Since upgrading to Mountain Lion, the display sleep function appears not to work, and the screen saver is flaky. I can leave my machine for a couple of hours and when I come back the screen is as I ...
I have my iMac set to set the display to sleep after 15 minutes. I notice at night that, even when no one is touching the computer, the display will come on for a while and then to go back to sleep ...
I have my Macbook pro 17 (early 2011, OSX 10.6.8) set to turn off the display at 30 minutes on AC, and 10 minutes on battery. I've noticed recently that if the battery is charging (the little battery ...