https://bugzilla.kernel.org/show_bug.cgi?id=16218

           Summary: acer timeline x 4820 battery always claims to be at 0%
                    charge / unknown fill state
           Product: ACPI
           Version: 2.5
    Kernel Version: 2.6.32-23-generic #37-Ubuntu SMP Fri Jun 11 08:03:28
                    UTC 2010 x86_64 GNU/Linux
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Power-Battery
        AssignedTo: [email protected]
        ReportedBy: [email protected]
        Regression: No


Created an attachment (id=26779)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=26779)
acpidump output

The battery always shows as being at 0% charged

# acpi -V
Battery 0: Unknown, 0%, rate information unavailable
Battery 0: design capacity 4400 mAh, last full capacity 4400 mAh = 100%
Adapter 0: on-line
Thermal 0: ok, 40.0 degrees C
Thermal 0: trip point 0 switches to mode critical at temperature 105.0 degrees
C
Thermal 0: trip point 1 switches to mode passive at temperature 98.0 degrees C
Cooling 0: LCD 0 of 9
Cooling 1: LCD 0 of 9
Cooling 2: Processor 0 of 10
Cooling 3: Processor 0 of 10
Cooling 4: Processor 0 of 10
Cooling 5: Processor 0 of 10

# grep . /proc/acpi/battery/*/*
/proc/acpi/battery/BAT1/alarm:alarm:                   300 mAh
/proc/acpi/battery/BAT1/info:present:                 yes
/proc/acpi/battery/BAT1/info:design capacity:         4400 mAh
/proc/acpi/battery/BAT1/info:last full capacity:      4400 mAh
/proc/acpi/battery/BAT1/info:battery technology:      rechargeable
/proc/acpi/battery/BAT1/info:design voltage:          11100 mV
/proc/acpi/battery/BAT1/info:design capacity warning: 300 mAh
/proc/acpi/battery/BAT1/info:design capacity low:     132 mAh
/proc/acpi/battery/BAT1/info:capacity granularity 1:  32 mAh
/proc/acpi/battery/BAT1/info:capacity granularity 2:  32 mAh
/proc/acpi/battery/BAT1/info:model number:            BAT1      
/proc/acpi/battery/BAT1/info:serial number:           11        
/proc/acpi/battery/BAT1/info:battery type:            11        
/proc/acpi/battery/BAT1/info:OEM info:                11        
/proc/acpi/battery/BAT1/state:present:                 yes
/proc/acpi/battery/BAT1/state:capacity state:          ok
/proc/acpi/battery/BAT1/state:charging state:          charged
/proc/acpi/battery/BAT1/state:present rate:            unknown
/proc/acpi/battery/BAT1/state:remaining capacity:      unknown
/proc/acpi/battery/BAT1/state:present voltage:         10000 mV

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