I installed Debian Wheezy with no desktop environment as I would like to use lightweight dwm window manager instead. However, as a first step, I need to install xserver. I would like to install minimal components needed for running the xserver. What are the exact components(binaries, libraries, configuration files, etc) needed to run xserver? Obviously xinit(starts X server session), but what else? Or are the components needed for running xserver so scattered that practically one needs to install xserver-xorg package which will handle all the dependencies needed?