[bananasbandanas]

Couldn't display-switch send a keypress (something that doesn't do much otherwise, like F15) automatically?

You could probably get that result at the moment using the external command feature and something like xdotool (on Linux)

[pm215]

Yes, or send a fake mouse move. It does this already when running on Windows or OSX; there's an open issue for adding the Linux host support: https://github.com/haimgel/display-switch/issues/27

I reckon it's probably 25 or 30 lines or Rust if you make it use the uinput crate to create a fake input device and send a mouse-move event that way.