A script I wrote for my boss to configure his displays in a proper way. Have fun, Ralph!

Put the set-display-configuration.sh and toggle-tv.sh somewhere in your $PATH.

Put Display watcher.desktop either in /ect/xdg/autostart/ or in ~/.config/autostart/ depending on who will use it (global or local use).

The Toggle TV.desktop needs to be in either /usr/local/share/applications/ (don't put it in /usr/share/applications/ if you don't use a package manager for this) or in ~/.local/share/applications/. It then will appear in your menu and can easy be added to the panel as launcher.

The script set-display-configuration.sh is running in the background, checking and setting the current display state. The script toggle-tv.sh enables/disables the usage of the third device.

Every reboot will reset the state of the use of the TV output.