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I am running into problems with my Macbook running OSX 10.6.

Sometimes when my machine returns from sleep. The keyboard and trackpad stop functioning.

I have to plug in a usb mouse and restart the machine to return functionality to my keyboard and trackpad.

Any ideas?

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up vote 1 down vote accepted

I would assume there is an issue with something in the sleep and wake code. Do you have any support contract or warranty with Apple? That would be your best bet.

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Yes. I do have Applecare. I guess I should put it to use. Thanks for the reply. – CT. Jan 8 '10 at 15:30

For anyone else having a similar problem, try an SMC reset first.

Intel-based Macs: Resetting the System Management Controller (SMC), TL;DR version:

Resetting the SMC on Mac portables with a battery you can remove

  1. Shut down, disconnect the power adapter, and remove the battery.
  2. Hold the power button for 5 seconds.

Resetting the SMC on portables with a battery you should not remove on your own

  1. Shut down.
  2. Hold left ⌃, ⌥ and ⇧ and the power button for 5 seconds.

Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve

  1. Shut down and disconnect the power adapter.
  2. Hold the power button for 5 seconds.
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