Public bug reported: 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 ** Affects: pulseaudio (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug raring -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1248405 Title: [DL-H61MXEL, Realtek ALC888, Green Line Out, Rear] Underruns, dropouts or crackling sound To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1248405/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs