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[Bug 1345096] [NEW] pulseaudio uses too much cpu for doing nothing


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pulseaudio uses varying amounts of cpu (8 - 25%) even when there is no sound being played at all.
This happens every  time I turn mu notebook on, but simply killing it solves the issue. That means it will respawn using much  more reasonable cpu (0.1%).
The sound does work fine all the time.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: pulseaudio 1:4.0-0ubuntu11
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic
Uname: Linux 3.13.0-32-generic i686
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: i386
 /dev/snd/controlC0:  ferraro    4943 F.... pulseaudio
 /dev/snd/pcmC0D0p:   ferraro    4943 F...m pulseaudio
CurrentDesktop: Unity
Date: Sat Jul 19 17:03:02 2014
ExecutablePath: /usr/bin/pulseaudio
InstallationDate: Installed on 2013-05-03 (442 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release i386 (20130424)
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to trusty on 2014-07-19 (0 days ago)
dmi.bios.date: 10/03/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.02
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 17F9
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 10.31
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.02:bd10/03/2011:svnHewlett-Packard:pnHPPaviliondv6NotebookPC:pvr0593110000204610000620100:rvnHewlett-Packard:rn17F9:rvr10.31:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP Pavilion dv6 Notebook PC
dmi.product.version: 0593110000204610000620100
dmi.sys.vendor: Hewlett-Packard

** Affects: skype (Ubuntu)
     Importance: Undecided
         Status: Triaged

** Tags: apport-bug i386 trusty
pulseaudio uses too much cpu for doing nothing
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