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[Bug 1513886] Re: Decreased battery life after upgrade.


Daniel Holm, as per http://www.sony.co.uk/support/en/content/cnt-
dwnl/SVP1321M2E/list an update to your computer's buggy and outdated
BIOS is available (R1044V7). If you update to this following
https://help.ubuntu.com/community/BIOSUpdate does it address the issue?

If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

For more on BIOS updates and linux, please see

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful.

Also, you don't have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible, and the
information above is provided, then please mark this report Status
Confirmed. Otherwise, please mark this as Invalid.

Thank you for your understanding.

** Tags added: bios-outdated-r1044v7

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

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  Decreased battery life after upgrade.

Status in linux package in Ubuntu:

Bug description:

  In Ubuntu 15.04 I had around 7-8 hours of battery life but after
  upgrade I got half. Why? Maybe not the right package, but I don't know
  what else than the kernel. If wrong please change.

  I use lmt for increased battery life, and it is still installed (even
  reinstalled and I also tried ltp instead, but no change).

  Disabling intel p state turbo does no change. I dont really have any
  processes ruining it and it even says 4 hours after first boot.

  The battery ost 5% just while I submitted this bug report.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-16-generic 4.2.0-16.19
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
   /dev/snd/controlC0:  daniel     3401 F.... pulseaudio
   /dev/snd/pcmC1D0p:   daniel     3401 F...m pulseaudio
   /dev/snd/controlC1:  daniel     3401 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Fri Nov  6 16:46:52 2015
  HibernationDevice: RESUME=UUID=45e6f377-dcab-4fc1-a57b-5b21563164a2
  InstallationDate: Installed on 2014-11-02 (368 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Sony Corporation SVP1321M2EB
   PATH=(custom, no user)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-16-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
   linux-restricted-modules-4.2.0-16-generic N/A
   linux-backports-modules-4.2.0-16-generic  N/A
   linux-firmware                            1.149.1
  SourcePackage: linux
  UpgradeStatus: Upgraded to wily on 2015-10-25 (11 days ago)
  dmi.bios.date: 11/21/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: R1043V7
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR1043V7:bd11/21/2013:svnSonyCorporation:pnSVP1321M2EB:pvrC60C0754:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: SVP1321M2EB
  dmi.product.version: C60C0754
  dmi.sys.vendor: Sony Corporation

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