Bug#280738: Acknowledgement (xserver-xfree86: When installing with a radeon 9200 SE (1002:5964) the ati wrapper doesn't recognize it, radeon is ok)
Ah, i guess the problem comes from the card having both a radeon pci id and a
second function which is listed as 1002:5d44, which displays as ATI
Technologies Inc RV280 [Radeon 9200 SE] (Secondary) in lspci output, and it is
this one that X is matching, not the primary one X knows about.
Adding BusID PCI:1:8:0 doesn't seem to help here.