Thank you for reporting this bug to Ubuntu. Ubuntu 13.04 (raring) reached end-of-life on January 27, 2014.
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: Confirmed => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1248405 Title: [DL-H61MXEL, Realtek ALC888, Green Line Out, Rear] Underruns, dropouts or crackling sound Status in pulseaudio package in Ubuntu: Incomplete Bug description: When the output volume is set near 100% and a sound is playing, volume level alternates too fast. Sometimes it goes to mute. I watched System Settings > Sound and found that sound output device is alternating between 'Analog Output -Built-in Audio' and 'Headphones - Built-in Audio'. The switching is too frequent and introduces glitches in output. By default output device is 'Analog Output - Built-in Audio'. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: pulseaudio 1:3.0-0ubuntu6 ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8 Uname: Linux 3.8.0-31-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: gokul 2613 F.... pulseaudio Date: Wed Nov 6 10:36:23 2013 InstallationDate: Installed on 2013-05-22 (167 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MarkForUpload: True SourcePackage: pulseaudio Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Green Line Out, Rear Symptom_PulsePlaybackTest: PulseAudio playback test failed Symptom_Type: Underruns, dropouts, or "crackling" sound Title: [DL-H61MXEL, Realtek ALC888, Green Line Out, Rear] Underruns, dropouts or crackling sound UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/16/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: A92DLP11 dmi.board.name: DL-H61MXEL dmi.board.vendor: DIGILITE dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA92DLP11:bd12/16/2011:svnDIGILITE:pnDL-H61MXEL:pvrTobefilledbyO.E.M.:rvnDIGILITE:rnDL-H61MXEL:rvr: dmi.product.name: DL-H61MXEL dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: DIGILITE To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1248405/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp