are the monitors that you are using identical? When creating groups the driver will calculate the available resolution for the group based on the native timing reported by the monitors. If all monitors report 1920x1080 the group resolution should be 5760x1080 or 3240x1920 in portrait mode. If this is not the case it might be that the monitors are reporting different native resolutions.
What is actually the resolution you are getting after grouping all 3 monitors?
That’s what I thought I would be getting , but unfortunately it was only
giving me options that weren’t even close, we have come to the conclusion
that the screens weren’t reporting 1080x1920 but when I only have one
monitor it does, when I group them it’s not even close. We uses the edid
emulator to fool it into thinking it was a 1080 screen but I want to see if
there is another solution.
From: chm email@example.com
Sent: Tuesday, May 22, 2012 12:36 PM
To: Daniel Enriquez
Subject: Re: FIREPRO 2460 eyefinity | AMD Developer Forums
AMD Developer Forums <http://devgurus.amd.com/index.jspa>Re: FIREPRO 2460
in FirePro Development
I am sorry but for now I do not see another option than to emulate an edid reporting 1920x1080 on all displays.