kernel-packages team mailing list archive

[Rainer <1164557@xxxxxxxxxxxxxxxxxx>]

Hi Christopher,

the problem is not the the power consuming procceses. It is normal that
processing of videos or graphis are power consuming.

I see no reason that the processor overheat if both processors are used
at 100%. Before Precise it works and under Windows too. Powersave brings
my processors to work at 1GHz every time. With Ondemand it switches
between 1, 1.33 and 1.88GHz. If the processors go to hot the Linux
should reduce the VID or  automaticaly lower the CPU frequence for
while.

I circumvent the problem by my private pearl script which switches
between powersave and ondemand.

I attach the script for understanding.

I would like to take a look in the source where the VID is set to
understand the problem. But I don't find the rigth source module.

As a summary the top power comsuming tasks are normal and need not to be
identified.

Hope this clearify and regards Rainer


** Attachment added: "Pearl script to bypass overheating of cpu"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1164557/+attachment/3909443/+files/temp-ctl.pl

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

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https://bugs.launchpad.net/bugs/1164557

Title:
  [Lenovo ThinkPad R60] Laptop to hot - VID to high

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  My laptop goes to very high temperature. First I think it was a fan
  problem. I adjusted thinkfan to use the disengaged option. Now my fan
  is at maximum speed if the temperature goes over 67°C. But still it is
  not possible to run the laptop for a longer time an 100% CPU. It then
  overheats and stops working. For example just after clamscan starts
  working the fan is at maximum speed (5600 revolutions) and the
  temperature goes up over 85°C, the CPU usage is the about 70%.

  My standard governer is "ondemand". By using "powersave" the
  temperature will be about 5-10°C decrease.

  My investigation show me that in my opinion the VID is to high. To verify this I do the following:
  -  rdmsr -p0 [1] 0x0199 for every speed steps
  -  the governer "ondemand" switches the MSR 0x199 between
     - 0x0613, which means 1GHz and 1.275V?
     - 0x081c, which means 1,33GHz and 1.3875V?
     - 0x0b28, which means 1,83GHz and 1.5375V?
  > by 100% CPU the laptop overheats and stops

  - set the governer to userspace 1.833GHz
  - reduce the VID using: wrmsr -p0 [1] 0x0199 0x0b20
  > the temperature goes not over 65°C by starting load that goes to 100% CPU!.

  I see that the VID is always set to 0x0b28 when the governor change
  the speed to the highest speed. I don't know if the governor or an
  other kernel module set the VID The Sped (FID) is selected by the
  governor.

  The FID/VID vor maximum should be set to 0x0b20 instead 0x0B28 and
  every thing would fine.

  sudo lshw -C display; uname -a; lsb_release -a
    *-display
         description: VGA compatible controller
         product: Radeon Mobility X1400
         vendor: Hynix Semiconductor (Hyundai Electronics)
         physical id: 0
         bus info: pci@0000:01:00.0
         version: 00
         width: 32 bits
         clock: 33MHz
         capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
         configuration: driver=radeon latency=0
         resources: irq:16 memory:d8000000-dfffffff ioport:2000(size=256) memory:ee000000-ee00ffff memory:ee020000-ee03ffff
  Linux BN591-LINUX 3.2.0-40-generic-pae #64-Ubuntu SMP Mon Mar 25 21:44:41 UTC 2013 i686 i686 i386 GNU/Linux
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu 12.04.2 LTS
  Release:	12.04
  Codename:	precise

  ---
  ApportVersion: 2.12.6-0ubuntu1
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     3165 F.... pulseaudio
  CasperVersion: 1.336ubuntu1
  CurrentDmesg:
   [   71.182993] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
   [   71.185122] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
   [   71.982542] iwl3945 0000:03:00.0: loaded firmware version 15.32.2.9
   [   72.055058] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
   [   72.055518] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
  DistroRelease: Ubuntu 14.04
  LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha i386 (20131108)
  MachineType: LENOVO 9461DXG
  MarkForUpload: True
  Package: linux (not installed)
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  ProcVersionSignature: Ubuntu 3.12.0-2.5-generic 3.12.0
  RelatedPackageVersions:
   linux-restricted-modules-3.12.0-2-generic N/A
   linux-backports-modules-3.12.0-2-generic  N/A
   linux-firmware                            1.117
  Tags:  trusty
  Uname: Linux 3.12.0-2-generic i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 08/28/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7CETD3WW (2.23 )
  dmi.board.name: 9461DXG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr7CETD3WW(2.23):bd08/28/2009:svnLENOVO:pn9461DXG:pvrThinkPadR60:rvnLENOVO:rn9461DXG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 9461DXG
  dmi.product.version: ThinkPad R60
  dmi.sys.vendor: LENOVO

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