Thank you for reporting this bug to Ubuntu. Ubuntu 12.04 (precise) reached end-of-life on April 28, 2017.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. ** Changed in: pulseaudio (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1092348 Title: [OptiPlex 990, Realtek ALC269VB, Green Headphone Out, Front] Underruns, dropouts or crackling sound Status in pulseaudio package in Ubuntu: Incomplete Bug description: Without any audio playing, I hear a hum and crackling with headphones on. It doesn't matter if the headphones are plugged in the front or back. After recent updates, I've noticed a crackling and distortion while playing mp3's. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: alsa-base 1.0.25+dfsg-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-34.53-generic 3.2.33 Uname: Linux 3.2.0-34-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 ApportVersion: 2.0.1-0ubuntu15 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: e095620 1932 F.... pulseaudio /dev/snd/pcmC0D0p: e095620 1932 F...m pulseaudio /dev/snd/timer: e095620 1932 f.... pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xe1560000 irq 46' Mixer name : 'Realtek ALC269VB' Components : 'HDA:10ec0269,1028047e,00100100' Controls : 27 Simple ctrls : 15 Date: Wed Dec 19 15:46:39 2012 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MarkForUpload: True PackageArchitecture: all ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Green Headphone Out, Front Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: Underruns, dropouts, or "crackling" sound Title: [OptiPlex 990, Realtek ALC269VB, Green Headphone Out, Front] Underruns, dropouts or crackling sound UpgradeStatus: Upgraded to precise on 2012-09-11 (99 days ago) dmi.bios.date: 12/30/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A11 dmi.board.name: 0VNP2H dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA11:bd12/30/2011:svnDellInc.:pnOptiPlex990:pvr01:rvnDellInc.:rn0VNP2H:rvrA01:cvnDellInc.:ct3:cvr: dmi.product.name: OptiPlex 990 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1092348/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp

