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dmlawrence

Member

Registered: 2008-10-01

Posts: 21

Battery monitoring partially breaks after suspend

I'm experiencing a subtle problem with battery monitoring on my laptop.  The problem appears after the computer is first suspended and persists until the computer is turned off and back on.  Note that a reboot does not fix the problem, whereas a shutdown does.

Symptoms

• cat /proc/acpi/battery/BAT0/state prints rate and capacity in mA/mAh before the problem begins, but prints rate and capacity in mW/mWh after the problem occurs.

• ibam works fine before the problem occurs, but prints "No apm data available" after the problem occurs.

• /var/log/errors.log contains the following line, coincident with suspends that cause the problem:

  May 21 13:40:04 localhost kernel: [  171.735681] ACPI: Unable to dock!

Hardware

• Lenovo Thinkpad X220 (datasheet)

• lspci -nn

  00:00.0 Host bridge [0600]: Intel Corporation 2nd Generation Core Processor Family DRAM Controller [8086:0104] (rev 09)
  00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09)
  00:16.0 Communication controller [0780]: Intel Corporation 6 Series Chipset Family MEI Controller #1 [8086:1c3a] (rev 04)
  00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection [8086:1502] (rev 04)
  00:1a.0 USB Controller [0c03]: Intel Corporation 6 Series Chipset Family USB Enhanced Host Controller #2 [8086:1c2d] (rev 04)
  00:1b.0 Audio device [0403]: Intel Corporation 6 Series Chipset Family High Definition Audio Controller [8086:1c20] (rev 04)
  00:1c.0 PCI bridge [0604]: Intel Corporation 6 Series Chipset Family PCI Express Root Port 1 [8086:1c10] (rev b4)
  00:1c.1 PCI bridge [0604]: Intel Corporation 6 Series Chipset Family PCI Express Root Port 2 [8086:1c12] (rev b4)
  00:1c.3 PCI bridge [0604]: Intel Corporation 6 Series Chipset Family PCI Express Root Port 4 [8086:1c16] (rev b4)
  00:1c.4 PCI bridge [0604]: Intel Corporation 6 Series Chipset Family PCI Express Root Port 5 [8086:1c18] (rev b4)
  00:1d.0 USB Controller [0c03]: Intel Corporation 6 Series Chipset Family USB Enhanced Host Controller #1 [8086:1c26] (rev 04)
  00:1f.0 ISA bridge [0601]: Intel Corporation 6 Series Chipset Family LPC Controller [8086:1c4f] (rev 04)
  00:1f.2 SATA controller [0106]: Intel Corporation 6 Series Chipset Family 6 port SATA AHCI Controller [8086:1c03] (rev 04)
  00:1f.3 SMBus [0c05]: Intel Corporation 6 Series Chipset Family SMBus Controller [8086:1c22] (rev 04)
  03:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6205 [8086:0085] (rev 34)
  0d:00.0 System peripheral [0880]: Ricoh Co Ltd Device [1180:e823] (rev 04)

This is one of the more confusing problems I've encountered.  Thanks for your help.

Dave

jesseFrey

Member

From: Boulder CO

Registered: 2011-07-22

Posts: 24

Re: Battery monitoring partially breaks after suspend

I also have an x220 and didn't realize that I had the same issue until I saw this post. For me though xfce4-power-manager still reports everything correctly so I never noticed. I also found that if I suspend and resume on AC power the problem does not happen.

altercation

Member

From: Seattle

Registered: 2011-05-15

Posts: 136

Website

Re: Battery monitoring partially breaks after suspend

x220 tablet, same problem, even on AC.

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jesseFrey

Member

From: Boulder CO

Registered: 2011-07-22

Posts: 24

Re: Battery monitoring partially breaks after suspend

interesting I just tested mine and found that if I suspend/resume on AC it will go back to mA/mAh if it was prevously displaying mW/mWh

Sara

Member

From: USA

Registered: 2009-07-09

Posts: 221

Re: Battery monitoring partially breaks after suspend

My x220 also has this issue. ibam complains of "no apm data available" only after suspend. acpi (the program) still continues to give me battery information,
however.

Was a fix ever found for this issue? (Other than rebooting, that is.)

Last edited by Sara (2011-10-29 05:55:28)

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Schrottfresse

Member

Registered: 2012-04-04

Posts: 14

Re: Battery monitoring partially breaks after suspend

x220 here, same problem.

/var/log/kernel.log shows

Jun 11 16:06:20 localhost kernel: [18615.409779] ACPI: Waking up from system sleep state S3
Jun 11 16:06:20 localhost kernel: [18615.572830] thinkpad_acpi: EC reports that Thermal Table has changed
Jun 11 16:06:20 localhost kernel: [18615.612667] ACPI: \_SB_.PCI0.LPC_.EC__.BAT1 - docking
Jun 11 16:06:20 localhost kernel: [18615.635911] ACPI: Unable to dock!

teateawhy

Member

From: GER

Registered: 2012-03-05

Posts: 1,138

Website

Re: Battery monitoring partially breaks after suspend

On my x200i there is no battery file or folder in /proc/acpi .
However i get the same error messages.
logs:

ACPI: Waking up from system sleep state S3
ACPI: \_SB_.PCI0.LPC_.EC__.BAT1 - docking
ACPI: Unable to dock!

@dmlawrence: Do you have tp_smapi kernel module loaded? ( can be found on AUR )
It has battery functions represented in /sys like so:

....
/sys/devices/platform/smapi/BAT0/last_full_capacity # in mWh
/sys/devices/platform/smapi/BAT0/remaining_percent # remaining percent of energy (set by calibration)
/sys/devices/platform/smapi/BAT0/remaining_percent_error # error range of remaing_percent (not reset by calibration)
/sys/devices/platform/smapi/BAT0/remaining_running_time # in minutes, by last minute average power
/sys/devices/platform/smapi/BAT0/remaining_running_time_now # in minutes, by instantenous power
/sys/devices/platform/smapi/BAT0/remaining_charging_time # in minutes
/sys/devices/platform/smapi/BAT0/remaining_capacity # in mWh
/sys/devices/platform/smapi/BAT0/design_capacity # in mWh
....

A bit OT, but interesting for us thinkpad users.

There is a way to set the charge thresholds for your batteries.
It can be done with the acpi_call kernel module and a script called acpi-bat.

tpacpi-bat

acpi_call

Works on my laptop.

Schrottfresse

Member

Registered: 2012-04-04

Posts: 14

Re: Battery monitoring partially breaks after suspend

Google told me, that it may be linked to a crypted /home-volume. (Link (german))

I have an crypted /home-volume, anyone of you, too?

bassu

Member

Registered: 2011-12-21

Posts: 90

Re: Battery monitoring partially breaks after suspend

I think it is related to dockable battery which ACPI is complaining about. I also believe that it is mostly the thinkpad_acpi's developers' lack of interest that is to blame here!

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