** Description changed:

- 3.9 introduced a new default governor on >= SandyBridge CPUs called
+ 3.9 introduced a new default governor on SandyBridge CPUs called
  INTEL_PSTATE which, when built in and enabled (the default), removes all
- other governors (like our usual default, ondemand)
+ other governors (like our usual default, ondemand). 3.10 extended this
+ to Ivybridge generation CPUs.
  
  In theory, this isn't an awful thing, as the new Intel pstate governor
  should be higher performance and give better power savings.  In theory.
  
  In practice, it drives my CPUs to max frequency nearly constantly, spins
  my fans like mad and, somehow, does all of this while also eating enough
  CPU time in kernel threads to make my machine choppy, unresponsive, and
  unable to do simple things like play videos when I get off work.
  
  Therefore, I propose that we, for now, toggle intel_pstate to disable by
  default (I am using intel_pstate=disable on my command line right now,
  with great success), so it's still built in, and people can play with
  it, but it's off by default.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.9.0-4-generic 3.9.0-4.9
  ProcVersionSignature: Ubuntu 3.9.0-4.9-generic 3.9.4
  Uname: Linux 3.9.0-4-generic x86_64
  ApportVersion: 2.10.2-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  adconrad   2574 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  adconrad   2574 F.... pulseaudio
  CurrentDmesg:
-  [   30.633035] init: plymouth-stop pre-start process (2079) terminated with 
status 1
-  [   36.086916] br0: port 1(eth0) entered forwarding state
+  [   30.633035] init: plymouth-stop pre-start process (2079) terminated with 
status 1
+  [   36.086916] br0: port 1(eth0) entered forwarding state
  Date: Fri Jun  7 08:48:56 2013
  HibernationDevice: RESUME=UUID=73040efa-baec-458a-8307-3bca07b26c3c
  InstallationDate: Installed on 2012-12-09 (179 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20121209)
  MachineType: LENOVO 4173LPB
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.9.0-4-generic 
root=UUID=2222aad5-ef31-4428-973f-71740fc7cb6a ro intel_pstate=disable quiet 
splash vt.handoff=7
  RelatedPackageVersions:
-  linux-restricted-modules-3.9.0-4-generic N/A
-  linux-backports-modules-3.9.0-4-generic  N/A
-  linux-firmware                           1.109
+  linux-restricted-modules-3.9.0-4-generic N/A
+  linux-backports-modules-3.9.0-4-generic  N/A
+  linux-firmware                           1.109
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/13/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8CET55WW (1.35 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4173LPB
  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:bvr8CET55WW(1.35):bd09/13/2012:svnLENOVO:pn4173LPB:pvrThinkPadT420s:rvnLENOVO:rn4173LPB:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4173LPB
  dmi.product.version: ThinkPad T420s
  dmi.sys.vendor: LENOVO

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https://bugs.launchpad.net/bugs/1188647

Title:
  Please change intel_pstate default to disable

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