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[Bug 1226981] Re: CPUs get stuck in Turbo mode after a suspend/resume cycle on a ThinkPad X220

 

Installed.  Rebooted.  uname -a shows

  Linux platonas 3.12.0-031200rc1-generic #201309161735 SMP Mon Sep 16
21:38:21 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

At first I thought the issue showed up right after boot, but now I'm no
longer sure.  Could be just the ondemand governor ramping up the
frequency because of all that CPU activity during boot/login.

In normal circumstances the laptop's idle temperature is about +48–49°C.
When this bug happens, temperature rises steadily until  it reaches
about +72°C.

At the moment, with the 3.12 kernel, the temperature is oscillating
between +50°C and +54°C.

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https://bugs.launchpad.net/bugs/1226981

Title:
  CPUs get stuck in Turbo mode after a suspend/resume cycle on a
  ThinkPad X220

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Often, but not always, after I suspend and resume my ThinkPad X220, I
  notice that the laptop becomes hot, the fan is constantly spinning,
  and powertop shows all four CPUs stuck at 2.5 GHz.

  Suspending and resuming again fixes the issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-29-generic 3.8.0-29.42
  ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5
  Uname: Linux 3.8.0-29-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mg         2690 F.... pulseaudio
  CRDA:
   country LT:
   	(2402 - 2482 @ 40), (N/A, 20)
   	(5170 - 5250 @ 40), (N/A, 20)
   	(5250 - 5330 @ 40), (N/A, 20), DFS
   	(5490 - 5710 @ 40), (N/A, 27), DFS
  Date: Wed Sep 18 11:10:29 2013
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=bf592a79-5f4e-486d-b69d-7525d492dcc6
  InstallationDate: Installed on 2012-07-25 (419 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  Lsusb:
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: LENOVO 4291WJF
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-29-generic root=UUID=36079681-53fc-4ca2-80ac-98321c07e8d2 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-29-generic N/A
   linux-backports-modules-3.8.0-29-generic  N/A
   linux-firmware                            1.106
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to raring on 2013-04-26 (144 days ago)
  dmi.bios.date: 05/31/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8DET47WW (1.17 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4291WJF
  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:bvr8DET47WW(1.17):bd05/31/2011:svnLENOVO:pn4291WJF:pvrThinkPadX220:rvnLENOVO:rn4291WJF:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4291WJF
  dmi.product.version: ThinkPad X220
  dmi.sys.vendor: LENOVO

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