Backlight toggles occasionall stops working?

Discussion in 'MacBook Pro' started by dazmanuk, Jul 18, 2012.

  1. dazmanuk macrumors newbie

    Joined:
    Jun 25, 2012
    #1
    Hi guys.

    Weird one this.. or might not be, I just don't know / can't think of the reasons behind it.

    Occasionally, my backlight keys stop working temporarily. I've noticed it's usually after I 'brighten' the screen display.

    When it ceases to work, the backlight can either be on, or off.. whatever it's current state before i press the button. It just means that I cannot toggle brigher / dimmer.

    The icon that displays is this one:
    http://i.imgur.com/bP8Dc.png

    Anybody have any ideas?

    (PS. this seems to happen at all battery charge statuses, including via mains)
     
  2. dazmanuk thread starter macrumors newbie

    Joined:
    Jun 25, 2012
    #2
    FIXED:

    Apologies, did a bit of further researching.

    It's to do with the abient light sensor right next to the webcam. If you hover your finger over it, it'll then allow you to light/dim the keyboard backlight.

    To disable this setting simply unckeck the 'Automatically illuminate keyboard in low light' tickbox within System Preferences -> Keyboard. This will then disable that sensor and it'll be fully manual then.

    [​IMG]

    Thanks :D
     

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