Actualy for me the crackling happens on every audio when using HDMI output. Tried reinstalling pulse, adding tsched to the the pulse config nothing helped, basically the audio is not usable.
-- 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/1188406 Title: [Studio 1557, ATI R6xx HDMI, Digital Out, HDMI] crackling/static sound Status in “alsa-driver” package in Ubuntu: Confirmed Bug description: Problem has been happening for 2-3 weeks now, tried all diff combination of settings I can. Programs that make crackling/static sound when playing audio: Google Chrome, espeak in terminal, FCEUX NES Emulator. In google chrome i tested flash and HTML5, (thought it was maybe a flashe issue) Program that play correct sound with no static: Google Chromium VLC Speak test from sound settings Only happens on HDMI, computer speakers no. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-23.34-generic 3.8.11 Uname: Linux 3.8.0-23-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: tvbox 29270 F.... pulseaudio /dev/snd/controlC0: tvbox 29270 F.... pulseaudio Date: Thu Jun 6 17:51:54 2013 InstallationDate: Installed on 2013-03-01 (97 days ago) InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213) MarkForUpload: True PackageArchitecture: all ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:HDMI failed Symptom_Card: RV710/730 HDMI Audio [Radeon HD 4000 series] - HDA ATI HDMI Symptom_Jack: Digital Out, HDMI Symptom_Type: Underruns, dropouts, or "crackling" sound Title: [Studio 1557, ATI R6xx HDMI, Digital Out, HDMI] Underruns, dropouts or crackling sound UpgradeStatus: Upgraded to raring on 2013-05-16 (21 days ago) dmi.bios.date: 10/06/2009 dmi.bios.vendor: Dell Inc. dmi.bios.version: A02 dmi.board.name: 0KM426 dmi.board.vendor: Dell Inc. dmi.board.version: A02 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: A02 dmi.modalias: dmi:bvnDellInc.:bvrA02:bd10/06/2009:svnDellInc.:pnStudio1557:pvrA02:rvnDellInc.:rn0KM426:rvrA02:cvnDellInc.:ct8:cvrA02: dmi.product.name: Studio 1557 dmi.product.version: A02 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1188406/+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