Re: 3.9-rc3+: reports battery as 0 mWh capacity on thinkpad x60
From: Rafael J. Wysocki
Date: Sat Mar 23 2013 - 19:37:51 EST
On Saturday, March 23, 2013 09:21:56 PM Pavel Machek wrote:
> On Sat 2013-03-23 14:00:23, BjÃrn Mork wrote:
> > "Rafael J. Wysocki" <rjw@xxxxxxx> 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 they have been replaced by functions in /sys.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
> pavel@amd:~$ cat /sys/class/power_supply/BAT0/energy_full_design
> pavel@amd:~$ cat /sys/class/power_supply/BAT0/model_name
Can you narrow the time frame when it stopped working a bit?
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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