For the lurkers or anyone else having this problem with a 2nd gen macbook, do this: http://support.apple.com/kb/HT3964?viewlocale=en_US (Reset the SMC on the laptop). This will fix the battery issue at the hardware level allowing gnomes power management to work correctly.
Sorry about digging up an old bug - turns out this isn't a bug with gnome (at least so it seems)
For the lurkers or anyone else having this problem with a 2nd gen macbook, do this: http:// support. apple.com/ kb/HT3964? viewlocale= en_US (Reset the SMC on the laptop). This will fix the battery issue at the hardware level allowing gnomes power management to work correctly.
Sorry about digging up an old bug - turns out this isn't a bug with gnome (at least so it seems)