linux-kernel - Re: 2.6.21-rc7-mm2 -- gnome-power-manager always shows the power as coming from AC

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Message-Id: <20070426142824.9da91feb.akpm@linux-foundation.org>
Date:	Thu, 26 Apr 2007 14:28:24 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Miles Lane" <miles.lane@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, linux-acpi@...r.kernel.org,
	Vladimir Lebedev <vladimir.p.lebedev@...el.com>,
	Len Brown <lenb@...nel.org>
Subject: Re: 2.6.21-rc7-mm2 -- gnome-power-manager always shows the power as
 coming from AC

On Thu, 26 Apr 2007 12:13:00 -0700 "Miles Lane" <miles.lane@...il.com> wrote:

> One possible issue is that /proc/acpi/power_resource/ is an empty directory.
> Otherwise, the ACPI information seems to be fine:
> 
> # cat /proc/acpi/ac_adapter/ACAD/state
> state:                   on-line
> # cat /proc/acpi/ac_adapter/ACAD/state
> state:                   off-line
> 
> # cat /proc/acpi/battery/BAT0/state
> present:                 yes
> capacity state:          ok
> charging state:          discharging
> present rate:            0 mA
> remaining capacity:      7072 mAh
> present voltage:         12487 mV
> 
> When I unplug the power cable, /proc/acpi/battery/BAT0/state (present
> rate) shows that current flowing from the battery.
> 
> # cat /proc/acpi/button/lid/LID0/state
> state:      closed
> # cat /proc/acpi/button/lid/LID0/state
> state:      open

hm, I'm looking suspiciously at "ACPI: Cache battery status instead of
re-evaluating AML".

What sort of machine is this?
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