New MBP do not lock brightness properly

Discussion in 'MacBook Pro' started by lily69, Apr 16, 2010.

  1. lily69 macrumors regular

    Apr 4, 2010
    Wonder it's just me or hardware/software issue.

    If I set brightness at 50% with power adaptor on, and sleep, unplug, open lid or do vice versa, the next time when the MBP wake up, the brightness either goes to lowest setting or highest, very annoying. Sometimes I see keyboard light did the same thing but not as frequent as screen backlit.
  2. spinnerlys Guest


    Sep 7, 2008
    forlod bygningen
    Display: System Preferences > Displays > Automatically adjust brightness as ambient light changes

    Keyboard: System Preferences > Keyboard > Illuminate keyboard in low light conditions
  3. lily69 thread starter macrumors regular

    Apr 4, 2010
    Thanks for the great reply!

    I can see how I disable keyboard backlit.

    However, the screen brightness change is not ambient light related. It's under same light condition and it will change after wake up. The slide will not stick for some reason.
  4. MBHockey macrumors 68040


    Oct 4, 2003
    New York
    Have you tried resetting the SMC and/or pram?

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