(camorama:9827): Gtk-WARNING **: cannot open display:

Usage: camorama [OPTION...] --load-modules=MODULE1,MODULE2,... Dynamic modules to load Help options -?, --help Show this help message --usage Display brief usage message Application options -V, --version show version and exit -d, --device=STRING v4l device to use -D, --debug enable debugging code -x, --width=INT capture width -y, --height=INT capture height -M, --max maximum capture size -m, --min minimum capture size -H, --half middle capture size -R, --read use read() rather than mmap() GTK+ --gdk-debug=FLAGS Gdk debugging flags to set --gdk-no-debug=FLAGS Gdk debugging flags to unset --display=DISPLAY X display to use --screen=SCREEN X screen to use --sync Make X calls synchronous --name=NAME Program name as used by the window manager --class=CLASS Program class as used by the window manager --gtk-debug=FLAGS Gtk+ debugging flags to set --gtk-no-debug=FLAGS Gtk+ debugging flags to unset --g-fatal-warnings Make all warnings fatal --gtk-module=MODULE Load an additional Gtk module Bonobo activation Support --oaf-ior-fd=FD File descriptor to print IOR on --oaf-activate-iid=IID IID to activate --oaf-private Prevent registering of server with OAF GNOME Library --disable-sound Disable sound server usage --enable-sound Enable sound server usage --espeaker=HOSTNAME:PORT Host:port on which the sound server to use is running --version 2.32.1 Session management --sm-client-id=ID Specify session management ID --sm-config-prefix=PREFIX Specify prefix of saved configuration --sm-disable Disable connection to session manager GNOME GUI Library --disable-crash-dialog Disable Crash Dialog