NVIDIA-Linux-x86-1.0-8756-pkg1.run --help
--x-module-path=X-MODULE-PATH
The path under which the NVIDIA X server modules will be
installed. If `pkg-config --variable=moduledir
xorg-server` is successful and returns a directory that
exists, then that is the default; otherwise, this value
defaults to the X prefix (which defaults to '/usr/X11R6',
but can be overridden with the '--x-prefix' option) plus
lib/modules.