ACPI battery information not correctly updating on Acer Aspire ZG5

[Adam Portier]

My battery status indicator is reporting incorrect times for both charge and discharge. The time will fluxuate greatly across values much to large to be believed (5 hours to charge, 6 hours to discharge). The battery will also not indicate a correct charge percentage. Upon reboot, the information appears correct for a few minutes, then starts drifting to incorrect values. Attached are the hal-device outputs from similar bug report already on Launchpad.

Charging
acpitool -b
  Battery #1 : charging, 38.05%, 04:51:32

Discharging
acpitool -b
  Battery #1 : charged, 38.17%, 02:14:36

hal-find-by-capability --capability "ac_adapter" | xargs -n 1 hal-device
udi = '/org/freedesktop/Hal/devices/computer_power_supply_ac_adapter_ACAD'
  linux.hotplug_type = 2 (0x2) (int)
  linux.subsystem = 'power_supply' (string)
  ac_adapter.present = false (bool)
  info.subsystem = 'power_supply' (string)
  info.product = 'Generic AC Adapter Device' (string)
  linux.sysfs_path = '/sys/devices/LNXSYSTM:00/device:00/ACPI0003:00/power_supply/ACAD' (string)
  info.parent = '/org/freedesktop/Hal/devices/computer' (string)
  info.udi = '/org/freedesktop/Hal/devices/computer_power_supply_ac_adapter_ACAD' (string)
  info.category = 'ac_adapter' (string)
  info.capabilities = { 'ac_adapter' } (string list)

hal-find-by-capability --capability "battery" | xargs -n 1 hal-device
udi = '/org/freedesktop/Hal/devices/computer_power_supply_battery_BAT1'
  linux.hotplug_type = 2 (0x2) (int)
  linux.subsystem = 'power_supply' (string)
  battery.type = 'primary' (string)
  battery.reporting.technology = 'Li-ion' (string)
  battery.technology = 'lithium-ion' (string)
  battery.model = 'UM08B74' (string)
  battery.vendor = 'SIMPLO' (string)
  battery.voltage.design = 11100 (0x2b5c) (int)
  battery.voltage.unit = 'mV' (string)
  info.product = 'UM08B74' (string)
  battery.reporting.design = 5200 (0x1450) (int)
  battery.serial = '013B' (string)
  battery.present = true (bool)
  battery.reporting.unit = 'mAh' (string)
  battery.reporting.rate = 658 (0x292) (int)
  battery.is_rechargeable = true (bool)
  battery.rechargeable.is_charging = true (bool)
  battery.rechargeable.is_discharging = false (bool)
  battery.reporting.current = 1847 (0x737) (int)
  battery.reporting.last_full = 4949 (0x1355) (int)
  battery.charge_level.current = 20501 (0x5015) (int)
  battery.charge_level.last_full = 54933 (0xd695) (int)
  battery.charge_level.design = 57720 (0xe178) (int)
  battery.charge_level.rate = 7303 (0x1c87) (int)
  battery.charge_level.percentage = 37 (0x25) (int)
  battery.remaining_time = 16973 (0x424d) (int)
  info.subsystem = 'power_supply' (string)
  battery.voltage.current = 11472 (0x2cd0) (int)
  info.udi = '/org/freedesktop/Hal/devices/computer_power_supply_battery_BAT1' (string)
  linux.sysfs_path = '/sys/devices/LNXSYSTM:00/device:00/PNP0C0A:00/power_supply/BAT1' (string)
  info.parent = '/org/freedesktop/Hal/devices/computer' (string)
  info.category = 'battery' (string)
  info.capabilities = { 'battery' } (string list)

[Steve Langasek (vorlon)]

Acpi-support is not related to reports of charge/discharge time. Reassigning to upower.

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
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