linux-kernel - Re: 3.9-rc3+: reports battery as 0 mWh capacity on thinkpad x60

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Date:	Sun, 24 Mar 2013 10:27:33 +0100
From:	Pavel Machek <pavel@....cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Bjørn Mork <bjorn@...k.no>,
	kernel list <linux-kernel@...r.kernel.org>, lenb@...nel.org,
	linux-acpi@...r.kernel.org
Subject: Re: 3.9-rc3+: reports battery as 0 mWh capacity on thinkpad x60

Hi!

> > > >> pavel@amd:~$ cat /proc/acpi/battery/BAT0/info 
> > > >> present:                 yes
> > > >> design capacity:         0 mWh
> > > >> last full capacity:      0 mWh
> > > >> battery technology:      rechargeable
> > > >> design voltage:          14400 mV
> > > >> 
> > > >> This worked before... at least it works in 2.6 kernel used by debian.
> > > >
> > > > This works for me in 3.9-rc3.  May I see your .config?
...
> > But problem is not in /proc, /sys has zeros, too.
> > 
> > pavel@amd:~$ cat /sys/class/power_supply/BAT0/energy_full
> > 0
> > pavel@amd:~$ cat /sys/class/power_supply/BAT0/energy_full_design 
> > 0
> > pavel@amd:~$ cat /sys/class/power_supply/BAT0/model_name 
> > 93P5030
> > pavel@amd:~$
> 
> Can you narrow the time frame when it stopped working a bit?

Well, 2.6.32 from debian works ok, and self-compiled 3.1+ kernel also
seems to work ok.

I'm not sure if 3.7+ kernels worked, actually... I'd have to do some
compiling to check.

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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