How? As per subject I am trying to get something other than a basic single screen screen running on this dual port GPU.
i've just finshed trying amdgp, radeon 7 ati drivers under wheezy and stretch and it is a total wipeout. All ii can get working is a copied default single screen under vesa driver. I would prefer the open source, but on reverting to the AMD proprietary, fglrx, it seems even that is now denied as Stretch no longer meets the xorg conditions. FYI. I've previously had a AMD HD7790 running earlier proprietary driver. at this stage, it seems thatmy only alternastive to get this working is to go proprietary under suppled packets for RH, Ubuntu, etc.