and Starcraft II for my testing.
post #2329 of 2774
Just noticed that:) BTW Darksiders II and Starcraft II don't support eyefinity natively, are you using a fix like widescreen fixer or flawless widescreen?

Best thing to do is give a look here and install a game you have on the amd list that definitely works to test your setup after you configure it.


Some good guides here on overclockers and the AMD guide here.
post #2330 of 2774
I think you're going to have to use that DisplayPort instead of the HDMI. Like someone else mentioned the issue only presents itself when you connect the third monitor, because it will require you to use the DisplayPort. Try it and see if that solves your problem, I know it solved my issue back when I was first setting it all up.
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