Hi Omer, The link Raymond posted in comment #12 was from someone having the same problem as you. He also had a home-built computer, and I assume you do too. Anyway, for this person it turned out to be a hardware problem:
the HDA front panel connector was not correctly connected to the motherboard. We'd like to see if the same applies to you, so please open your computer up, try disconnecting the HDA front panel cable. Now start your computer - the problem should disappear (but the front panel audio won't work either, naturally). Try connecting it back again and double check that you connect it correctly. Start your computer and test again. Thanks! ** Changed in: alsa-driver (Ubuntu) Status: Confirmed => Incomplete -- 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/1213769 Title: [ASUS P8Z68-V PRO, Realtek ALC892, Green Line Out, Rear] Popping sound or crackle every few seconds while playing audio Status in “alsa-driver” package in Ubuntu: Incomplete Bug description: Recent regression. Options snd-hda-intel position_fix=2 makes the pop sound a little softer, but does not eliminate it. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.11.0-2.5-generic 3.11.0-rc5 Uname: Linux 3.11.0-2-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.12-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: omer 3421 F.... pulseaudio /dev/snd/controlC1: omer 3421 F.... pulseaudio /dev/snd/controlC0: omer 3421 F.... pulseaudio /dev/snd/pcmC0D0p: omer 3421 F...m pulseaudio Date: Sun Aug 18 23:26:33 2013 InstallationDate: Installed on 2013-07-05 (44 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130704) MarkForUpload: True PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Green Line Out, Rear Symptom_Type: Underruns, dropouts, or "crackling" sound Title: [System Product Name, Realtek ALC892, Green Line Out, Rear] Underruns, dropouts or crackling sound UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/09/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0501 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P8Z68-V PRO dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0501:bd05/09/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8Z68-VPRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer mtime.conffile..etc.modprobe.d.alsa.base.conf: 2013-08-18T23:23:04.428117 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1213769/+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