[Pkg-acpi-devel] Bug#699577: Battery: Remaining capacity shows unknown and 00:00:00 time left

[Andreas Stempfhuber]

Package: acpitool
Version: 0.5.1-3
Severity: important

Hi,

The remaining capacity value is allays displayed as unknown but it should
contain the value of /sys/class/power_supply/BATx/charge_now. Also the time 
left is displayed as 00:00:00 when discharging.

This happens with all notebooks and batteries I could test so far and looks
like a general bug independent of the driver.

Dell Latitude D410:

$ acpi
Battery 0: Discharging, 41%, 00:59:51 remaining
$ acpitool -B
  Battery #1     : present
    Remaining capacity : unknown, 41.21%, 00:00:00
    Design capacity    : 4800 mA
    Last full capacity : 4004 mA, 83.42% of design capacity
    Capacity loss      : 16.58%
    Present rate       : 1654 mA
    Charging state     : Discharging
    Battery type       : Li-ion
    Model number       : DELL
    Serial number      : 400
$ cat /sys/class/power_supply/BAT0/charge_now
1634000


BenQ Joybook 5000:

$ acpi
Battery 0: Discharging, 80%, 02:56:24 remaining
$ acpitool -B
  Battery #1     : present
    Remaining capacity : unknown, 80.98%, 00:00:00
    Design capacity    : 4300 mA
    Last full capacity : 3086 mA, 71.77% of design capacity
    Capacity loss      : 28.23%
    Present rate       : 850 mA
    Charging state     : Discharging
    Battery type       : Li-ion
    Model number       : LIP603
    Serial number      : 0033
$ cat /sys/class/power_supply/BAT0/charge_now
2499000


Dell Latitude D620 with battery in slot 0:

$ acpi
Battery 0: Discharging, 98%, 02:15:56 remaining
$ acpitool -B
  Battery #1     : present
    Remaining capacity : unknown, 98.43%, 00:00:00
    Design capacity    : 5100 mA
    Last full capacity : 3830 mA, 75.10% of design capacity
    Capacity loss      : 24.90%
    Present rate       : 1664 mA
    Charging state     : Discharging
    Battery type       : Li-ion
    Model number       : DELL
    Serial number      : 1135
$ cat /sys/class/power_supply/BAT0/charge_now
3770000


Dell Latitude D620 with battery in slot 1:

$ acpi
Battery 0: Discharging, 40%, 00:44:53 remaining
$ acpitool -B
  Battery #1     : present
    Remaining capacity : unknown, 40.25%, 00:00:00
    Design capacity    : 4200 mA
    Last full capacity : 3595 mA, 85.60% of design capacity
    Capacity loss      : 14.40%
    Present rate       : 1934 mA
    Charging state     : Discharging
    Battery type       : Li-poly
    Model number       : DELL
    Serial number      : 522
$ cat /sys/class/power_supply/BAT1/charge_now
1447000


Compal CL51:

$ acpi
Battery 0: Discharging, 83%, discharging at zero rate - will never fully
discharge.
$ acpitool -B
  Battery #1     : present
    Remaining capacity : unknown, 83.00%
    Design capacity    : 4000 mA
    Last full capacity : 4000 mA
    Present rate       : 0 mA
    Charging state     : Discharging
    Battery type       : Li-ion
    Model number       : PA3206U
    Serial number      : 3658Q
$ cat /sys/class/power_supply/BAT1/charge_now
3280000

Thanks,

Andi



-- System Information:
Debian Release: 7.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 3.2.0-4-686-pae (SMP w/1 CPU core)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages acpitool depends on:
ii  libc6       2.13-37
ii  libgcc1     1:4.7.2-5
ii  libstdc++6  4.7.2-5

Versions of packages acpitool recommends:
ii  acpid  1:2.0.16-1

acpitool suggests no packages.

-- no debconf information