[Toshiba Satellite P50-B-10V] CPU Fan stops working

[Sérgio Serra]

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
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /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
RelatedPackageVersions:
 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

[Brad Figg (brad-figg)]

This change was made by a bot.

[Sérgio Serra (a-sergio-serra)]

Hi Crhistopher,

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

The output of sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date:

1.50
12/09/2014

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!

Regards,
Sérgio

[penalvch (penalvch)]

Sérgio Serra, could you please test the latest upstream kernel available from the very top line at the top of the page (the release names are irrelevant for testing, and please do not test the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue.

If the test did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-3.XY-rcZ

Where XY and Z are numbers corresponding to the kernel version.

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-3.XY-rcZ

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results.

Thank you for your understanding.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[Sérgio Serra (a-sergio-serra)]

Still happens on ubuntu 15.04

[Sérgio Serra (a-sergio-serra)]

Can anyone look at this?

[Brad Figg (brad-figg)]

This change was made by a bot.

[penalvch (penalvch)]

Sérgio Serra, this has been pending the results of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1430573/comments/5 .

[Sérgio Serra (a-sergio-serra)]

Hi Christopher as I said on https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1430573/comments/7 it still happens with 15.04 that has a latest kernel version. Isn't that good enough?

Regards

[penalvch (penalvch)]

Sérgio Serra:
>"it still happens with 15.04 that has a latest kernel version."

That's not the latest mainline kernel. Hence, upstream doesn't care about your issue unless it's reproducible in their (not Ubuntu's) kernel.

Also, this is not currently considered Status Triaged as outlined in https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Triaged_Bugs .

For more on Status, please see https://wiki.ubuntu.com/Bugs/Status .

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]