Re: Switch between laptop display and external monitors on a docking station
You might have set your xorg to have the external monitor as the primary display. Have an alternate xorg that has the laptop screen as primary, that's an option. Another would be to have Metamodes, if your xorg has that line, set the external monitor to null as one of the choices for display layouts. But I think xrandr can do that as well via command line, so let's have an xrandr guru step in to tell us how, or you may want to google that yourself.