So I am trying to get X to start on my second (PCI 02.00:00) video card and stop using the main card (PCI 1.00:00). I would like to do this because I want to pass through the PCI 1 card to a XEN HVM VM and use the second card as the main display for the dom0. I am led to believe that only the the first card on the PCI bus is compatible with XEM PCI VGA Pass thou.
I'm using CentOS 6 with XEN 4.1; standard X with VESA drivers for now. Both cards are NVIDIA GeForce 8400 series.
I have played around with custom
xorg.conf by commenting out the references to the first device and screen, but that does not seem to work. I am also familiar with the PCIBACK module and can get the first video card to show up correctly in the
xm pci-list-assignable-devices command.