Q: Why does my screen not activate when I open the lid?
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Nov 6, 2013 8:45 AMby judysings,Hi BonduScience,
Welcome to the Support Communities!
Have you updated your OS to Mavericks? If so, the power button is now used to wake the computer.
OS X Mavericks: Using the power button
http://support.apple.com/kb/HT5869
OS X Mavericks updates the power button behavior on Mac computers.
Using the Power Button to Sleep & Wake
Tap the power button in Mavericks to put your Mac to sleep or to wake it up:
- Tap the power button once to put your Mac to sleep.
- Tap the power button again to wake your Mac.
Press the power button for less than a half a second to sleep or wake your Mac. This duration is similar to pressing the Space bar or Return key to wake your Mac. The power button works this way across all Macs using OS X Mavericks, including both notebook and desktop computers.
OS X Mavericks: Log out, sleep, and shut down
http://support.apple.com/kb/PH13962If trying this new behavior does not resolve your issue, additional troubleshooting steps would be to reset the system SMC and PRAM.
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
OS X Mavericks: Reset your computer’s PRAM
http://support.apple.com/kb/ph14222
Cheers,
- Judy
