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

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Message-ID: <20130323202155.GC18732@amd.pavel.ucw.cz>
Date:	Sat, 23 Mar 2013 21:21:56 +0100
From:	Pavel Machek <pavel@....cz>
To:	Bjørn Mork <bjorn@...k.no>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	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

On Sat 2013-03-23 14:00:23, Bjørn Mork wrote:
> "Rafael J. Wysocki" <rjw@...k.pl> writes:
> > On Saturday, March 23, 2013 12:40:12 PM Pavel Machek wrote:
> >> 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?
> 
> Well, if this works, then maybe the Kconfig help text should be updated:
> 
> config ACPI_PROCFS_POWER
>         bool "Deprecated power /proc/acpi directories"
>         depends on PROC_FS
>         help
>           For backwards compatibility, this option allows
>           deprecated power /proc/acpi/ directories to exist, even when
>           they have been replaced by functions in /sys.
>           The deprecated directories (and their replacements) include:
>           /proc/acpi/battery/* (/sys/class/power_supply/*)
>           /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
>           This option has no effect on /proc/acpi/ directories
>           and functions, which do not yet exist in /sys
>           This option, together with the proc directories, will be
>           deleted in 2.6.39.
> 
> 
> Time to call the bluff now :)

This should probably be "default y", BTW.

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:~$ 


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