Comment 14 for bug 1452460

I have never used this machine with anything less than 15.04, so sorry I
cannot say.

On 10 May 2015 at 12:13, Christopher M. Penalver <
<email address hidden>> wrote:

> Jasper, did this issue not occur in a release prior to Vivid?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1452460
>
> Title:
> Turbo mode on i7 is not enabled upon resume
>
> Status in linux package in Ubuntu:
> Incomplete
>
> 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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