When I press the F5/F6 button, the HUD shows a decreasing/increasing bar related to the keyboard's brightness (image).

So far so good… The problem is: the keyboard stays completely dark, no light is emitted from the keyboard, even though the bar is moving when I press the keys F5 and F6.

I've already tried to reset PRAM and SMC but it didn't fix my problem. What should I do?

  • Image is in a private area. Post to somewhere like imgur, flikr & paste the link here; then someone with the necessary reputation can inline it for you
    – Tetsujin
    Dec 20, 2015 at 0:07
  • 1
    @Tetsujin done! Dec 20, 2015 at 0:18

1 Answer 1


If you go to Keyboard in System Preferences, there is a check box titled "Adjust keyboard brightness in low light". If that is turned off, does your problem still present itself?

  • @PauloWaldo yes, it does. I`ve already tried both opitions but no nothing changed =/ Dec 20, 2015 at 19:59

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