I have a Dell M3800 laptop with a 4K/Ultra HD 15.6" screen. I use a dpi scaling of 200% to enjoy the high resolution screen.

I also like to use a double height taskbar, as I usually have a lot of open programs/windows, and don't like combining the windows. But every time I close my laptop the taskbar resizes to single height.

Has anyone run into this problem before, and is there any way to fix it?

I think the problem might be related to the 200% dpi scaling, because when I open the laptop and it returns from sleep, the login screen is displayed at about 1/2 size in the center of the screen (with big black bars on all sides), but quickly resizes and fills the screen.