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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Gioele Barabucci, speaking only for my own hardware, in PowerTOP -> Tunables the following was noticed:
Bad        Enable Audio codec power management

I toggled this to:
Good        Enable Audio codec power management

and noticed in Device Stats:
0.0%        Audio codec hwC0D3: Intel
0.0%        Audio codec hwC0D3: Realtek

and the 100% audio components disappeared from Overview. No audio impact
was noticed, although I only played 30 seconds of one song from YouTube.

Despite that, would you have this in Tunables, or similar option?

If so, if you toggle it to Good, would this help address the issue you
raised in this report?

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

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https://bugs.launchpad.net/bugs/1213719

Title:
  [Samsung NP900X3D-A03IT] Powertop shows 100% Device Usage for audio
  codecs

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  powertop reports that two audio codecs are both up 100% of the time,
  even when no sound is playing.

  
          100,0%        Audio codec hwC0D0: Realtek
          100,0%        Audio codec hwC0D3: Intel

  This happens on a Samsung Series 9 NP900X3D-A03IT.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.5.0-37-generic 3.5.0-37.58~precise1
  ProcVersionSignature: Ubuntu 3.5.0-37.58~precise1-generic 3.5.7.16
  Uname: Linux 3.5.0-37-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.0.1-0ubuntu17.4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  gioele     1759 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf0700000 irq 50'
     Mixer name	: 'Intel PantherPoint HDMI'
     Components	: 'HDA:10ec0269,144dc0d3,00100202 HDA:80862806,80860101,00100000'
     Controls      : 25
     Simple ctrls  : 11
  Date: Sun Aug 18 22:42:34 2013
  HibernationDevice: RESUME=UUID=7e63a512-9a2c-4503-9bd9-ec2f74a7f029
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130504)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3C/900X3D/900X3E/900X4C/900X4D
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-37-generic root=UUID=9d6c757c-fda7-49cb-9e7c-e382ebdc4d53 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-37-generic N/A
   linux-backports-modules-3.5.0-37-generic  N/A
   linux-firmware                            1.79.6
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/09/2013
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: P07ABK
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: NP900X3D-A03IT
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP07ABK:bd04/09/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3C/900X3D/900X3E/900X4C/900X4D:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP900X3D-A03IT:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 900X3C/900X3D/900X3E/900X4C/900X4D
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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