I'm running on a Retina MacBook Pro, where Windows's HiDPI support is abysmal. On OS X, the main display is run in a 2x mode and secondary displays are run normally, but that feature isn't available in Windows.
I have the OS scaling setting set to 200%, and I have a 1280x720 display connected. Unfortunately since the second display isn't retina, I only get 640x360 usable screen space. Is there a program I can use to force the second display to render at 2x resolution and scale the image down on the GPU so I can make use of it?
I realize that it will be a bit of a blurry mess, but most of Windows already is a blurry mess on my main display so I am okay with that.