What I want is a terminal command that would activate internal display in case it is de-activated in Xfce. (Then, I could run this command by a script+shortkey and get a solution to this problem). The help of Xfce4-display-settings gives this
~ $ xfce4-display-settings -h Usage: xfce4-display-settings [OPTION...] Help Options: -h, --help Show help options --help-all Show all help options --help-gtk Show GTK+ Options Application Options: -s, --socket-id=SOCKET ID Settings manager socket -v, --version Version information -m, --minimal Minimal interface to set up an external output --display=DISPLAY X display to use
I am interested in this:
--display=DISPLAY X display to use
I guess it means that the command
xfce4-display-settings --display=DISPLAY would activate the given DISPLAY.
What to enter there in place of
DISPLAY that would be the internal display?
What for the external display?