2008 Macbook Pro won't wake up - can't force reboot
I have searched the interwebs high and low on this one for a long time and haven't found a solution, I post now in desperation as I need my mac urgently.
Every once in a while my mac will not wake from sleep, the problem has persisted now for over a year and even a trip to the genius bar didn't help.
I've read many a post on macs not waking up, but in all of them a force restart is possible. Not here, in my case the mac will simply not wake up no matter what, until hours or sometimes days later it simply wakes up again like nothing happened. Last time it occurred I took it to the genius bar (a fair hike for me) and sure enough, it woke up first time. They ran all kinds of tests and nothing was wrong.
I've tried all the zapping of prams and resetting of power systems, I've tried every key combination I can think of, whilst some seem to do something - make the light flash or turn off, get the fans chugging, make little 'computer' noises etc, it just never wakes up. It never shows up on the network, it never makes the startup chime or any other system noises, it really is in a state of hibernation.
If I close the lid, the light on the front glows bright, if I open the lid it gets dull. If I force shut down it goes off completely. But hitting the power button brings it back on (to dull). Holding the power button down to force reboot causes the light to flash rapidly but then nothing happens.
Removing the battery, letting the battery drain, or unplugging the magsafe makes no difference.
All I can ever do is wait, and wait, and so far each time it has just eventually come back to life when it was good and ready, usually around two days later.
When it does, the screen I left is usually still there, just how I left it, only its black and white and a little progress bar chugs along for a few seconds and then its all back to normal, even apps I left open are still there running, like it was really just asleep the whole time.
If anyone has any ideas at all I'd be most appreciative.
MacBook Pro, Mac OS X (10.6.7)