Thank you Colin. The sound is crackling out of VLC, Quodlibet and other applications. That makes me think that the bug is not application specific in my case. Although the posting is for VLC, it's the most comprehensive source I have found specifically for the VIA VT1708S. I have tried the options snd-hda-intel position_fix=1 and =2, to no avail. I have also tried both plus the load-module module-udev-detect tsched=0 in /etc/pulse/default.pa, also to no avail. In short, I am desperate! Any idea what can I do to kill these annoying subsecond sound noches? Many thanks.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1024702 Title: [1002:4383 + VIA VT1708S] Crackling sound when using vlc Status in “alsa-driver” package in Ubuntu: Confirmed Bug description: Crackling on sound when using vlc on ubuntu 12.04. As suggested in https://wiki.ubuntu.com/Audio/PositionReporting I tried in /etc/modprobe.d/alsa-base.conf setting options snd-hda-intel position_fix=1 which appeared to have no effect options snd-hda-intel position_fix=2 which stopped the crackling but the sound was then broken up into sub-second chunks with gaps between finally in /etc/pulse/default.pa load-module module-udev-detect tsched=0 fixed the problem. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: alsa-base 1.0.25+dfsg-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-26.41-generic-pae 3.2.19 Uname: Linux 3.2.0-26-generic-pae i686 NonfreeKernelModules: fglrx AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu8 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: SB [HDA ATI SB], device 0: VT1708S Analog [VT1708S Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: colinl 1892 F.... pulseaudio Card0.Amixer.info: Card hw:0 'SB'/'HDA ATI SB at 0xfe8f4000 irq 16' Mixer name : 'VIA VT1708S' Components : 'HDA:11060397,18490397,00100000' Controls : 38 Simple ctrls : 17 Date: Sat Jul 14 13:39:25 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:SB successful Symptom_Card: Built-in Audio - HDA ATI SB Symptom_Jack: Green Line Out, Rear Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: Underruns, dropouts, or "crackling" sound Title: [To Be Filled By O.E.M., VIA VT1708S, Green Line Out, Rear] Underruns, dropouts or crackling sound UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/21/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.00 dmi.board.name: A790GXH/128M 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.:bvrP1.00:bd01/21/2009:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnA790GXH/128M: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. modified.conffile..etc.modprobe.d.alsa.base.conf: [modified] mtime.conffile..etc.modprobe.d.alsa.base.conf: 2012-07-14T13:26:41.369257 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1024702/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
