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Date: Mon, 18 Apr 2005 10:09:19 -0700
From: Nate Lawson <nate@root.org>
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To: Guy Brand <gb@isis.u-strasbg.fr>
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cc: freebsd-acpi@freebsd.org
Subject: Re: hw.acpi.battery.life alway at 100
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Guy Brand wrote:
>   I rebuild last night from
>   
>     FreeBSD 5.4-PRERELEASE #3: Thu Mar 17 09:54:55 CET 2005
> 
>   to
>   
>     FreeBSD 5.4-STABLE #4: Sun Apr 17 01:23:49 CEST 2005
> 
>   and since hw.acpi.battery.life doesn't change its value:
> 
>   # sysctl hw.acpi.battery
>   hw.acpi.battery.life: 100
>   hw.acpi.battery.time: 123
>   hw.acpi.battery.state: 1
>   hw.acpi.battery.units: 1
>   hw.acpi.battery.info_expire: 5
> 
>   # sysctl hw.acpi.battery
>   hw.acpi.battery.life: 100
>   hw.acpi.battery.time: 94
>   hw.acpi.battery.state: 1
>   hw.acpi.battery.units: 1
>   hw.acpi.battery.info_expire: 5
> 
>   # sysctl hw.acpi.battery
>   hw.acpi.battery.life: 100
>   hw.acpi.battery.time: -1
>   hw.acpi.battery.state: 2
>   hw.acpi.battery.units: 1
>   hw.acpi.battery.info_expire: 5
> 
>   While is was working with 5.4-PRERELEASE.
>   gb

You'll have to do more investigating.  There were no MFCs that I can see 
to acpi between those two dates.  First, compare the output of dmesg 
between the working and non-working kernels and see if anything has changed.

-- 
Nate