I'm fairly certain that I've experienced this problem since Gutsy. I'm running Jaunty now and still have the problem. Incidentally, this bug should be considered critical. Apparently, draining a Li-on battery completely kills the battery (mine only has 9.8% of it's original capacity).
I've checked out the battery info, and I did find it interesting that battery info specifies low power and warning states based on the mAh remaining on the battery, not on a percentage. I've been trying to read the source code from gnome-power-manager, specifically to see how the % battery is calculated (gpm-warning.c). I'm figuring it's getting the information from /proc/acpi/battery/BAT*/info and state, but I haven't been able to confirm this in the source. I'm thinking that the action should be done on the batteries low power spec (contained in /proc/acpi/battery/BAT*/info), not on the percentage currently calculated by gpm. I have a Toshiba U305-S7448. I attached a file with my battery info. ** Attachment added: "launchpad-bugreport-battery-gnome-power-manager" http://launchpadlibrarian.net/36304115/launchpad-bugreport-battery-gnome-power-manager -- Action on critical battery is not triggered - gnome-power-manager https://bugs.launchpad.net/bugs/481576 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs