I see this behaviour on a Dell Inspiron 1150 running Lucid. The battery drains completely to the point of immediate power off.
Gnome power monitor in tray still reports AC online, and "Laptop battery is charged" The problem I believe is causing this appears under the report for "Power Statistics". If I switch to "AC Adapter", the figure for "Refreshed" can stretch to at least 6000 seconds. I have seen the battery suddenly start to report correctly and see this counter reset to a figure recording a recent check of power state. The state information under /proc/acpi is always correct . (Output of acpi -V) Battery 0: Discharging, 60%, 02:00:28 remaining Battery 0: design capacity 6450 mAh, last full capacity 5451 mAh = 84% Adapter 0: off-line Thermal 0: ok, 53.5 degrees C Thermal 0: trip point 0 switches to mode critical at temperature 78.0 degrees C Cooling 0: Processor 0 of 10 -- Battery monitor on tray says "Laptop battery is fully charged" all the time https://bugs.launchpad.net/bugs/464535 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs