BUG wrong values for battery

[Paul Menzel]

Dear Andrwe,


Am Samstag, den 04.04.2009, 15:22 +0200 schrieb Andrwe Lord Weber:

> hal sets wrong values for the battery on my laptop.
> 
> my Configuration:
> - gentoo-sources
> - hal version 0.5.12_rc1 with the USE-Flags "X acpi crypt kernel_linux 
> laptop".
> - "sysfs" is activated in kernel
> 
> These variables are wrong:
> 
> battery.charge_level.percentage
> battery.charge_level.rate
> battery.reporting.rate
> 
> It seems to me the percentage is calculated by the following formula on 
> my system:
> 
> battery.charge_level.percentage = battery.charge_level.current / 
> battery.charge_level.design * 100
> 
> This is the reason why I get 65 % as maximum percentage.
> 
> The *.rate variables have a maximum value of 2500 if I compile 
> something. This cause a remaining time >20 hours.

As far as I know HAL just reports the values from the Linux kernel(?)
and it is a well known bug there. Some batteries report the absolute
current and others a percentage and there is now way to decide which
does what. You can find more information in the thread of [1].


Thanks,

Paul


[1] http://www.bughost.org/pipermail/power/2008-November/001502.html
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 197 bytes
Desc: Dies ist ein digital signierter Nachrichtenteil
Url : http://lists.freedesktop.org/archives/hal/attachments/20090405/81d5276f/attachment.pgp