https://itunes.apple.com/us/app/brightness-slider/id456624497?mt=12 https://itunes.apple.com/us/app/brightness-slider/id45662449... Brightness Slider. It's no

https://itunes.apple.com/us/app/brightness-slider/id456624497?mt=12 https://itunes.apple.com/us/app/brightness-slider/id45662449... Brightness Slider. It's not perfect but it lets me adjust my monitor brightness. Ironically a cheap Chromebox could do it for the same monitor using brightness buttons on the keyboard just as my MBP does with its screen.