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[Bug 1133328] Re: Battery design capacity is zero

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Fabián Núñez <1133328@xxxxxxxxxxxxxxxxxx>
Date: Tue, 27 Aug 2013 18:48:47 -0000
Reply-to: Bug 1133328 <1133328@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Hi,

This also affects me. I have an ASUS laptop (UX32VD) with two HDD, one
with Windows 7 (SATA) and another with Raring (SSD). W7 seems to be
fine, but Ubuntu won't read the design battery capacity. My charger has
a light which goes green when the battery is fully charged. It turns
green on 99% on Windows, but Ubuntu is still showing that 2:36 hours are
left until a full charge.

If I restart and boot on Windows, everything is fine. I can't send any
information using apport since I'm not the bug owner, or it was closes
or duplicated.

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https://bugs.launchpad.net/bugs/1133328

Title:
  Battery design capacity is zero

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Seen on Ubuntu 12.10.

  I've a Lenovo G780 unit for which the battery design capacity is
  reported as zero. This is a brand new unit.

  In /sys/class/power_supply/BAT1 I can find the following information:

      POWER_SUPPLY_NAME=BAT1
      POWER_SUPPLY_STATUS=Charging
      POWER_SUPPLY_PRESENT=1
      POWER_SUPPLY_TECHNOLOGY=Unknown
      POWER_SUPPLY_CYCLE_COUNT=1491
      POWER_SUPPLY_VOLTAGE_MIN_DESIGN=1000
      POWER_SUPPLY_VOLTAGE_NOW=11820000
      POWER_SUPPLY_POWER_NOW=635500000
      POWER_SUPPLY_ENERGY_FULL_DESIGN=0
      POWER_SUPPLY_ENERGY_FULL=47520000
      POWER_SUPPLY_ENERGY_NOW=36350000
      POWER_SUPPLY_MODEL_NAME=
      POWER_SUPPLY_MANUFACTURER=Li-Ion
      POWER_SUPPLY_SERIAL_NUMBER=PABAS0241231

  At first, I thought that this was a battery issue, but when I use
  Windows based battery tools, I get good values for the 3 capacity
  values:

      design capacity
      last full charged capacity
      current capacity

  These 3 values are different in windows, so it's not that one of the
  capacity values is reused for one of the other values.

  This is a Ubuntu defect.

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