ARUBA does use r600. I have a A8-5500 with 7560D and it uses r600. The Trinity (and Richland probably) IGPs all use it.
Originally Posted by CalcProgrammer1
The radeon driver might initialize both cards, but xorg is another matter:
Xorg is using the first card. I dont think you can use 2 cards at once in xorg, you should set it up specifically for one of them in xorg.conf based in the PCI ID.
[ 10285.686] (==) No device specified for screen "Default Screen Section".
Using the first device section listed.
[ 10285.686] (**) | |-->Device "7660G"
Notice the * in front of the first card (the IGP):
[ 10285.687] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 10285.688] (II) xfree86: Adding drm device (/dev/dri/card1)
[ 10291.463] (--) PCI:*(0:0:1:0) 1002:9900:103c:1831 rev 0, Mem @ 0xd0000000/268435456, 0xf0400000/262144, I/O @ 0x00004000/256
[ 10291.463] (--) PCI: (0:1:0:0) 1002:682f:103c:1831 rev 0, Mem @ 0xe0000000/268435456, 0xf0300000/262144, I/O @ 0x00003000/256, BIOS @ 0x????????/131072