This issue is occuring for me since a very long time; using Windows the fans have a much higher speed setting compared to using Linux and the thinkpad-acpi driver. However, since the use of Maverick I experience a lot more automatic shutdowns, triggered by thinkpad-acpi, due to overheating. Before, I was using Karmic and also experienced it sometimes.
When monitoring the temperatures manually and setting a fan speed accordingly the CPU is cooled properly, but thinkpad-acpi never triggers higher CPU fan speeds even when > 95 °C! That is, in my opinion, a bug. I'm having this issue on my T61p - C2D T9300 w/ Nvidia QuadroFX 570M. Both need quite a lot of cooling, especially when using the docking station (less ventilation, more isolation on the bottom). That's why I don't think this issue is specific for one Thinkpad model, but occuring as soon as you start using thinkpad-acpi, also in older versions of Ubuntu. And yes, it's a universe piece of software not part of the core of Ubuntu, but this should really be fixed as it might cause hardware failures. I think running a user space software daemon as a workaround is rather 'dirty'. More hardware related, but still not justifying the behaviour of thinkpad-acpi: I noticed there was an awful lot of thermal grease on both the CPU and the GPU for the integrated heatsink/fan in my Thinkpad, I cleaned it, replaced this with a proper amount of thermal grease and temperatures are 10 °C lower since then. [https://www.bountysource.com/issues/1033632-lenovo-thinkpad-x201s- overheat-due-to-slow-fans-when-on-auto .] -- 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/751689 Title: [Lenovo Thinkpad x201s] Overheat due to slow fans when on 'auto' Status in linux package in Ubuntu: Fix Released Status in linux source package in Maverick: Won't Fix Status in linux source package in Natty: Won't Fix Status in linux source package in Precise: 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 -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
