Public bug reported:
I just upgraded to Quantal but I had the same issue on precise pandolin.
Sound randomly stutters. Sometimes it takes 5 minutes to happen
sometimes it will happen twice in a 10 second interval. I have version
1.0.25-3ubuntu3 of alsa. I tried the workarounds outlined in
https://wiki.ubuntu.com/Audio/PositionReporting hence my modified alsa
file.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: alsa-base 1.0.25+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: carlos 2308 F.... xfce4-volumed
carlos 2314 F.... pulseaudio
/dev/snd/pcmC0D0p: carlos 2314 F...m pulseaudio
Date: Sun Oct 21 10:15:47 2012
InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
PackageArchitecture: all
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: [To Be Filled By O.E.M., Realtek ALC898, Green Headphone Out, Front]
Underruns, dropouts or crackling sound
UpgradeStatus: Upgraded to quantal on 2012-10-21 (0 days ago)
dmi.bios.date: 09/13/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P2.20
dmi.board.name: Z77 Extreme4
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP2.20:bd09/13/2012:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ77Extreme4:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2012-10-20T09:41:41.486517
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug quantal
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https://bugs.launchpad.net/bugs/1069331
Title:
[To Be Filled By O.E.M., Realtek ALC898, Green Headphone Out, Front]
Underruns, dropouts or crackling sound
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