Public bug reported:
After resume from suspend, the fan (there is only one) first speeds up to about
a normal speed and then slows down in a couple of seconds to a complete stop.
It doesn't spin up again even if the temperatures shoot way up (monitoring
using indicator-sensors or lm-sensors, both use acpitz info).
There are 2 ways to get the fan spinning again:
- reboot the system
- echo 1 > /sys/class/thermal/cooling_device[4|12...don't remember
which]/curr_state
This is happening on a clean install of Trusty from daily build that also has
the updates-proposed source enabled. Previously the laptop ran 13.10 and
suspend and resume worked fine.
Only thing is, I also updated the BIOS during formatting for Trusty, which
could cause this issue but I'm leaning more towards an ACPI issue (the latest
BIOS is from 2010 and someone would have probably noticed a problem with the
fan?)
Attached is the output from cd /sys/class/thermal && grep . */*
2&>/dev/null after first boot and after resume suspend; as can be seen,
after resume all fan states are 0 whereas on boot some are also 1.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-16-generic 3.13.0-16.36 [modified:
boot/vmlinuz-3.13.0-16-generic]
ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5
Uname: Linux 3.13.0-16-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: jernej 2582 F.... pulseaudio
/dev/snd/controlC0: jernej 2582 F.... pulseaudio
CurrentDesktop: Unity
CurrentDmesg:
[ 78.199783] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 104.824460] audit_printk_skb: 147 callbacks suppressed
[ 104.824464] type=1400 audit(1394393526.590:61): apparmor="STATUS"
operation="profile_replace" profile="unconfined"
name="/usr/lib/cups/backend/cups-pdf" pid=1986 comm="apparmor_parser"
[ 104.824472] type=1400 audit(1394393526.590:62): apparmor="STATUS"
operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd"
pid=1986 comm="apparmor_parser"
[ 104.824884] type=1400 audit(1394393526.590:63): apparmor="STATUS"
operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd"
pid=1986 comm="apparmor_parser"
Date: Sun Mar 9 20:46:48 2014
HibernationDevice: RESUME=UUID=79b35f90-100a-4582-9b65-a84fbedf5bf7
InstallationDate: Installed on 2014-03-08 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140308)
MachineType: Hewlett-Packard HP ProBook 4710s
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-16-generic
root=UUID=9561bd56-ffa3-4f61-91cf-019c359ed8e8 ro quiet splash radeon.dpm=1
vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-16-generic N/A
linux-backports-modules-3.13.0-16-generic N/A
linux-firmware 1.126
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/02/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68PZI Ver. F.18
dmi.board.name: 3074
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 24.0F
dmi.chassis.asset.tag: CNU9465LRD
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvr68PZIVer.F.18:bd12/02/2010:svnHewlett-Packard:pnHPProBook4710s:pvrF.18:rvnHewlett-Packard:rn3074:rvrKBCVersion24.0F:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ProBook 4710s
dmi.product.version: F.18
dmi.sys.vendor: Hewlett-Packard
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug trusty
** Attachment added: "/sys/class/thermal after normal boot, fan works"
https://bugs.launchpad.net/bugs/1290110/+attachment/4015401/+files/sys-class-thermal-onboot
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https://bugs.launchpad.net/bugs/1290110
Title:
Fan stops after resume from suspend leading to overheating; requires
reboot to fix [HP Probook 4710s]
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