twinview using non-matched video cards.

Robert Thompson xorg at
Thu Nov 18 18:55:32 PST 2010

Hi Guys,

I am trying to help somebody on UF get their Geforce 9400gt 1G (PCI) 
video card to display Gnome as the primary display on an ECS K7S7AG mobo 
which has a Xabre 200 AGP8X 256-bit GPU video adapter built into it - we 
can't find a way to disable the onboard video card and it has given the 
OP quite some grief.

I think I've seen emails on this list that indicated people were running 
non-matched video cards successfully displaying xinerama, twinview and 
multi head.

I am hoping for some examples of /etc/X11/xorg.conf files that deal with 
non-matching video cards, if you've got one or more please send it to 
me, feel free to save the list the bother and send it to my subscribed 
address, xorg at

Any tips, advice or anything any of you guys think relevant will be very 
gratefully received!


Robert Thompson.

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