Moving from Nvidia to Ati on Linux

19 12 2007

Being a gamer, I use the proprietary Linux drivers and with the recent Ati activity, have found cause to move over.
I’ve just finished my first move and found a few gotchas along the way. Here is a method to avoid them.

1.) Remove the nvidia driver.

As root, run sh NVIDIA-Linux---pkg.run --uninstall

2.) Install the ati driver in the same manner you would a nvidia one. You can get them from here

3.) If all went well, you’ll still need to edit your xorg.conf. Although the ati install had edited it, it still left behind the nvidia parts and didn’t fix the nvidia tweaks.

In Section “Module”, add
Load "GLcore"
Load "dri"

They were removed with the nvidia install.

In Section “Screen”, I found that no modes had been entered.. :/

ie. Modes “1200×1024” “1024×768”

Lastly, you’ll need to re-add the Section “DRI”,

Section "DRI"
Group 100
Mode 0660
EndSection

This assumes your a member of the group users, if not edit /etc/group


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