My main macbook air screen turned dark all the sudden. I can see the brightness button is functional as I see the dot moves when I press it on the keyboard but the actual brightness of the screen does not change. I am making it work by connecting it to a monitor but how do I fix the brightness of my main screen? Thanks in advance.
MacBook Air 13″, OS X 10.11
Hi there kyd20,
Thank you for choosing Apple Support Communities!
It sounds as though the display turned off on your MacBook Air and is not turning back on when using the brightness keys. You're in the right place, and we'd be glad to assist in seeking a solution.
Below is a resource that can help:
Reset NVRAM or PRAM on your Mac
This resource includes steps to reset the NVRAM or PRAM of your Mac which can resolve issues with the display.
We hope this helps,
Cheers!
macbook air - screen is dark, the light switch on keyboard functional but doesn't change the brightness
