2013 rMBP brightness not working

Discussion in 'Mac Basics and Help' started by stract, Nov 17, 2014.

  1. stract, Nov 17, 2014
    Last edited: Nov 19, 2014

    stract macrumors member

    Sep 13, 2013
    I just noticed this tonight so I'm not sure how long it's been going on, but my screen was full bright when I woke my laptop tonight. The F1/F2 keys did nothing to adjust the actual brightness even though the brightness scale displayed on the screen while the buttons were being pushed.

    I had not yet upgraded to 10.10.1., but I have now, with no change in behavior.

    A suggestion to sleep and awaken the computer did not fix the problem. Nor did a restart. Any help would be appreciated! I'm being blinded here, not to mention the extra battery drain this must be causing.

    I have a 13" 2013 rMBP.
  2. stract thread starter macrumors member

    Sep 13, 2013
    no change in behavior when connected to power source vs running on battery either.
  3. MacInTO macrumors 65816


    Apr 25, 2005
    Canada, eh!
  4. stract thread starter macrumors member

    Sep 13, 2013
    so it appears the brightness was reset when I connected my laptop to my Apple tv via airplay. not sure how or why that happened, but it's suddenly working normally again. No idea what I did to fix it, but the problem is resolved (for now).

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