External monitor resolution problem

Hi,

I’ve installed Budgie Atomic on my Dell XPS 9315 and it is fantastic, save for a few quirks.

I have a portable monitor that connects through USB-C and is correctly detected by the system and happily works as one would expect. The problem is it being twice the resolution as the laptop display: 3840x2400 v. 1920x1200 so everything is half the size (or a fourth the size depending on how you prefer your math).

Using the Budgie Control Settings > Displays, I set the display of the external monitor to 200%. Applying the setting states the system needs to be restarted to take effect. I guessed only the X system does, but regardless of logging out and back in or restarting results in both screens being zoomed to 200%. The external monitor looks correct and the laptop display is not. The Displays settings indicates both are 200%. Setting the laptop display to 100% results in both displays being set to 100%.

Is there some way to ensure the displays are set to the correct zoom for the corresponding screen? It seems the Display settings wants to keep them the same zoom setting.

Thanks.