Re: incorrect battery design capacity

[Jachym Cepicky <jachym.cepicky@gmail.com>]

Hi,
yakui_zhao píše v Po 23. 02. 2009 v 16:58 +0800:
> On Mon, 2009-02-23 at 16:18 +0800, Jachym Cepicky wrote:
> > Hi, 
> > if I'm in wrong mailing list, my apologizes, plese point me to the right
> > one.
> >  
> > It is truth, that my laptop is about 3 years old, and so, I can not
> > expect  miracles from my battery, however, I would call this an bug:
> > 
> > I have HP Compaq nx6125 and on the battery it is written, that it is
> > 10.8V - 4.8 Ahr, which I understand, that capacity of my battery is 4800
> > mAh. 
> > 
> > However,  cat /proc/acpi/battery/C179/info 
> > present:                 yes
> > design capacity:         638 mAh
> It seems that the design capacity is not very correct.
> Will you please try the latest kernel and see whether the battery design
> capacity can be reported correctly?
> Of course please also attach the output of acpidump.
> Thanks.

Sorry, I managed to compile (install) only current 2.6.28 version from
Ubuntu Jaunty (2.6.28.6, I guess) [1]. Compilation of linux-2.6.28.7
from kernel.org went fine, (fakeroot make-kpkg --initrd
--append-to-version=-custom kernel_image kernel_headers), but the
post-installation script did not work.

So, if it helps, I have 
Linux kocour 2.6.28-8-generic #24 SMP Mon Feb 23 15:29:17 CET 2009 i686
GNU/Linux, Ubuntu 8.10

cat /proc/acpi/battery/C179/info
present:                 yes
design capacity:         638 mAh
last full capacity:      638 mAh
battery technology:      rechargeable
design voltage:          11100 mV
design capacity warning: 32 mAh
design capacity low:     7 mAh
capacity granularity 1:  100 mAh
capacity granularity 2:  100 mAh
model number:            Primary
serial number:           03740 2006/01/12
battery type:            LIon
OEM info:                Hewlett-Packard

the output from acpidum can be found at [2], with --binary at [3]

I hope, it helps, thanks a lot

Jachym

[1] http://packages.ubuntu.com/jaunty/linux-image-2.6.28-8-generic
[2] http://les-ejk.cz/tmp/acpidump.txt
[3] http://les-ejk.cz/tmp/acpidump.bin
-- 
Jachym Cepicky
e-mail: jachym.cepicky gmail com
URL: http://les-ejk.cz
GPG: http://les-ejk.cz/pgp/JachymCepicky.pgp

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