Why do they say this ;If you already have an X config file working with a different driver
(such as the 'nv' or 'vesa' driver), then all you need to do is find
the relevant Device section and replace the line:
(or Driver "vesa")
In the Module section, make sure you have:
You should also remove the following lines:
I have the same problem on some dist. and others go without a hitch,never did leave load dri in there may try that next time.