I think I finally got my wife's MBA's wake from sleep problem fixed.

[Grateful11]

After upgrading to ML she would have to hard start her 2010 MBA nearly every time she opened it.
After even doing a Clean Install that was suggested here it made no difference. After some research I
finally tried this:

http://blog.alexmorales.org/energy-saver...nt-page-1/

http://forums.macresource.com/read.php?1...sg-1551047

[Speedy]

Glad you found a workaround! Thanks for posting the follow-up.

Energy Saver prefs is problematic on all my Macs except my G5. Mostly display sleep. I open the pref, change the setting to something other than my preferred time, close the pref and then reopen it, then reset the pref to where it originally was and it works again - for awhile.

[hal]

Energy saver prefs have ALWAYS been a problem. Just last week, my mac pro decided to not shut down the screens after ANY length of time. Had to restart to get it back to right.

Been like this since OS 8 - maybe farther...

[tompatrick]

Grateful11 wrote:
After upgrading to ML she would have to hard start her 2010 MBA nearly every time she opened it.
After even doing a Clean Install that was suggested here it made no difference. After some research I
finally tried this:

http://blog.alexmorales.org/energy-saver...nt-page-1/

http://forums.macresource.com/read.php?1...sg-1551047

Thanks for the share. I was searching for the same problem for one of my friend MBA. I hopeful now to resolve the issue at earliest.

[Chakravartin]

Hmm... What about just deleting the file and letting the OS make a new/good version?