Can not adjust Brightness in Windows 10
My Macbook Pro is the model of later 2015 with AMD R9 M370X.
I installed windows 10 through bootcamp.
By now, all the drivers of bootcamp is up to date.
everything works well in EI Capitan, while in Win10, I can not adjust screen brightness, but the keyboard backlight adjustion works. It's too bright for me to work for a long time.
MacBook Pro with Retina display, OS X El Capitan (10.11.5)