** Changed in: linux (Ubuntu Precise)
Assignee: Andy Whitcroft (apw) => (unassigned)
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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
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