DRI Driver update mechanism
---------------------------

If any corresponding DRI driver is found in
"/usr/X11R6/lib/modules/dri/updates/" it will be favored over the one
in "/usr/X11R6/lib/modules/dri/" and will be used for 32/64 bit
applications.

On 32/64 bit biarch platforms additionally a corresponding DRI driver
in "/usr/X11R6/lib64/modules/dri/updates/" will be favored over the
one in "/usr/X11R6/lib64/modules/dri/" and will be used for 64bit
applications.