do you mean the headphone jack control remain true even when the headphone is unplugged?
amixer -c0 contents -- 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/1080282 Title: [System Product Name, VIA VT1708S, Green Line Out, Rear] No sound at all Status in “alsa-driver” package in Ubuntu: New Bug description: No sound at all unless I select "Independent HP ON". This indicates that something is muting the line out because it believes headphones are connected when they are in fact not connected. There seems to be several similar bugs but I cannot say for sure if they are the same issue. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: alsa-base 1.0.25+dfsg-0ubuntu3 ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7 Uname: Linux 3.5.0-18-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC3: al 2025 F.... pulseaudio /dev/snd/controlC1: al 2025 F.... pulseaudio /dev/snd/controlC0: al 2025 F.... pulseaudio al 22129 F.... alsamixer Date: Sun Nov 18 09:17:22 2012 InstallationDate: Installed on 2012-11-08 (9 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MarkForUpload: True PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:SB failed Symptom_Card: Built-in Audio - HDA ATI SB Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC3: al 2025 F.... pulseaudio /dev/snd/controlC1: al 2025 F.... pulseaudio /dev/snd/controlC0: al 2025 F.... pulseaudio al 22129 F.... alsamixer Symptom_Jack: Green Line Out, Rear Symptom_Type: No sound at all Title: [System Product Name, VIA VT1708S, Green Line Out, Rear] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/25/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0704 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M4A79XTD EVO dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0X dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0704:bd11/25/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A79XTDEVO:rvrRevX.0X:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1080282/+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