I am also having this problem using an hp nx7000 laptop. Below is the output of gnome-power-manager run in verbose non-daemon mode. This output is generated by directly after pulling out power. The initial readings are correct- thereafter the timeleft goes haywire. The acpi command reports the correct value. [notice the jump from 1hr 26min left to 10 minutes left]
[battery_kind_cache_update] gpm-power.c:769 (10:09:36): emitting battery-status-changed : Laptop battery [get_stock_id] gpm-manager.c:359 (10:09:36): Getting stock icon for tray [get_stock_id] gpm-manager.c:389 (10:09:36): Trying CRITICAL: primary, ups, mouse, keyboard [get_stock_id] gpm-manager.c:413 (10:09:36): Trying CHARGING: primary, ups [get_icon_index_from_percent] gpm-manager.c:300 (10:09:36): percent = 89 [get_stock_id_helper] gpm-manager.c:343 (10:09:36): filename = battery-discharging-080 [tray_icon_update] gpm-manager.c:465 (10:09:36): Going to use stock id: battery-discharging-080 [gpm_tray_icon_set_image_from_stock] gpm-tray-icon.c:178 (10:09:36): Setting icon to battery-discharging-080 [gpm_power_get_status_summary] gpm-power.c:979 (10:09:36): tooltip: Computer is running on battery power Laptop battery 1 hour, 26 minutes remaining (89%) [battery_status_changed_primary] gpm-manager.c:1488 (10:09:36): Already notified 1 [battery_kind_cache_debug_print] gpm-power.c:416 (10:09:36): Device : Laptop battery [battery_kind_cache_debug_print] gpm-power.c:418 (10:09:36): number 1 design 37532800 [battery_kind_cache_debug_print] gpm-power.c:420 (10:09:36): present 1 last_full 37532800 [battery_kind_cache_debug_print] gpm-power.c:422 (10:09:36): percent 89 current 33670000 [battery_kind_cache_debug_print] gpm-power.c:424 (10:09:36): charge 0 rate 23458000 [battery_kind_cache_debug_print] gpm-power.c:426 (10:09:36): discharge 1 remaining 5167 [battery_kind_cache_debug_print] gpm-power.c:428 (10:09:36): capacity 0 [watch_device_property_modified] gpm-hal-monitor.c:215 (10:09:36): udi=/org/freedesktop/Hal/devices/acpi_C11F, key=battery.charge_level.rate, added=0, removed=0 [watch_device_property_modified] gpm-hal-monitor.c:230 (10:09:36): emitting battery-property-modified : /org/freedesktop/Hal/devices/acpi_C11F, battery.charge_level.rate [hal_battery_property_modified_cb] gpm-power.c:1245 (10:09:36): Battery Property Modified: /org/freedesktop/Hal/devices/acpi_C11F [battery_kind_cache_update] gpm-power.c:731 (10:09:36): 1 devices of type Laptop battery [battery_kind_cache_update] gpm-power.c:769 (10:09:36): emitting battery-status-changed : Laptop battery [get_stock_id] gpm-manager.c:359 (10:09:36): Getting stock icon for tray [get_stock_id] gpm-manager.c:389 (10:09:36): Trying CRITICAL: primary, ups, mouse, keyboard [get_stock_id] gpm-manager.c:413 (10:09:36): Trying CHARGING: primary, ups [get_icon_index_from_percent] gpm-manager.c:300 (10:09:36): percent = 89 [get_stock_id_helper] gpm-manager.c:343 (10:09:36): filename = battery-discharging-080 [tray_icon_update] gpm-manager.c:465 (10:09:36): Going to use stock id: battery-discharging-080 [gpm_tray_icon_set_image_from_stock] gpm-tray-icon.c:178 (10:09:36): Setting icon to battery-discharging-080 [gpm_power_get_status_summary] gpm-power.c:979 (10:09:36): tooltip: Computer is running on battery power Laptop battery 10 minutes remaining (89%) [gpm_tray_icon_notify] gpm-tray-icon.c:763 (10:09:36): doing notify: Power Very Low [get_widget_position] gpm-tray-icon.c:590 (10:09:36): widget position x=1492, y=23 *** WARNING *** [libnotify_event] gpm-tray-icon.c:634 (10:09:36): libnotify: Power Manager : You have approximately <b>10 minutes</b> of remaining battery life (89%). Plug in your AC Adapter to avoid losing data. [battery_kind_cache_debug_print] gpm-power.c:416 (10:09:36): Device : Laptop battery [battery_kind_cache_debug_print] gpm-power.c:418 (10:09:36): number 1 design 37532800 [battery_kind_cache_debug_print] gpm-power.c:420 (10:09:36): present 1 last_full 37532800 [battery_kind_cache_debug_print] gpm-power.c:422 (10:09:36): percent 89 current 33670000 [battery_kind_cache_debug_print] gpm-power.c:424 (10:09:36): charge 0 rate 209233508 [battery_kind_cache_debug_print] gpm-power.c:426 (10:09:36): discharge 1 remaining 579 [battery_kind_cache_debug_print] gpm-power.c:428 (10:09:36): capacity 0 [watch_device_property_modified] gpm-hal-monitor.c:215 (10:09:36): udi=/org/freedesktop/Hal/devices/acpi_C11F, key=battery.charge_level.current, added=0, removed=0 [watch_device_property_modified] gpm-hal-monitor.c:230 (10:09:36): emitting battery-property-modified : /org/freedesktop/Hal/devices/acpi_C11F, battery.charge_level.current [hal_battery_property_modified_cb] gpm-power.c:1245 (10:09:36): Battery Property Modified: /org/freedesktop/Hal/devices/acpi_C11F -- Critical power warning at 99% https://launchpad.net/bugs/42705 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
