I have a similar issue (on an MSI S271 laptop) with hardy (both amd64
and i386).
$ cat /proc/acpi/battery/BAT1/info
present: yes
design capacity: 17 mAh
last full capacity: 12302 mAh
battery technology: rechargeable
design voltage: 22073 mV
design capacity warning: 0 mAh
design capacity low: 0 mAh
capacity granularity 1: 1 mAh
capacity granularity 2: 1 mAh
model number: MS-1058
serial number:
battery type: LION
OEM info: MSI Corp.
This is with the power cable plugged in and the battery fully charged:
$ acpi -ba
Battery 1: charging, 0%, 05:20:00 until charged
AC Adapter 1: on-line
$ cat /proc/acpi/battery/BAT1/state
present: yes
capacity state: ok
charging state: charging
present rate: 2304 mA
remaining capacity: 14 mAh
present voltage: 13377 mV
With the mains unplugged :
$acpi -ba
Battery 1: charging, 100%, until charged
AC Adapter 1: off-line
$ cat /proc/acpi/battery/BAT1/state
present: yes
capacity state: ok
charging state: charging
present rate: 2555 mA
remaining capacity: 25358 mAh
present voltage: 1343 mV
In both cases, I sometimes get instead of the proper values:
$ cat /proc/acpi/battery/BAT1/state
present: yes
capacity state: ok
charging state: charged
present rate: unknown
remaining capacity: unknown
present voltage: 10000 mV
--
Wrong battery information
https://bugs.launchpad.net/bugs/218094
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