(just realised I wasn't subscribed)

Could it be that xsrc's i810 module knows about i915 etc. cards,
but expects /dev/agp* which doesn't know about i915 etc. cards...

vga0 at pci0 dev 2 function 0: Intel 82915GM/GMS,82910GML Integrated Graphics De
vice (rev. 0x03)

(It isn't clear to me whether or not agp is necessary)

Cheers,

Patrick