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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

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

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https://bugs.launchpad.net/bugs/1484616

Title:
  pstate_idle is broken on 4.1, high fan speed when idle

Status in linux package in Ubuntu:
  Triaged

Bug description:
  The system has high fan speed even when idle. Overall, the fan never
  gets to a fan speed as low as with the 3.13 kernel.

  When running the kernel with intel_pstate=disable, i get much more
  governor choices, and when selecting "powersave" with this, i get much
  better behavior, just as with the 3.13 kernel.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.1.0-3-generic 4.1.0-3.3
  ProcVersionSignature: Ubuntu 4.1.0-3.3-generic 4.1.3
  Uname: Linux 4.1.0-3-generic x86_64
  ApportVersion: 2.18-0ubuntu6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  daniel     1764 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Thu Aug 13 19:29:31 2015
  HibernationDevice: RESUME=UUID=46d75d9b-22b0-497f-b169-c644d6e0df61
  InstallationDate: Installed on 2015-02-05 (188 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150205)
  MachineType: Dell Inc. Dell System XPS L502X
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.1.0-3-generic root=UUID=2f827672-ff82-4172-b6cc-5235e95473e8 ro quiet splash intel_pstate=disable
  RelatedPackageVersions:
   linux-restricted-modules-4.1.0-3-generic N/A
   linux-backports-modules-4.1.0-3-generic  N/A
   linux-firmware                           1.146
  SourcePackage: linux
  UpgradeStatus: Upgraded to wily on 2015-05-28 (76 days ago)
  dmi.bios.date: 10/20/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 0NJT03
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA07:bd10/20/2011:svnDellInc.:pnDellSystemXPSL502X:pvr:rvnDellInc.:rn0NJT03:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS L502X
  dmi.sys.vendor: Dell Inc.

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