I normally type startx --:1 in the chrooted environment without any modifications whatsoever. The window should display in the eighth virtual terminal (vt. As for the authentication issue, turn off x authentication in /etc/X11/xdm/xdm-conf, and you won't have to mess with xhost or xauth.If you use kdm or gdm, they each have a config file in /etc/X11/kdm/kdm-config or /etc/X11/gdm/gdm/gdm-config, respectively. Xauth uses authentication from your current enviroment, i think, so it might have flowed thru to the chroot enviroment, but I'm not totally sure of this. I normally turn it off at both ends to prevent this sort of thing for troubleshooting purposes. When done, you might want to turn it back on, if you desire the security of your X sessions.