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How do I configure X to use ATI 3D accelerated graphics

These notes are for an ["Xorg"] based ["xserver"]. To install the ATI Radeon drivers on an ["XFree86"] installation, see ["ATIHowToXFree86"].

ATI Radeon cards 8500,9000,9200 and 9250 work with Open Source drivers and support ["OpenGL"] 3D Graphics.

To configure X to use accelerated 3d drivers, the configuration file /etc/X11/xorg.conf should be edited as follows:

 Section "Device"
        Identifier      "ATI 3D"
        Driver          "ati"
 EndSection

 Section "Screen"
        Device          "ATI 3D"

Install the required libraries

It is necessary to install driver libraries, in order for the 3D capabilities of the card to be utilized:

 apt-get install libgl1-mesa-dri

questions

  • is there an overview which can be linked to from here?
  • is there something on how to test if it is working, resp. troubleshooting? a) A way to tell if 3d accelerated graphics are working is to use the glxinfo tool. This will return a string containing the word "yes", if 3d graphics are enabled and working:

glxinfo|grep render

See Also

["ATIHowToXFree86"] Configuring XFree86 to use ATI 3D accelerated graphics

["ATIProprietary"] Installing the closed source proprietary driver