X Server & PCI-hardware address

[Martin Mundschenk <martin@mundschenk.de>]

Hi!

I just installed debian on an old world g3. Running lspci to figure  
out the hardware address of the graphic card brought out the address  
00:16:00.  When I start the X Server, it does not find a screnn  
though. Still I can read in the log that i suggests to use 00:18:00  
instead. Changing the address to that value works.
Why does lspci deliver the wrong address for the ati rage card?

Regards,
Martin

PS: Even though the X Server starts, the picture sucks, because the  
resolution settings don't seem to be right. I'm running an apple  
grayscale monitor with 640x480 pixels. Does anyone know the correct  
settings?