F16 - Adding a second video card

[Jeffrey Ross]

I have an older motherboard/processor (Intel DG965RY with a Pentium D) 
the system has an integrated video adapter (82G965) and I'd like to add 
a second video Card (PCI card ATI RAGE IIC) I'm not looking for fast 
video but would like to use 2 monitors.

I put the ATI card in the machine and an lshw shows the card:

        -display UNCLAIMED
                         description: VGA compatible controller
                         product: 3D Rage IIC 215IIC [Mach64 GT IIC]
                         vendor: ATI Technologies Inc


When I first booted the system with the card, the BIOS made the ATI card 
the primary and once X started the system went blank, changed the bios 
to force the integrated card to be primary and everything works as 
before, however I don't know how to tell X that there is a second video 
card and to start using it.

What's the magic command that I'm unable to find?  From the GUI I've 
checked displays under system settings but I only see my integrated 
video interface, and "detect displays" produces nothing but the existing 
display.

Thanks,

Jeff
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