hey guys... little bit new to ubuntu here but hey.

1:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV790 [Radeon HD 4800 Series] [1002:9460]
01:00.1 Audio device [0403]: ATI Technologies Inc HD48x0 audio [1002:aa30]
02:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV790 [Radeon HD 4800 Series] [1002:9460]
02:00.1 Audio device [0403]: ATI Technologies Inc HD48x0 audio [1002:aa30]

lspci shows both cards are installed, both cards work with 4 way display on winblows, however the secondary card is shown as "unknown" by the drivers, and just flat out isn't displayed anywhere but lspci without the drivers

Trying to get quad monitor setup on ubuntu, no crossfire, & cant seem to work out how to activate the secondary GPU...