FWIW my problem with g-d-p was that it wasn't enough to drag the laptop screen to the side of the external screen. Apparently I had to explicitly click on the external screen, and then change the resolution from "Off" to something sane. I wish g-d-p automatically chose the preferred resolution when you indicate you want an extended desktop by dragging the monitors around.
FWIW my problem with g-d-p was that it wasn't enough to drag the laptop screen to the side of the external screen. Apparently I had to explicitly click on the external screen, and then change the resolution from "Off" to something sane. I wish g-d-p automatically chose the preferred resolution when you indicate you want an extended desktop by dragging the monitors around.