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[Bug 1430573] Re: [Toshiba Satellite] CPU Fan stops working


Hi Crhistopher,

I've done the BIOS update but the problem persists.

The output of sudo dmidecode -s bios-version && sudo dmidecode -s bios-


This is the sequence that lead to the problem this time:

1 - Turn on computer on battery power and used it for a while. 
2 - Suspended it
3 - Connected computer to power cable, external monitor and some USB devices 
4 - Back from suspension and the computer starts to heat because no fan working 

Thank you for your help!


** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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  [Toshiba Satellite] CPU Fan stops working

Status in linux package in Ubuntu:

Bug description:
  Usually CPU fan works as expected but in some situations stops working
  causing high temperatures and drastically reduces system performance.

  I haven't found a pattern on this but I think it happens  on the
  following sequence:

  1 - Suspend the computer while connected to power cord
  2 - Disconnect from power and resume system running on battery
  3  - Suspend the system (still on battery)
  4 - Connect power cord, resume system and fan will not work

  As I said I haven't found a pattern, but i THINK this is sequence of
  events that leads to fan failure.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-46-generic 3.13.0-46.77
  ProcVersionSignature: Ubuntu 3.13.0-46.77-generic 3.13.11-ckt15
  Uname: Linux 3.13.0-46-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
   /dev/snd/controlC0:  sergio     2411 F.... pulseaudio
   /dev/snd/controlC1:  sergio     2411 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Mar 10 22:48:25 2015
  HibernationDevice: RESUME=UUID=2fb09cf4-0e74-44ac-ba0e-6951a8fec68f
  InstallationDate: Installed on 2014-10-21 (140 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: TOSHIBA SATELLITE P50-B-10V
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-46-generic root=UUID=d4828a34-5407-480d-b859-59789f132319 ro quiet splash radeon.audio=1 vt.handoff=7
   linux-restricted-modules-3.13.0-46-generic N/A
   linux-backports-modules-3.13.0-46-generic  N/A
   linux-firmware                             1.127.11
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/03/2014
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: 1.10
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: VG20SQ
  dmi.board.vendor: TOSHIBA
  dmi.board.version: To be filled by O.E.M.
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: TOSHIBA
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnTOSHIBA:bvr1.10:bd04/03/2014:svnTOSHIBA:pnSATELLITEP50-B-10V:pvrPSPNUE-00W00EEP:rvnTOSHIBA:rnVG20SQ:rvrTobefilledbyO.E.M.:cvnTOSHIBA:ct10:cvrToBeFilledByO.E.M.:
  dmi.product.name: SATELLITE P50-B-10V
  dmi.product.version: PSPNUE-00W00EEP
  dmi.sys.vendor: TOSHIBA

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