I'm having a problem with my onboard Intel soundcard:
The audio works fine, but after a few minutes (5-10), the audio suddenly starts to crackle, like someone's moving a broken audio cable. The volume-meter in the GUI (xfce), as well as the volume-meters in alsamixer suddenly start toggling mute/unmute like crazy, and the levels also keep changing. Like if some weird ghost-user would be hammering the keyboard shortcuts in alsamixer... ;)
After some minutes, the sound returns in the same fashion: crackles, stuttering and the volume-meter GUI going crazy.
Does anyone else have this problem?
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: alsa-base 1.0.24+dfsg-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17
Uname: Linux 3.0.0-16-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf7220000 irq 53'
Mixer name : 'Realtek ALC892'
Components : 'HDA:10ec0892,80862002,00100302'
Controls : 33
Simple ctrls : 19
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xf7080000 irq 17'
Mixer name : 'Nvidia GPU 1c HDMI/DP'
Components : 'HDA:10de001c,10b00401,00100100'
Controls : 4
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Date: Mon Mar 12 19:12:52 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
PackageArchitecture: all
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Internal Audio - HDA Intel PCH
Symptom_Jack: Green Line Out, Rear
Symptom_Type: Sound works for a while, then breaks
Title: [, Realtek ALC892, Green Line Out, Rear] fails after a while
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/23/2011
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BLH6710H.86A.0119.2011.0523.1030
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DH67BL
dmi.board.vendor: Intel Corporation
dmi.board.version: AAG10189-208
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrBLH6710H.86A.0119.2011.0523.1030:bd05/23/2011:svn:pn:pvr:rvnIntelCorporation:rnDH67BL:rvrAAG10189-208:cvn:ct3:cvr:
Status changed to 'Confirmed' because the bug affects multiple users.