macbook pro turns on but screen stays black — my solution

Saturday, June 5, 2010 - 1:26 pm
By Colin

The Apple Macbook Pro would turn on, but the screen would not.  The screen would stay black.  I could tell the computer was on because when I hit the “caps lock” key, the green light on the key would turn on and off.

I fixed this the following way (this is basically resetting the Power Management Unit — PMU):

I disconnected the computer from the power cord, and from all other cables.

I held down the power button for several seconds to turn off the computer.

I let it sit 5 minutes.

I restarted the laptop while holding down the Shift key.  This restarted the computer in Safe Mode, with the screen visible again.

After I logged in (in Safe Mode) to make sure everything was ok, I simply restarted the computer the normal way, and the screen behaved normally again.

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If that doesn’t work for you, you could try these steps, documented at apple.com:

Holding down Command, Option, P, and R to reset your PRAM and NVRAM

Resetting PowerBook and iBook Power Management Unit (PMU)

408 Responses to “macbook pro turns on but screen stays black — my solution”

  1. Lol25

    Resetting nrvam worked for me I am so happy thank u

    #156512
  2. Cool bean

    Aww thanks maan you were awwsome I was
    Just gonna spend 180$ for new display screen thanks man

    #156653
  3. Colin

    Glad the info helped! Happy New Year!

    #156655
  4. Caro

    I tried everything I found online and nothing worked ! Fed up !

    #156719
  5. Rico

    Before going and buying a new motherboard for 1000$. Have just the video card chip replaced for 150-250$. eBay/google it. I got mine fixed that way and it runs perfect now! Also Apple has a recap on that which is expiring this year sometime(2016)

    #156729
  6. Boban

    Resetting NVRAM worked… thank you very much.

    #156809
  7. Thank you for your solution :)
    It works!!!

    I told the computer technician at the IT department the trick to deal with that problem and they thanked me.

    #157000
  8. Elizabeth Seidl

    Thank you so much this just saved my life!

    #157003

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