IMAC question
My iMac desktop screen keeps going black as if in sleep mode ..i can still hear the disk drives running but i can't bring the screen back...i have to power down and then switch back on..
iMac, OS X Mavericks (10.9.5)
This is something I've occasionally experienced and think it is a bug. Setting System Preferences>Energy Saver>Computer Sleep to 'never' solves it for me.