Hi,
that bug has been fixed since realease 11.04
Raphaël

2012/2/11 Brad Figg <email address hidden>

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> ** Changed in: linux (Ubuntu)
>      Assignee: Nanda Firdaus (nandafirdaus) => (unassigned)
>
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> report.
> https://bugs.launchpad.net/bugs/508674
>
> Title:
>   CPU cooling fan doesn't work at all on lucid
>
> Status in “linux” package in Ubuntu:
>   Confirmed
>
> Bug description:
>  Hi, I recently purchase a Benq laptop (joybook S57B) and I experience
> trouble with the high temperature of the cpu : the bios turn off the
> machine to prevent CPU overheating. I'm currently running kernel
> 2.6.32.10-generic which comes with lucid alpha2 (january-14).
> sensors-detect do not detects the cpu's fan.
>  The cooling cpu fan seems do not work at all when the kernel boot, and
> that happened with all debian-like distro i tried (karmic, lenny, debian
> testing, knoppix). However i'd say that when i turn off the laptop the
> ubuntu logo remain on the screen (which is another bug i guess linked with
> this alpha release) and suddenly the fan is working...
>  I found the reporting bug/451337 seems little similar but no same. May
> anybody found that same issue on that laptop in order to release a patch to
> solve it ? Regarding all the kernel i tried, I now considering that a best
> option will be to change the cpu cooling fan for another one compatible
> with the ubuntu hardware request. Can you please help me to solve that
> issue or provide advice on a model/brand for a new fan. Many thanks.
>   ---
>  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
>  Architecture: i386
>  ArecordDevices:
>   **** List of CAPTURE Hardware Devices ****
>   card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
>     Subdevices: 1/1
>     Subdevice #0: subdevice #0
>  AudioDevicesInUse:
>   USER        PID ACCESS COMMAND
>   /dev/snd/controlC0:  ubuntu     2982 F.... pulseaudio
>  CRDA: Error: [Errno 2] No such file or directory
>  Card0.Amixer.info:
>   Card hw:0 'Intel'/'HDA Intel at 0xfddf8000 irq 22'
>     Mixer name : 'Realtek ALC269'
>     Components : 'HDA:10ec0269,17ff0804,00100004
> HDA:11c11040,17ff0804,00100200'
>     Controls      : 18
>     Simple ctrls  : 10
>  Card1.Amixer.info:
>   Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfebec000 irq 17'
>     Mixer name : 'ATI R6xx HDMI'
>     Components : 'HDA:1002aa01,00aa0100,00100100'
>     Controls      : 4
>     Simple ctrls  : 1
>  Card1.Amixer.values:
>   Simple mixer control 'IEC958',0
>     Capabilities: pswitch pswitch-joined penum
>     Playback channels: Mono
>     Mono: Playback [off]
>  DistroRelease: Ubuntu 10.04
>  LiveMediaBuild: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
>  MachineType: BenQ Joybook S57
>  Package: linux (not installed)
>  ProcCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/hostname.seed
> boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
>  ProcEnviron:
>   LANG=en_US.UTF-8
>   SHELL=/bin/bash
>  ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
>  Regression: No
>  RelatedPackageVersions: linux-firmware 1.34
>  Reproducible: Yes
>  RfKill:
>   0: phy0: Wireless LAN
>    Soft blocked: no
>    Hard blocked: no
>  Tags: lucid kconfig needs-upstream-testing
>  Uname: Linux 2.6.32-21-generic i686
>  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
>  dmi.bios.date: 04/16/2009
>  dmi.bios.vendor: American Megatrends Inc.
>  dmi.bios.version: 1.04
>  dmi.board.asset.tag: To Be Filled By O.E.M.
>  dmi.board.name: Joybook S57
>  dmi.board.vendor: BenQ
>  dmi.board.version: Puma 3.5
>  dmi.modalias:
> dmi:bvnAmericanMegatrendsInc.:bvr1.04:bd04/16/2009:svnBenQ:pnJoybookS57:pvr1.04:rvnBenQ:rnJoybookS57:rvrPuma3.5:
>  dmi.product.name: Joybook S57
>  dmi.product.version: 1.04
>  dmi.sys.vendor: BenQ
>
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