question about the macbook air's keyboard backlight

Discussion in 'MacBook Air' started by kevinf1990, Feb 4, 2012.

  1. kevinf1990 macrumors member

    Joined:
    Aug 15, 2011
    #1
    I just recently got a new macbook air and am loving it so far. I just have one question and want to see if its normal or happening to anyone else. basically when i'm under regular living room lamps and lights the keyboard backlight turns on brighter but dims down when i turn off the light. the backlight does completely turn off when i'm in sunlight which i know is normal though. but i would like to know if the backlight for the keyboard is supposed to dim when under dark condition. i've searched and some people say its normal and some people say it's not.

    i guess i can understand the theory behind this where the backlight should dim so that it's less harsh on the eyes in the dark. is this true for everyone else though? please test it out on your laptops. basically just cover the camera and see if the backlight brightens or dims.

    thanks
     
  2. Macman45 macrumors demi-god

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #2
    Perfectly normal....In dark conditions as opposed to daylight you may not even notice the difference.

    A simple test:

    Have your MBA up and running in a dark room

    Turn on a lamp as close to it as you can get and watch it change.
     
  3. kevinf1990 thread starter macrumors member

    Joined:
    Aug 15, 2011
    #3
    but i don't get why the backlight should be turned on at all under normal room lighting though
     
  4. mrsir2009 macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #4
    Or, better yet, put your thumb over the sensor (I assume its next to the camera like on the MacBook Pros).

    ----------

    Because it looks pretty ;)
     
  5. kevinf1990 thread starter macrumors member

    Joined:
    Aug 15, 2011
    #5
    yeah that's exactly what i did. i was in a moderately lit room and covered the sensor and the keyboard backlight went dim. i guess it is normal then :\
     
  6. kkdart macrumors newbie

    Joined:
    Feb 5, 2012
    #6
    Yes your ambient light sensor is working. But is it the isight or a dedicated sensor?:confused:
     
  7. Comeagain? macrumors 68020

    Comeagain?

    Joined:
    Feb 17, 2011
    Location:
    Spokane, WA
    #7
    Dedicated sensor. The iSight is only on when the led is lit.

    I'm guessing it's on often because a lot of people like it. And when it's not needed, it is dimmed to conserve battery.
     
  8. mrsir2009 macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #8
    If you look real close to the iSight camera you'll see a tiny sensor to the left of it.
     
  9. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #9
    This is normal behavior. If the backlight annoys (as it annoys me) I recommend disabling it all together. In a lit environment you can see the keys. In a dark environment, the screen will light the keys. That said I touch type, so the backlight isn't needed.
     
  10. Poindexter333 macrumors member

    Joined:
    Jul 6, 2010
    Location:
    NYC metropolitan area
    #10
    FWIW there is a free app called "Lab Tick" that can force the keyboard light to always stay on- which I prefer. I loved it on the MBA Rev A, and the lack of a keyboard light kept me from buying a replacement MBA until the latest version.

    Something about the lighting just "feels right."

    I still don't touch type, so I glance at the keyboard often. And I usually use my MBA in a very darkened room.
     

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