I'm having the same problem here with my Acer Travelmate 4001WLMi. the command "acpi" doesn't have any output at all, so for some reason the battery is not recognised.
In the attachment you can see the Gnome Power Manger icon that is shown, with "Computer is running on AC power" tooltip. Normally a different icon is shown. ** Attachment added: "image of power manager icon" http://launchpadlibrarian.net/7909929/acpower.jpg -- 2.6.20-16 kernel breaks acpi battery https://bugs.launchpad.net/bugs/117504 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs