kernel-packages team mailing list archive

[Daniel Holm <d.holmen@xxxxxxxxx>]

Public bug reported:

Hi,

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
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /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
ProcEnviron:
 LANGUAGE=sv
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=sv_SE.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-16-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 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

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug wily

-- 
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https://bugs.launchpad.net/bugs/1513886

Title:
  Decreased battery life after upgrade.

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  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
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /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
  ProcEnviron:
   LANGUAGE=sv
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=sv_SE.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-16-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   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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