Sometimes Can't Turn Off / Adjust Keyboard Lighting

Discussion in 'MacBook Air' started by jason.siegel, Sep 12, 2012.

  1. macrumors 6502

    Joined:
    Jun 15, 2011
    #1
    When I'm in full lighting, often I find that I can't adjust or turn off my keyboard lighting. When I click one of the lighting buttons, there is a "no" (crossed out circle) symbol below the grayed-out lighting icon.

    Any ideas what's going on? Thanks.
     
  2. macrumors regular

    Joined:
    Nov 9, 2008
    Location:
    Thousand Oaks, CA
    #2
    Goto the Apple in the top left corner > system preferences > keyboard and then uncheck the automatically adjust keyboard brightness.
     
  3. thread starter macrumors 6502

    Joined:
    Jun 15, 2011
    #3
    That does work, thanks, although I don't understand why that would be causing the problem unless the light sensor is broken. If I'm in full light, shouldn't it turn off?
     
  4. macrumors regular

    Joined:
    Nov 9, 2008
    Location:
    Thousand Oaks, CA
    #4
    I'd think so...but all light sensors seem to suck in all devices, so I never use auto-brightness at all.
     
  5. macrumors regular

    Miguel Cunha

    Joined:
    Sep 14, 2012
    Location:
    Braga, Portugal
    #5
    Check your computer

    Sometimes that happens to me in several macs (iMac, MacBook Pro).

    In mosts cases, a restart is enough, propvided that as sson as you see the the desktop you hit the light buttons.

    When that doens't work, I run Disk Utility or other disk maintenance optimization application like this, booting externally, or this, and try to repair permissions, rebuild directory or clear unecessary files on your system and restart again.

    Also, check if your computer isn't running low on RAM, overly stuffed with startup items or HDD isn't almost full.

    I hope this helps.
     
  6. macrumors 6502a

    007bond

    Joined:
    Dec 12, 2008
    Location:
    DFW, Texas
    #6
    I thought this was by design, but I could be wrong. To my understanding, you're only allowed to adjust the brightness if it is dark.
     

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