2 DVI monitor + 1 DVI-to-HDMI (7970)

[Trentonxx]

Hi, a simple question. I have 3 monitors. 2 DVI cables and 1 HDMI cable. (+ 1DVI-to-HDMI adapter)

Because my Video card (XFX HD7970 black edition) has 2 DVI exit, 1 HDMI and 2 mDP.

 

when I go to the Catalyst center I can see all 3 monitors but Only use 2 of them, it's not a problem of "DVI and HDMI at the same time" like I read on a lot of other forum post. because I can nicely extend my desktop accros my DVI and HDMI display, but when I try to add the 3rd monitor it tells me:

 

my setup is:

 

is it because it's a different monitor? (different brand but same resolution)

I'm planning to change it anyway since it's just a temp monitor. I want to buy a 16:9 monitor and use it as central and put my 1 and 2 monitor at the sides, I'm afraid I might have the same problem, so if it's just a matter of cable compatibility what would be the best setup? ie: central monitor on DP and the external on HDMI, will I still be able to run extended desktop this way?)

[thekeemo]

try doing it in windows resolution 

[Trentonxx]

try doing it in windows resolution 

nice idea!

 

I tried and it gives me the "extend to this monitor" but then when I go to Apply it gives me error

(http://i.imgur.com/71G5oEn.png)

[thekeemo]

did a bit of research and turns out that you have to use display port for one of the monitors

[Trentonxx]

did a bit of research and turns out that you have to use display port for one of the monitors

yep I've read some similar answers. the fact is I don't have any display port cables or adapter atm. and I think I'll buy them when I'll buy the new screen at this point... uhm. thanks anyway

[Trentonxx]

Just one last info for the cable.. Should I buy a DVI splitter for the external  monitors and use the second DVI port on my gpu for the main screen?

Or I should keep them on 2 DVI for the external and 1 DP for the main?  I think DP has more feature and performance than DVI or for what I'm planning to do (1080p 60+fps) I don't have to care about bottlenecks in the connector?   but on the other hand a monitor with a Display port might be hard to find or cost more than a standard HDMI (I could still use an adapter...(?) uhm)

 

what config would you use?