How can I find the BusID?

[lina <lina.lastname@gmail.com>]

Hi,

I don't know how to find the BusID for:

xorg.conf

Section "Device"
	Identifier  "aticonfig-Device[0]-0"
	Driver      "fglrx"
	BusID       "PCI:1:0:0"

(Here the one seems not correct) cause there is an warning:
 No matching Device section for instance (BusID PCI:0@1:0:1) found

# lspci | grep VGA
01:00.0 VGA

I changed it to

          BusID "PCI:01:00.0"

It has problems and generated more than 500 Xorg.*.log files before I reboot.
Xorg.118.log      Xorg.158.log.old  Xorg.199.log      Xorg.238.log.old
 Xorg.279.log      Xorg.33.log       Xorg.47.log       Xorg.79.log.old
...

Another question, How do I check whether there is a 3D acceleration,
seems 2D have.

Thanks with best regards,