Macbook 13inch mid 2012 Running on Yosemite 10.10.05 Despite what I do to my power settings my macbook will shut completely down when plugged in after about an hour. But will stay in sleep mode for days/ until it runs out of power when not plugged in. Seem like something is backwards here????? Probably unrelated but when I boot it backup the screen will be frozen long enough for the screen to go black and stay black (total of about 4 mins) then it will come to (with some button fidgeting) and let me enter my password. Is there anyway to edit the power settings more then whats in the system preferences? this has all been happening for a couple of updates so it not that.