17

What do the F5 and F6 keys do on the 2011 MacBook Air? They are marked with what I interpret to be small-sunrise and big-sunrise icons. I do not see any effect when I press them.

  • I interpreted them to be "speedometer icon", and almost thought it is for making the processor run faster or slower – 太極者無極而生 Aug 25 '15 at 7:18
27

These are for decreasing and increasing the brightness of the keyboard backlight. When the system senses low light and the keyboard is allowed to illuminate, the keys will work. Otherwise, they silently do nothing at all.

enter image description here

You must log in to answer this question.

protected by grg Oct 4 '15 at 14:13

Thank you for your interest in this question. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).

Would you like to answer one of these unanswered questions instead?

Not the answer you're looking for? Browse other questions tagged .