linux-kernel - Re: kpowersave stuck at battery charging

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Message-ID: <477B6AA5.5020803@gmail.com>
Date:	Wed, 02 Jan 2008 13:42:45 +0300
From:	Alexey Starikovskiy <aystarik@...il.com>
To:	Andrey Borzenkov <arvidjaar@...l.ru>
CC:	hal@...ts.freedesktop.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: kpowersave stuck at battery charging

Andrey Borzenkov wrote:
> This is did not happen before; I am not sure right now what caused this (i.e. 
> battery aging or some software change) nor whether this is kernel/HAL/kpowersave 
> issue.
>
> kpowersave is stuck at assuming battery is loading and at 94%. Sysfs displays 
> battery state as Full:
>
>   
Frequent battery charging shortens lifetime of the battery, so some (may 
be all now)
notebook manufacturers do not start charging  battery until it discharge 
to some degree (~90%).
It could be your case. Please try to discharge battery to, say, 89% and 
then check if it charges to the
100%.
> - does ACPI battery code misuse POWER_SUPPLY_PROP_ENERGY_FULL?
> - does HAL misuse .../energy_full?
> - does kpowersave misuse battery.charge_level.last_full?
>   

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