Mid 2009 Macbook Pro 15" not sleeping?

[brettgo1]

Hey,

I just bought a Mid 2009 Macbook Pro 15" and installed a Corsair P256 into it. However, for some reason, it is not going to sleep automatically when it is unplugged; instead it will go into a hibernation mode when the battery runs all the way down.

I haven't changed the default energy saver settings. I was wondering if anybody with the same configuration experienced the same issues as me? What do you think I should do to fix it?

Cheers

Brett

 

[vanc]

Check your energy saver settings and make sure on battery power, the Computer Sleep slider bar set to sleep after some time (default is around 15 minutes).

 

[brettgo1]

Yes,

It is set to the default (10 mins) for battery power saving.

Also, I'd like to note that it will sleep if I close the lid or manually do it from the menu, it's just not doing it automatically.

Any ideas?

 

[kentcoleslaw]

I didn't experience it with the same config, but I did with my C2D iMac (the white plastic one.) I did a 'ps ax' at the terminal and tried killing processes from third-party software until I found the culprit. Turned out that a couple of helper apps from Parallels were hitting the hard drive every so often, which was stopping the machine from sleeping.