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[Bug 1452460] Re: Turbo mode on i7 is not enabled upon resume


I do not use the workaround, and turbo mode is automatically enabled.

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  Turbo mode on i7 is not enabled upon resume

Status in linux package in Ubuntu:

Bug description:
  Turbo mode is not enabled upon resume from suspend.

  To enable I must issue:

  ``echo 0 | sudo tee /sys/devices/system/cpu/intel_pstate/no_turbo
  echo 1 | sudo tee /sys/devices/system/cpu/intel_pstate/no_turbo
  echo 0 | sudo tee /sys/devices/system/cpu/intel_pstate/no_turbo``

  I would expect that Turbo was re-enabled by default from resume.

  I created a script in /usr/lib/pm-utils/sleep.d/ to issue the above
  commands, but clearly that mechanism is depreciated.

  I am reporting this bug against systemd as I assume that it is
  managing the running of startup and resume scripts.

  A quick hack solution would be appreciated in the short term.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: systemd 219-7ubuntu4
  Uname: Linux 4.0.0-040000rc7-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu May  7 09:11:12 2015
  InstallationDate: Installed on 2015-04-14 (22 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326)
  MachineType: Acer Aspire S7-392
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.0.0-040000rc7-generic root=UUID=57b63ba3-bc33-40b5-931f-8654d6c5cab4 ro rootflags=subvol=@ noprompt persistent quiet splash vt.handoff=7
  SourcePackage: systemd
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/20/2014
  dmi.bios.vendor: Insyde Corp.
  dmi.bios.version: V2.12
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Storm2
  dmi.board.vendor: Acer
  dmi.board.version: V2.12
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V2.12
  dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.12:bd05/20/2014:svnAcer:pnAspireS7-392:pvrV2.12:rvnAcer:rnStorm2:rvrV2.12:cvnAcer:ct10:cvrV2.12:
  dmi.product.name: Aspire S7-392
  dmi.product.version: V2.12
  dmi.sys.vendor: Acer

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