Sometimes, while on headphones, short and non pleasant bursts of noise, of around 1-2 s, can be heard on the headphones. These bursts appear randomly, usually some of them at the login screen and Unity loading, and when activating something in Unity (often launching a new program). Sometimes instead of the burst a shorter but still non proper click is heard.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: pulseaudio 1:6.0-0ubuntu6
Uname: Linux 4.1.4-040104-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: brtdra 1370 F.... pulseaudio
/dev/snd/controlC1: brtdra 1370 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Sep 17 21:41:58 2015
ExecutablePath: /usr/bin/pulseaudio
InstallationDate: Installed on 2015-08-22 (25 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
ProcEnviron:
LANGUAGE=en_HK:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_HK.UTF-8
SHELL=/bin/bash
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/19/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: N10ET36W (1.15 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20CMCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0K11826 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN10ET36W(1.15):bd06/19/2015:svnLENOVO:pn20CMCTO1WW:pvrThinkPadX250:rvnLENOVO:rn20CMCTO1WW:rvrSDK0K11826WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20CMCTO1WW
dmi.product.version: ThinkPad X250
dmi.sys.vendor: LENOVO
Status changed to 'Confirmed' because the bug affects multiple users.