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    MBP screen backlight won't turn on after Standby

    Discussion in 'Apple and Mac OS X' started by Omela, Jan 22, 2009.

  1. Omela

    Omela Notebook Consultant

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    Hi all

    Now almost always when I trying to resume from standby on battery MBP isn't turning on backlight - I can even see MAC OS working normally but screen is off.

    How to fix this?
     
    Omela, Jan 22, 2009
    #1
  2. qhn

    qhn Notebook User

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    Have you tried resetting the System management Controller (SMC)?

    Quote:
    "To reset the SMC on a Mac Pro:

    1. From the Apple menu, choose Shut Down (or if the computer is not responding, hold the power button until it turns off).
    2. Unplug all cables from the computer, including the power cord and any display cables.
    3. Wait at least fifteen seconds.
    4. Plug the power cord back in, making sure the power button is not being pressed at the time. Then reconnect your keyboard and mouse to the computer.
    5. Press the power button to start up your computer.

    Another way to reset the SMC on a Mac Pro computer is:

    1. From the Apple menu, choose Shut Down (or if the computer is not responding, hold the power button until it turns off).
    2. Open and remove the metallic outer door.
    3. Press the SMC_RST switch that is located slightly below and to the right of the row of diagnostic LEDs. Use a non-metallic, non-conductive object, such as a wooden pencil. Note: Mac Pro (Early 2008) does not have an SMC_RST switch, refer to the reset procedure steps in the previous section.
    4. Replace the metallic outer door.
    5. Press the power button to start up your computer..."

    cheers ...
     
    qhn, Jan 22, 2009
    #2
  3. Omela

    Omela Notebook Consultant

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    TNX my MBP is v4.1 late 2008
    I just don't understand where is "metallic outer door."
     
    Omela, Jan 22, 2009
    #3
  4. cdnalsi

    cdnalsi Food for the funky people

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    I think qhn pasted the wrong post, as his refers to the Mac Pro and you have a laptop, a Macbook Pro.

    Found it:
    http://support.apple.com/kb/HT1411
     
    cdnalsi, Jan 22, 2009
    #4
  5. Omela

    Omela Notebook Consultant

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    Done that but it's still don't work Can it be done any other way - this bug start to annoy me :-(
     
    Omela, Jan 28, 2009
    #5