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Re: How can I find the BusID?



lina (lina.lastname@gmail.com on 2011-12-11 00:33 +0800):
> 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

Your line is correct. The reason for the warning is that your card is
dual-head, and both heads have their own pci address. The message is
harmless as both fglrx and radeon understand the second head without
needing it configured.

> # lspci | grep VGA
> 01:00.0 VGA
In my case:
01:00.0 VGA compatible controller: ATI Technologies Inc RV350 AS
01:00.1 Display controller: ATI Technologies Inc RV350 AS (Secondary)

Which is why the second controller doesn't show up, apparently it isn't
VGA-compatible :)

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

Besides the direct rendering, you can also check the opengl version:
$ glxinfo|grep -i opengl
OpenGL vendor string: X.Org R300 Project
OpenGL renderer string: Gallium 0.4 on ATI RV350
OpenGL version string: 2.1 Mesa 7.11.1
OpenGL shading language version string: 1.20


Regards,
Arno


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