kernel-packages team mailing list archive

[Ingmar <madocer@xxxxxx>]

OK, sorry, but it seems that I was wrong.
The old behaviour is back, as soon as I use the laptop on battery. Before it was connected to AC power.
That seems to be one piece of the problem.
Will try to gather more info, soon.

acpi -V output:

Battery 0: Discharging, 84%, 01:03:32 remaining
Battery 0: design capacity 3692 mAh, last full capacity 3692 mAh = 100%
Adapter 0: off-line
Thermal 0: ok, 26.9 degrees C
Thermal 0: trip point 0 switches to mode critical at temperature 108.0 degrees C
Thermal 0: trip point 1 switches to mode passive at temperature 55.0 degrees C
Thermal 1: active, 75.0 degrees C
Thermal 1: trip point 0 switches to mode critical at temperature 108.0 degrees C
Thermal 1: trip point 1 switches to mode passive at temperature 100.0 degrees C
Thermal 1: trip point 2 switches to mode active at temperature 92.0 degrees C
Thermal 1: trip point 3 switches to mode active at temperature 84.0 degrees C
Thermal 1: trip point 4 switches to mode active at temperature 69.0 degrees C
Cooling 0: LCD 0 of 24
Cooling 1: Processor 0 of 3
Cooling 2: Processor 0 of 3
Cooling 3: Processor 0 of 3
Cooling 4: Processor 0 of 3
Cooling 5: Fan 0 of 1
Cooling 6: Fan 0 of 1
Cooling 7: Fan 0 of 1
Cooling 8: Fan 0 of 1
Cooling 9: Fan 0 of 1


It seems that it somehow waits for the CPU tpo reach ~80°C, with the fan completely OFF. Then it turns the fan on at 100% speed. And that repeats itself every few minutes, depending on load, of course.
BTW, I am running Debian, but this seems to be a Kernel bug anyway.
I don't have much time ATM, but will probably file an upstream bug, as soon as I have the time and the necessary info.

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https://bugs.launchpad.net/bugs/1315836

Title:
  [HP 625 Notebook PC] Fan speed control inactive after suspend to ram
  and sometimes on reboot

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  After resuming from RAM and sometimes after rebooting, fan control
  appears to be inactive, resulting in no fan activity at all until at
  85°C the fan kicks in at full speed for a short time, only to cease
  all activity again until the temperature reaches 85°C again.

  This started occurring after upgrading from Ubuntu 13.10 to 14.04 LTS.

  Identical behaviour on kernel v3.13.9-trusty.

  I have regrettably already removed older kernel versions, so I am not
  able to verify that the problem does not occur with them.

  I am currently partially circumventing the problem by having
  */2 *    * * * echo 1 | tee /sys/class/thermal/cooling_device[0-4]/cur_state >/dev/null 2>&1
  added to crontab -e.

  May be related to:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1312860

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-24-generic 3.13.0-24.46
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic i686
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  josias     3291 F.... pulseaudio
   /dev/snd/controlC0:  josias     3291 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun May  4 11:51:03 2014
  HibernationDevice: RESUME=UUID=e922940f-3aae-4de7-9479-05b0092ddd04
  InstallationDate: Installed on 2011-06-16 (1052 days ago)
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
  MachineType: Hewlett-Packard HP 625
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=a6a391c7-e65c-4c35-97dc-6d5d3049a09e ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127.1
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-04-23 (11 days ago)
  dmi.bios.date: 12/07/2010
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68DVA Ver. F.06
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 1475
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 72.0E
  dmi.chassis.asset.tag: CNU1060T5H
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68DVAVer.F.06:bd12/07/2010:svnHewlett-Packard:pnHP625:pvr:rvnHewlett-Packard:rn1475:rvrKBCVersion72.0E:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP 625
  dmi.sys.vendor: Hewlett-Packard

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