[HP Probook 4510s] Fan at full speed after suspend

[Davide Depau]

When I turn on the PC, the fan runs normally and I have no issues at all. However, if I suspend the computer and resume it, the fan runs at full speed, regardless of the actual internal temperature. This is very annoying in libraries.

This bug has been around for years, I just didn't need the computer in quiet places back then, so I never reported it.
I believe it didn't happen with Maverick.

I'm running Ubuntu 15.10, with Linux 4.2.0-14-generic x86_64 (systemd).

Other (probably) useful information:
https://bugzilla.redhat.com/show_bug.cgi?id=895276
https://bbs.archlinux.org/viewtopic.php?id=89235
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1173997

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-14-generic 4.2.0-14.16
ProcVersionSignature: Ubuntu 4.2.0-14.16-generic 4.2.2
Uname: Linux 4.2.0-14-generic x86_64
ApportVersion: 2.19.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: davideddu 3441 F.... pulseaudio
 /dev/snd/seq: timidity 971 F.... timidity
Date: Sat Oct 10 12:17:48 2015
HibernationDevice: RESUME=UUID=91dfd5b8-4d71-4adf-bef2-b614d3874c91
InstallationDate: Installed on 2014-12-07 (306 days ago)
InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: Hewlett-Packard HP ProBook 4510s
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-14-generic.efi.signed root=UUID=64da7c2d-9769-48ec-b34b-22339a33c767 ro quiet splash vt.handoff=7
PulseList:
 Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
 No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-4.2.0-14-generic N/A
 linux-backports-modules-4.2.0-14-generic N/A
 linux-firmware 1.149
SourcePackage: linux
UpgradeStatus: Upgraded to wily on 2015-09-15 (24 days ago)
dmi.bios.date: 12/09/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68PZI Ver. F.20
dmi.board.name: 3072
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 24.0F
dmi.chassis.asset.tag: CNU0114QT2
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68PZIVer.F.20:bd12/09/2011:svnHewlett-Packard:pnHPProBook4510s:pvrF.20:rvnHewlett-Packard:rn3072:rvrKBCVersion24.0F:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ProBook 4510s
dmi.product.version: F.20
dmi.sys.vendor: Hewlett-Packard

[Brad Figg (brad-figg)]

This change was made by a bot.

[penalvch (penalvch)]

Davide Depau, thank you for reporting this and helping make Ubuntu better. Could you please test the latest upstream kernel available from the very top line at the top of the page from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release names are irrelevant for testing, and please do not test the daily folder)? Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow additional upstream developers to examine the issue.

If the latest kernel 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 issue 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-X.Y-rcZ

Where X, Y, and Z are numbers corresponding to the kernel version.

If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream.

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

Thank you for your understanding.

[Davide Depau (depau)]

The bug is still around.

[penalvch (penalvch)]

Davide Depau, the next step is to fully commit bisect from kernel 2.6.35 to 2.6.38 in order to identify the last good kernel commit, followed immediately by the first bad one. This will allow for a more expedited analysis of the root cause of your issue. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ?

Please note, finding adjacent kernel versions is not fully commit bisecting.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Davide Depau (depau)]

How am I supposed to do that? Will such an old kernel work on wily?

On Oct 12, 2015 1:25 AM, "Christopher M. Penalver" <email address hidden> wrote:
>
> Davide Depau, the next step is to fully commit bisect from kernel 2.6.35
> to 2.6.38 in order to identify the last good kernel commit, followed
> immediately by the first bad one. This will allow for a more expedited
> analysis of the root cause of your issue. Could you please do this
> following https://wiki.ubuntu.com/Kernel/KernelBisection ?
>
> Please note, finding adjacent kernel versions is not fully commit
> bisecting.
>
> Thank you for your understanding.
>
> Helpful bug reporting tips:
> https://wiki.ubuntu.com/ReportingBugs
>
> ** Changed in: linux (Ubuntu)
>        Status: Confirmed => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1504751
>
> Title:
>   [HP Probook 4510s] Fan at full speed after suspend
>
> Status in linux package in Ubuntu:
>   Incomplete
>
> Bug description:
>   When I turn on the PC, the fan runs normally and I have no issues at
>   all. However, if I suspend the computer and resume it, the fan runs at
>   full speed, regardless of the actual internal temperature. This is
>   very annoying in libraries.
>
>   This bug has been around for years, I just didn't need the computer in quiet places back then, so I never reported it.
>   I believe it didn't happen with Maverick.
>
>   I'm running Ubuntu 15.10, with Linux 4.2.0-14-generic x86_64
>   (systemd).
>
>   Other (probably) useful information:
>   https://bugzilla.redhat.com/show_bug.cgi?id=895276
>   https://bbs.archlinux.org/viewtopic.php?id=89235
>   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1173997
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 15.10
>   Package: linux-image-4.2.0-14-generic 4.2.0-14.16
>   ProcVersionSignature: Ubuntu 4.2.0-14.16-generic 4.2.2
>   Uname: Linux 4.2.0-14-generic x86_64
>   ApportVersion: 2.19.1-0ubuntu2
>   Architecture: amd64
>   AudioDevicesInUse:
>    USER        PID ACCESS COMMAND
>    /dev/snd/controlC0:  davideddu   3441 F.... pulseaudio
>    /dev/snd/seq:        timidity    971 F.... timidity
>   Date: Sat Oct 10 12:17:48 2015
>   HibernationDevice: RESUME=UUID=91dfd5b8-4d71-4adf-bef2-b614d3874c91
>   InstallationDate: Installed on 2014-12-07 (306 days ago)
>   InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
>   MachineType: Hewlett-Packard HP ProBook 4510s
>   ProcFB: 0 inteldrmfb
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-14-generic.efi.signed root=UUID=64da7c2d-9769-48ec-b34b-22339a33c767 ro quiet splash vt.handoff=7
>   PulseList:
>    Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
>    No PulseAudio daemon running, or not running as session daemon.
>   RelatedPackageVersions:
>    linux-restricted-modules-4.2.0-14-generic N/A
>    linux-backports-modules-4.2.0-14-generic  N/A
>    linux-firmware                            1.149
>   SourcePackage: linux
>   UpgradeStatus: Upgraded to wil...

[Oliver Joos (oliver-joos)]

I have here two HP Compaq nx8220 which are affected by this bug. They have a Pentium M (32bit).

I see this bug since kernel 3.19.0-32-generic and also with 4.2.0-19-generic (newest Ubuntu Kernel)
With Kernels 3.13.x and 3.16.x resume works and fan stays calm.
In the forums some says that this bug first appeared in kernel 3.17.x: http://ubuntuforums.org/showthread.php?t=2294906

=== My current workaround ===
Create a new file /usr/lib/pm-utils/sleep.d/99calm_fans that contains:
__________________________________
#!/bin/sh
case "${1}" in
  hibernate|suspend)
    ;;
  thaw|resume)
    # Calm fans after resume (bug in kernel >= 3.17.x)
    for dev in /sys/class/thermal/cooling_device[0-9] ; do
      echo -n 0 >${dev}/cur_state
      # sleep 2
    done
    ;;
  *)
    #exit $NA
    ;;
esac
__________________________________

And set execution bits by:
sudo chmod 755 /usr/lib/pm-utils/sleep.d/99calm_fans

[Oliver Joos (oliver-joos)]

BTW: this bug appeared already in 2013 in kernel 3.8.x, see bug 1173997

[penalvch (penalvch)]

Oliver Joos, this report has nothing to do with your hardware. However, if you would like your issue addressed, it will help immensely if you filed a new report via a terminal:
ubuntu-bug linux

Please feel free to subscribe me to it.