Public bug reported:
After kernel update sound interrupts
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-33.52-generic 3.2.31
Uname: Linux 3.2.0-33-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu14
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: amh 2002 F.... pulseaudio
/dev/snd/controlC0: amh 2002 F.... pulseaudio
/dev/snd/controlC1: amh 2002 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf7c00000 irq 43'
Mixer name : 'Realtek ALC269'
Components : 'HDA:10ec0269,144dc06a,00100004'
Controls : 19
Simple ctrls : 11
Card1.Amixer.info:
Card hw:1 'U5'/'VIA Technologies Inc. MAYA U5 at usb-0000:00:1a.0-1.2, full
speed'
Mixer name : 'USB Mixer'
Components : 'USB040d:3401'
Controls : 20
Simple ctrls : 10
Card2.Amixer.info:
Card hw:2 'NVidia'/'HDA NVidia at 0xf3080000 irq 16'
Mixer name : 'Nvidia GPU 0a HDMI/DP'
Components : 'HDA:10de000a,10de0101,00100100'
Controls : 24
Simple ctrls : 4
Date: Sun Oct 21 12:39:41 2012
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64
(20120823.1)
PackageArchitecture: all
ProcEnviron:
TERM=xterm
PATH=(custom, user)
LANG=pl_PL.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:U5 failed
Symptom_Card: High Definition Audio Controller - HDA NVidia
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [USB-Audio - MAYA U5, playback] Underruns, dropouts or crackling sound
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/05/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 08JA.M034.20100705.LDG
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: R780
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: 08JA
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr08JA.M034.20100705.LDG:bd07/05/2010:svnSAMSUNGELECTRONICSCO.,LTD.:pnR780:pvr08JA:rvnSAMSUNGELECTRONICSCO.,LTD.:rnR780:rvr08JA:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
dmi.product.name: R780
dmi.product.version: 08JA
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise running-unity third-party-packages
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https://bugs.launchpad.net/bugs/1069346
Title:
[USB-Audio - MAYA U5, playback] Underruns, dropouts or crackling sound
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