kernel-packages team mailing list archive

[Colin Ian King <1491797@xxxxxxxxxxxxxxxxxx>]

OK, no RAPL interface, so can you run "powerstat -za 1 480" instead.

The default mode for the fan is to be controlled by the firmware and not
the kernel, so the kernel has no direct control by default.   The
alternative mechanism is to enable the thinkpad_acpi fan control and
twiddle the settings either manually or by software control.   By
default though, one would expect the firmware do be able to control the
fan correctly since that what the system designers intended to be the
default fan control mode.

If you do intend to try twiddling the fan controls manually, I believe
the following instructions may work (but I've not tried these myself, so
I can't vouch that they are correct):

as root, create a new file /etc/modprobe.d/thinkpad_acpi.conf and add
the following line to it:

options thinkpad_acpi fan_control=1

..and reboot.

as root try the following to set the fan to the highest "engaged" fan
speed:

echo level 7 > /proc/acpi/ibm/fan

..hopefully that will crank the fan up to ~5100 RPM in engaged mode.

you can enabled disengaged mode using:

echo level disengaged > /proc/acpi/ibm/fan

Essentially, "engaged" mode is where the fan speed is locked to a
defined fan speed.  "disengaged" mode can be used to drive the fan
faster (I believe there is no feedback loop between the speed and a
firmware control that sets the speed in disengaged mode).   For more
details, see http://www.thinkwiki.org/wiki/How_to_control_fan_speed

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1491797

Title:
  Shuts down when supposed to suspend as a reaction to self-caused
  overheat, session lost

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Error:
  Kernel foolishly shuts down the computer when it overheats.
  /var/log/kern.log
  W500 kernel: [1448.648529] thermal thermal_zone1: critical temperature reached (100 C), shutting down

  Consequence:
  Shutting down destroys session in Ubuntu, Gnome, and all applications that can't remember their latest conscious state (most applications).

  Attempted repair, failed:
  Laptop has suspending ability, but I can't find the setting for the kernel to make the computer suspend instead of shutting down.

  Repair suggestions:
  1. Persistence of session, so that everything would reappear after the restart. (this would also make updating less disruptive)
  2. Do not heat the machine like crazy; speed up fans or slow down processes. (problematic Lenovo Thinkpad W500 fan on low speed right up to the fiery end)
  3. Put the computer to suspend when it's too hot.

  (The problem has remained the same from at least Ubuntu 11.10 through
  14.04)

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-62-generic 3.13.0-62.102
  ProcVersionSignature: Ubuntu 3.13.0-62.102-generic 3.13.11-ckt24
  Uname: Linux 3.13.0-62-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.12
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  user       2171 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu Sep  3 13:42:28 2015
  HibernationDevice: RESUME=UUID=991e1383-ff5b-46c1-84c4-c904e1d81256
  InstallationDate: Installed on 2013-12-29 (612 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: LENOVO 4063B22
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-62-generic root=UUID=bd426989-b545-41b3-97b8-de9410f27aa6 ro persistent quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-62-generic N/A
   linux-backports-modules-3.13.0-62-generic  N/A
   linux-firmware                             1.127.15
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-04-27 (494 days ago)
  dmi.bios.date: 12/14/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6FET92WW (3.22 )
  dmi.board.name: 4063B22
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr6FET92WW(3.22):bd12/14/2011:svnLENOVO:pn4063B22:pvrThinkPadW500:rvnLENOVO:rn4063B22:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4063B22
  dmi.product.version: ThinkPad W500
  dmi.sys.vendor: LENOVO

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