File README.updates of Package xorg-x11-server.16221
Xserver module update mechanism ------------------------------- If any corresponding Xserver module is found below "/usr/lib/xorg/modules/updates/" ("/usr/lib64/xorg/modules/updates/" on biarch 32/64 bit platforms) it will be favored over the one in "/usr/lib/xorg/modules/" ("/usr/lib64/xorg/modules/" on biarch 32/64 bit platforms).