I recently noticed that I have no control over the screen brightness on my 2015 MBP 15" in Windows 10. It's not a keyboard issue, since the volume and keyboard backlight adjustments work properly. There is just literally no control anywhere of the backlight brightness. Any of the typical adjustments are gone, there's no slider in power settings, none of the Action Center buttons are enabled, etc. It's like it's just completely vanished.
I'm relatively certain it worked at one point, but it's now gone without a trace. I've re-installed the latest BC 6.0 drivers and still nothing. Any ideas?
