Huh? On Win10Ent I've got both of my displays set to different scaling factors and changes take effect immediately (like, as soon as I release the slider).
It works for me, with one annoying caveat. I have a set of regular 1920x1080 monitors on my desk at 100% scaling. My laptop has a 4k screen, and when I plug it in, I have it set to turn off that screen.
I have to log out when I plug/unplug or the windows will end up blurry or the wrong size.
Have you ever tried shouting at Microsoft about this?
I know they have a bad track record of not listening, but I think things might be different now, they seem to be a bit more receptive to feedback, particularly with the beta updates.
Or maybe I'm remembering the prerelease "hai where r the bugz halp" back when Win10 was not yet RTM...
