Multiple card setup possible?

[Paul Boehmer]

I am getting ready to build a new workstation and was curious to see if 
anyone has any idea on when multiple cards will be supported (if at all). 
I have a ATI 9450 and a dual head ATI 9250 card, but have not been able to 
get them to work together, though they work individually.

My current workstation is still on an older version of Xorg that is 
currently using a Nvidia card and two Matrox cards to power three heads. 
It would be nice if I could retain this setup, but with newer cards 
listed above.

When both cards are installed, I get the following error in Xorg.0.log:

------- Snip ---------
(II) Loading sub module "fbdevhw"
(II) LoadModule: "fbdevhw"
(WW) Warning, couldn't open module fbdevhw
(II) UnloadModule: "fbdevhw"
(EE) Failed to load module "fbdevhw" (module does not exist, 0)
(WW) Falling back to old probe method for fbdev
----------------------

full log @ http://www.pboehmer.com/Xorg.0.log

>From what I understand (could be way off), the problem is related to the 
VGA arbiter in libpciaccess.  This is a little over my head, but I would 
be more than welcome to try any patches or any other suggestions.

Thanks.