I had the same problem. It is due to a hardware bug. I posted the solution here : https://help.ubuntu.com/community/MacBookPro#head- 5064fd602c07a77f22bba3b2a5e31335acb16ccd
-- [GUTSY] ACPI: battery state reporting errors since 2.6.22-9 https://bugs.launchpad.net/bugs/129388 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
