You are on to something with the console/terminal. If I type:Code:$ ls /tmp/.X11-unix/ X0
in Gnome-Terminal it works. However, if I log into tty1 and try the same command I get the error:Code:$ export DISPLAY=:0 && zenity --notification --text "This is a test."
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified
Syntax error
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