I got a "radeon 9100 igp pro", i use xorg 7.0 and would like to get dri working but :

$ dmesg | grep gart
[4294683.055000] Linux agpgart interface v0.101 (c) Dave Jones
[4294683.101000] agpgart: Unsupported Ati chipset (device id: 7833)

$ dmesg | grep drm
[4294685.040000] [drm] Initialized drm 1.0.1 20051102
[4294685.088000] [drm] Initialized radeon 1.23.0 20060225 on minor 0:
[4294728.404000] [drm:radeon_cp_init] *ERROR* radeon_cp_init called without lock held, held  0 owner 00000000 98f70480
[4294728.404000] [drm:drm_unlock] *ERROR* Process 5157 using kernel context 0

i HAVE ati-agp as a module, but it seems the (device id: 7833) is not suported.

Can't i use pcigart instead ?

i set in xorg.conf :
 BusType "PCI"
but that doesn't change anything.

Any ideas ?