I have exactly the same issue with a Samsung NP530U3C-A01UK Ultrabook running Ubuntu 12.04 dual booting with Windows.
In addition I have noticed the following (possibly related) behaviour: 1) Occasionally Wireless networking cannot see any wireless networks when booting eitherinto Windows or Ubuntu. 2) Laptop no longer goes into suspend upon closing the lid - both Windows and Ubuntu exhibit this even though both are configured to suspend on lid closure. All of this worked perfectly in both OSes for the first few days. I am running BIOS version P02AAJ which is what came installed from the factory. I would try updating it if I could find the NP530U3C listed on Samsung's support pages :-( -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/971061 Title: acpi reports battery state incorrectly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/acpi/+bug/971061/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
