Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a mid-2011 Macbook Air. Sometime in the recent past, the Function key row (which I used for volume control, brightness control, keyboard backlight control, etc) has stopped working.

By stopped working, I mean it seems like those keys have been remapped. For example, the "increase volume" function key shows the widget screen (with the clock, calculator, etc). Another function key shows the app dashboard.

I fiddled around with all the available keyboard settings in "System Preferences" but got nowhere.

Once, after a reboot, the function key functionality was reinstated, but all too briefly. After a few hours, the errant behavior has resumed.

Any pointers or ideas?

share|improve this question

Without knowing what programs you have installed that could be doing that: Like some keyboard remapper...

  • Log in as different user to make sure there is not something in you profile preferences


  • Start in Safe mode to exclude other applications.

Then start applications one by one to find out who is doing it.

Also check this setting in System preferenceenter image description here keyboard:

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.