Computer does not wake from sleep mode
iMac, Mac OS X (10.6.8)
What kind of iMac? This is posted in the PPC area and you're running OS X 10.6.8 which is Intel only.
G5 iMac: How to Reset the SMU
Intel Mac: How to Reset the SMC
In the energy saver prefrences (found in system prefrences) is the display set to sleep before the computer ?
The ONLY THING which solved my problem - MacBook Air 2010 not turning on from sleep - was killing the hibernatemode. I tried everything, all the tips we can find here or elsewhere. Nothing worked: reseting SMC, PRAM, selecting startup disk, reformatting, reinstaling i.OS, everything.
But, THIS TRICK HAS WORKED:
After that, my computer always start when I open the lid. Perfectly.
Computer does not wake from sleep
