how to wake up mac pro when screen is frozen

I’m constantly moving my MacBook around from a Thunderbolt display at my desk to various conference rooms with HDMI and VGA projectors at work and to an HDMI monitor at home. This is the first time I’ve had the issue in nearly a year of daily use. Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.

Press the power button to turn on the computer.Release all the keys and the power button at the same time.On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.This seems to have fixed the issue. Note that this will reboot the MacBook, so you will lose any unsaved work.

I followed the instructions for “Resetting the SMC on portables with a battery you should not remove on your own” which includes MacBook Pro (Early 2009) and later, all models of MacBook Air, and MacBook (Late 2009). If this does not work, you could go a step further and reset your Nonvolatile Random- Access Memory (NVRAM) and/or your Parameter Ram (PRAM). The trackpad and keyboard simply did not work.Īfter a quick internet search I came across a support page on Apple’s website that seemed to describe the problem. You probably just need to reset your System Management Controller (SMC), which controls things like how your computer sleeps/wakes and responds to opening the lid from sleep, etc. When I opened the lid, I could not move the mouse or type my password to log in.

The other day my work MacBook Pro (a mid-2012 15 inch MacBook Pro running OS X 10.7 Lion) started having problems waking from sleep.

How to wake up mac pro when screen is frozen