System: Laptop Acer Travelmate 4100
Linux: Ubuntu Hardy Heron, last updates

Problem: Gnome-Power-Manager does not update the battery reading of the laptop. 
Expected: g-p-m shows correct power consumption, remaining power.

What works: indication of power cord attached / removed.
But there is no continous info from hal about the battery power status.

Details:

When I check the battery manually (acpi -b), lshal -m produces

10:56:42.004: computer_power_supply_battery_BAT0 property battery.
remaining_time = 700 (0x2bc) (new)
10:56:42.009: computer_power_supply_battery_BAT0 property battery.
charge_level.percentage = 21 (0x15)
10:56:42.013: computer_power_supply_battery_BAT0 property battery.
charge_level.rate = 21223 (0x52e7)
10:56:42.016: computer_power_supply_battery_BAT0 property battery.
charge_level.current = 13556 (0x34f4)
10:56:42.020: computer_power_supply_battery_BAT0 property battery.
reporting.current = 916 (0x394)
10:56:42.022: computer_power_supply_battery_BAT0 property battery.
rechargeable.is_charging = true
10:56:42.023: computer_power_supply_battery_BAT0 property battery.
reporting.rate = 1434 (0x59a)
10:56:42.025: computer_power_supply_battery_BAT0 property battery.
voltage.current = 16706 (0x4142)

and gpm updates the battery reading.

On Feisty (gpm working) I observed, that lshal -m produces every 
minute this output:

acpi_BAT0 property battery.charge_level.percentage = 93 (0x5d)
acpi_BAT0 property battery.remaining_time = 3781 (0xec5)
acpi_BAT0 property battery.charge_level.current = 16605 (0x40dd)
acpi_BAT0 property battery.voltage.current = 15882 (0x3e0a)
acpi_BAT0 property battery.reporting.current = 1122 (0x462)

which is missing in 8.04.

I checked the installation CDs (the one I used and also last update from Ubuntu): both show this issue. So the bug is not caused by a mis-configuration I did.

Since I am trying to run this on a laptop, this issue is blocking to me.

Dietmar