I have just bought a new computer with dual 5870s, each with 6 mini-DP connectors, and 3 monitors. I have an ASUS P6X58D Premium MB.
I can't figure out how to get all 3 monitors working at once though. In the Catalyst Control Center, I can get any two to work fine, so the problem isn't the monitors or cables, but if I try to extend the desktop onto a third monitor I get "To extend the desktop, a desktop or display must be disabled".
I've tried to google for help, but unfortunatly the only results I can find are people who don't have the right adapter for their DVI/HDMI/DP or whatever, which obviously isn't my problem.
I have just updated to the latest drivers and CCC.
Are all of your monitors the same make/model or are you using different monitors? Also, are you connecting all monitors to one GPU or across both of them? Last, what version of Catalyst Suite are you using (if not the most current, I recommend to download and install it)?
Apparently it IS an adapter problem. I had assumed, quite wrongly as it happens, that the adapters that came with the GFX card would be active and work fine.
But that's not the case. I kinda feel like I've been conned by ATI. The fact that I need to buy a special adapter to run eyefinity on an eyefinity card that comes with a range of adapters seems rather ridiculous
You have stumbled into one of eyefinity's only major faults. It is a timing/synch issue in order for the technology to work. I thought, however, that you could use 3 monitors (extended desktop) without using eyefinity. Not to insult, but have you tried to do that?
After a some experimenting, I've managed to get the desktop extended across all 3 monitors, by plugging 2 monitors into one card and one into the other, but I'm having no luck grouping the 3 monitors together in the Catalyst control center to activate eyefinity.
CCC is still only giving me the option of 2x1 or 1x2 when I try to create a group.
I am using 2 HD 6970's
1 dell monitor ( max res: 2048 x 1152 )
2 iiyama monitor ( max res: 1920 x 1080 )
3 DVI cabled
1 passive display port adapter
A cable that makes display port to mini display port ( in the box with my graphics card )
So here is my setup:
Iiyama - Dell - iiyama
So my dell is in the middle and iiyamas next to it.
The iiyamas are connected with the regular DVI cables
The dell is connect with a dvi cable to the passive display port
I put my dell his res on same as te iiyamas
In CCC I can only do 2x1 or 1x2 altho he recognizes all 3 screens and all of them work.
@BonanzaG36 You can't have all 3 monitors running through passive adapters, otherwise eyefinity won't work. If you're using adapters for all 3 monitors, then at least one of them must be an active adapter.
You say that your monitors all have DVI output, but what type of combination of inputs do your graphics cards have? HDMI/DVi/Display Port??
One of your adapters must be an active adapter, or alternatively one of your monitors must plug directly into your card without an adapter.