Docking and undocking Surface Pro 4 with 2 external monitor setup

My Surface Pro 4 screen stops working when I undock it; it goes dark and flickers at 4-5 second intervals but nothing shows on the display. I want to be able to dock and undock easily and for the displays to switch seamlessly each time between docked (2 external monitors only, i.e. not using the Surface Pro screen) and undocked (using the Surface Pro 4 away from my desk, in meetings, conferences etc.).
I am using a setup with a Surface Dock and 2 external monitors, both Dell 23" P2314H.
Any pointers appreciated.

from Windows Central Forums http://ift.tt/2905zJH
via IFTTT