13" aluminum unibody, 2.0 or 2.4 GHz Core 2 Duo processor.

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Black screen but external display works.

Hi,

The screen on my MacBook (Late 2008) does not work. An external display works well. However, when I go to system preferences -> display, it's as though the 13" display does not exist. I have tried removing the battery, and resetting the NVRAM. Any suggestions are welcome

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You can try disconnecting the display cable and reconnecting it. It's step 9 in this guide:

MacBook Unibody Model A1278 LCD Panel Replacement

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Thanks Michael. It turns out that the cable was damaged and must be replaced. I am going to let a professional do it.

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Philip Huffman will be eternally grateful.
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