Originally posted by kelvinhbo
do i just edit xfree86.config and replace the section device driver ''fglrx'' with ''radeon''?
Chances are your config file was created through "fglrxconfig", if you followed the right procedure trying to install Ati's driver, and while just changing "fglrx" for "radeon" could work, it's sure to turn up some errors, at best., both drivers don't recognize the same "Options".
Depending on the X server and distro you are using, there's different commands [...xf86cfg, xf86config, XFree86 -config, xorgcfg, xorgconfig] available to write your new config, then you can refer to "man radeon" to tweak it.
If you don't have that man page included, you can find it on the net here