i can confirm this, i was hoping that the kernel on Oneiric had some
fixes for us x201 users but i have also noticed that the threshold is
reached sooner than with the previous kernel.

my only question is:

anyone knows if this is also the case under debian?

im ready to migrate cause of this bug.



On Mon, Dec 12, 2011 at 3:57 AM, Jeff Lane <email address hidden> wrote:
> I can confirm that this also has passed on to Oneiric.  Also, I think
> this constant low fan speed HAS indeed caused some system damage from
> long-term high temps.
>
> I'm seeing periodic failures of the wireless card after the system has
> warmed up for a while.  After doing some checking I noticed via sensors
> that the temps were hitting ~85 degrees C and hovering there with the
> fan set to auto.  Since this doesn't adequately cool the machine down, I
> think it's caused the wireless card to become flaky (this is the second
> wireless card I've had in the machine).
>
> I've since set the fan to disengaged and it's currently running on AC at
> ~5400 RPM and the system is MUCH cooler (around 70 deg C).
>
> This morning, the system had heated up to 97 deg C before I realized
> what was going on. I've not hit the 100 deg threshold yet (or not in a
> long time) but my x201 is also a Core i5, so that may account for it not
> heating up as quickly as an i7 will.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/751689
>
> Title:
>  Thinkpads overheat due to slow fans when on 'auto'
>
> Status in “linux” package in Ubuntu:
>  Confirmed
> Status in “linux” source package in Maverick:
>  In Progress
> Status in “linux” source package in Natty:
>  Confirmed
> Status in “thinkfan” package in Debian:
>  Fix Released
> Status in “linux” package in Fedora:
>  Unknown
>
> Bug description:
>  On my Thinkpad x201s with an i7, if I utilize all of the CPUs/hyperthreads, the machine can be made to overheat very quickly. This is because of the default level setting of 'auto' in /proc/acpi/ibm/fan. On 'auto', the fan only ever goes up to around 4500rpm, while in 'disengaged' mode it can go as high as 6400rpm. At 4500rpm, the CPU continues to climb until the system is forcibly shutdown at 100C. If I reload thinkpad_acpi like so:
>  $ sudo rmmod thinkpad_acpi
>  $ sudo modprobe thinkpad_acpi fan_control=1
>
>  Then I can set the fan to disengaged mode manually:
>  echo "level disengaged" > /proc/acpi/ibm/fan
>
>  With this setting, I can utilize all of the CPUs for an extended time
>  and not surpass 85C, still pretty hot but well under the 100C range.
>  Furthermore, setting to level '7' (the supposed max fan speed) runs
>  the fan at ~5300, well below the maximum fan speed.
>
>  In maverick this did not seem to be as much of a problem (perhaps
>  because of the lack of the big kernel lock in natty?).
>
>  Related bugs:
>  https://bugzilla.redhat.com/show_bug.cgi?id=675433
>  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=610722 (against thinkfan package, but demonstrates that other x201 users are having the same problem)
>
>  ProblemType: Bug
>  DistroRelease: Ubuntu 11.04
>  Package: linux-image-2.6.38-7-generic 2.6.38-7.39
>  Regression: Yes
>  Reproducible: Yes
>  ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
>  Uname: Linux 2.6.38-7-generic x86_64
>  AcpiTables:
>   Error: command ['gksu', '-D', 'Apport', '--', '/usr/share/apport/dump_acpi_tables.py'] failed with exit code 1: GNOME_SUDO_PASS
>   Sorry, try again.
>   sudo: 3 incorrect password attempts
>  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
>  Architecture: amd64
>  ArecordDevices:
>   **** List of CAPTURE Hardware Devices ****
>   card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
>     Subdevices: 1/1
>     Subdevice #0: subdevice #0
>  AudioDevicesInUse:
>   USER        PID ACCESS COMMAND
>   /dev/snd/controlC0:  jamie      2641 F.... pulseaudio
>   /dev/snd/pcmC0D0p:   jamie      2641 F...m pulseaudio
>  CRDA: Error: [Errno 2] No such file or directory
>  Card0.Amixer.info:
>   Card hw:0 'Intel'/'HDA Intel at 0xf2520000 irq 43'
>     Mixer name : 'Intel IbexPeak HDMI'
>     Components : 'HDA:14f15069,17aa2156,00100302 HDA:80862804,17aa21b5,00100000'
>     Controls      : 12
>     Simple ctrls  : 6
>  Card29.Amixer.info:
>   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6QHT28WW-1.09'
>     Mixer name : 'ThinkPad EC 6QHT28WW-1.09'
>     Components : ''
>     Controls      : 1
>     Simple ctrls  : 1
>  Card29.Amixer.values:
>   Simple mixer control 'Console',0
>     Capabilities: pswitch pswitch-joined penum
>     Playback channels: Mono
>     Mono: Playback [on]
>  Date: Tue Apr  5 11:56:28 2011
>  EcryptfsInUse: Yes
>  HibernationDevice: RESUME=UUID=58280e6e-d161-43ea-8593-a89fb7b6851a
>  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
>  MachineType: LENOVO 5129CTO
>  ProcEnviron:
>   LANGUAGE=en_US:en
>   PATH=(custom, user)
>   LANG=en_US.UTF-8
>   SHELL=/bin/bash
>  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-7-generic root=UUID=82571cfb-fdda-4d2f-b708-f8924aa0fe21 ro quiet splash vt.handoff=7
>  RelatedPackageVersions:
>   linux-restricted-modules-2.6.38-7-generic N/A
>   linux-backports-modules-2.6.38-7-generic  N/A
>   linux-firmware                            1.49
>  SourcePackage: linux
>  UpgradeStatus: Upgraded to natty on 2011-02-24 (39 days ago)
>  dmi.bios.date: 04/20/2010
>  dmi.bios.vendor: LENOVO
>  dmi.bios.version: 6QET44WW (1.14 )
>  dmi.board.name: 5129CTO
>  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:bvr6QET44WW(1.14):bd04/20/2010:svnLENOVO:pn5129CTO:pvrThinkPadX201s:rvnLENOVO:rn5129CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
>  dmi.product.name: 5129CTO
>  dmi.product.version: ThinkPad X201s
>  dmi.sys.vendor: LENOVO
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689/+subscriptions



-- 
http://trueque.labsurlab.co/
https://n-1.cc/pg/profile/alejo