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
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https://bugs.launchpad.net/bugs/1248405
Title:
[DL-H61MXEL, Realtek ALC888, Green Line Out, Rear] Underruns, dropouts
or crackling sound
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