I've been having a problem with Mint 12 64 bit (Main Edition) with Gnome 3. When I unplug my fairly new laptop from the power source, I get a warning that my "Battery is Critically Low". A quick check of the battery indicator shows that my battery is 98% FULL and that I have only a few seconds remaining. Within a short time the laptop hybernates no matter what I try to do. After exiting hybernation, the battery indicator shows that my laptop battery is 98% full and I have 2 1/2 hours remaining (which is actually what it should be).
I'm not sure what's going on but this is getting VERY frustrating! Can anyone offer some assistance with this please? I previously had Ubuntu 10.04 LTS 64 bit installed on this laptop and this never happened. My battery is fine and after exiting hybernation, it does keep running for about 2 1/2 hours until the battery is drained.
I found a post regarding a similar problem in the Mint forum under: Other Edition Support > LMDE (Linux Mint Debian) > Newbie Questions... however since I'm not using that version, felt that posting here would be more appropriate.
Any help would be greatly appreciated. Thank you!