https://bugs.freedesktop.org/show_bug.cgi?id=26891

--- Comment #49 from Anonymous Helper anonymous@dodgeit.com --- (In reply to comment #48)

What do you mean by "make sure you add the PCI IDs to the xorg for both cards"? The driver should autodetect the cards fine. However for systems with multiple VGA cards, you may have to manually specify which ones you want to start X on.

Currently my xorg.conf.d directory contains the following config:

$ cat /etc/X11/xorg.conf.d/* Section "Device" Identifier "Radeon Graphics" BusID "PCI:1:0:0" EndSection Section "Device" Identifier "Intel Graphics" BusID "PCI:0:2:0" Driver "intel" Option "AccelMethod" "sna" #Option "AccelMethod" "uxa" #Option "AccelMethod" "xaa" EndSection

Is the BusID line in the intel device section not needed? What is needed for X to automatically detect multiple GPUs properly and show some video output from the correct card?