Update: I confirm that Raymond's solutin of installing the latest alsa driver from this comment https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1136556/comments/2 solved my probelm.
Thank You! -- 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/1056669 Title: [HP Pavilion dv7 Notebook PC, IDT 92HD81B1X5, Black Headphone Out, Front] No sound at all Status in “alsa-driver” package in Ubuntu: Confirmed Bug description: How do I disable auto-mute? I'm a ubuntu noob. Speakers work fine, but plugging in headphones = no audio. Take it out and speakers work fine again. Checked alsamixer, saw that the head phone jack was "muted" (MM) and 0. If I make it (00), and up the volume, the headphones work. Unplug headphones and plug back in, and it's muted once again (MM). ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: alsa-base 1.0.25+dfsg-0ubuntu2 ProcVersionSignature: Ubuntu 3.5.0-10.10-generic 3.5.1 Uname: Linux 3.5.0-10-generic x86_64 ApportVersion: 2.4-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: skymd 2009 F.... pulseaudio /dev/snd/pcmC0D0c: skymd 2009 F...m pulseaudio Date: Wed Sep 26 00:13:57 2012 PackageArchitecture: all ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Black Headphone Out, Front Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: No sound at all Title: [HP Pavilion dv7 Notebook PC, IDT 92HD81B1X5, Black Headphone Out, Front] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/21/2012 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: F.19 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 1800 dmi.board.vendor: Hewlett-Packard dmi.board.version: 10.59 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnHewlett-Packard:bvrF.19:bd05/21/2012:svnHewlett-Packard:pnHPPaviliondv7NotebookPC:pvr0690210000204620000620100:rvnHewlett-Packard:rn1800:rvr10.59:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.name: HP Pavilion dv7 Notebook PC dmi.product.version: 0690210000204620000620100 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1056669/+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