I have just installed Arch Linux, and pacmaned the packages gnome and xorg. I can run the startx command just fine, but when I make gdm.service run at startup, Arch completely freezes, with just the linux kernel boot screen and a cursor in the center of the screen. I am not running VirtualBox, and I am installing alongside Ubuntu, if that helps. I am running Arch on a 10 year old craptop.
Edit: I have installed SDDM, but cannot log in as there are no profiles to log in to.