Public bug reported:
Powertop and powertop-1.13 report the audio device on a Lenovo X61 is
active 100% of the time.
This is not caused by pulseaudio; the same is reported if the GUI is
entirely shut down and powertop is run from the console.
In previous releases (maverick) this was accompanied by a persistent
buzz from the internal speaker when unmuted. The buzz is gone in
precise, but the power usage is still there.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-22-generic 3.2.0-22.35
ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14
Uname: Linux 3.2.0-22-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0-0ubuntu4
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: harmoney 2948 F.... pulseaudio
Date: Sun Apr 8 17:14:05 2012
HibernationDevice: RESUME=UUID=bd0eb6d7-98ad-48de-84de-16cda961fa70
MachineType: LENOVO 7675CTO
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcEnviron:
TERM=xterm
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-22-generic
root=/dev/mapper/hostname-root ro quiet splash vt.handoff=7
SourcePackage: linux
UpgradeStatus: Upgraded to precise on 2012-04-09 (0 days ago)
WpaSupplicantLog:
dmi.bios.date: 10/22/2007
dmi.bios.vendor: LENOVO
dmi.bios.version: 7NET29WW (1.10 )
dmi.board.name: 7675CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr7NET29WW(1.10):bd10/22/2007:svnLENOVO:pn7675CTO:pvrThinkPadX61:rvnLENOVO:rn7675CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7675CTO
dmi.product.version: ThinkPad X61
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise
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https://bugs.launchpad.net/bugs/976998
Title:
An audio device is active 100.0% of the time: hwC0D0 Analog Devices
AD1984
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