in Ubuntu 10.04 gnome had a bug that was worked around but cannot be done in Unity in 11.10
IN GNOME:
Whenever I unplug my laptop from AC power, I get a window popping up that says "Laptop battery critically low. Computer will hibernate very soon unless it is plugged in." And a little notification pops up that says that the laptop has 5 minutes until the power drains.
But when I click on the battery icon, it says that I have 4 hours of battery time remaining. My battery is a six cell battery with 97.1% charge capacity. I have no idea why it's saying that it's almost out of power. That doesn't come up if I turn on my laptop after I unplug it.
Does anyone know why it's coming up or how I can disable it?
WORKAROUND:
If you open up a terminal and run gconf-editor, go to apps, navigate to gnome-power-manager, click on general, and then uncheck "use_time_for_policy", it will fix the warning messages. Some people (myself included) were also having trouble with it automatically hibernating/suspending when unplugged, and this fixes that issue also.
IN UNITY THERE IS NO GNOME-POWER-MANAGEMENT SO HOW DO WE STOP THIS?
Status changed to 'Confirmed' because the bug affects multiple users.