Battery Level Reported Incorrectly

Hi.

I'm using ACPI 20050125 on a Dell Inspiron 300m (BIOS A07) with a 2.6.10 kernel, and a patched DSDT (http://acpi.sourceforge.net/dsdt/view.php?
id=218). The battery's charge is being reported incorrectly--I at first thought my battery had gone bad until I accessed the battery level page in the BIOS setup, which reported the correct information. The battery is reported as completely dead (e.g. "remaining capacity"
in /proc/acpi/battery/BAT1/state is 0 mAh) if the AC adapter is plugged in and 257 mAh as soon as I unplug the adapter. This is incorrect--the BIOS setup utility reports 100% charge. ACPI status reporting tools (like the GNOME battery status applet and the "acpi" command) reflect this in their percentanges. The battery's "info" entry:

present: yes
design capacity: 1799 mAh
last full capacity: 1799 mAh
battery technology: rechargeable
design voltage: 14649 mV
design capacity warning:180 mAh
design capacity low: 54 mAh
capacity granularity 1: 1 mAh
capacity granularity 2: 1 mAh
model number:
serial number:
battery type: LION
OEM info: DELL Computer Corporation

Windows was on this laptop for a few months before I installed Linux, could that have anything to do with it? I'm afraid I don't know enough about how ACPI works to know if that's a factor or not. As far as I know, this is a new problem because most of the ACPI quirks had gone with the previous ACPI release I had used (not sure exactly of the
version: probably 20041202).

Thanks for any help,
Andrew

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