You have to find out your onboard audio still work with jack detection and analog back at which version of alsa driver/kernel by boot from live cd
in theory, you lost the automute feature when jack detection of hp is not functioning but the aggressive power saving use jack detection to power down the widgets in unused path this may mean analog loopback only function when some appplication open both playback and capture stream -- 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/1540372 Title: [Intel DP35DP, SigmaTel STAC9271D, Green Speaker, Rear] Underruns, dropouts or crackling sound Status in alsa-driver package in Ubuntu: Incomplete Bug description: I cant record or play on my sound card ubuntu 14.04.1 Alsa is detecting the sound card **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC9271D Analog [STAC9271D Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 1: STAC9271D Digital [STAC9271D Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 but PulseAudio is not detecting the card attached the log file Thank you ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.19.0-47.53~14.04.1-generic 3.19.8-ckt10 Uname: Linux 3.19.0-47-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: tuned 1851 F.... pulseaudio CurrentDesktop: Unity Date: Mon Feb 1 15:09:35 2016 InstallationDate: Installed on 2015-10-26 (98 days ago) InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel failed Symptom_Card: Built-in Audio - HDA Intel Symptom_Jack: Green Speaker, Rear Symptom_Type: Underruns, dropouts, or "crackling" sound Title: [, SigmaTel STAC9271D, Green Speaker, Rear] Underruns, dropouts or crackling sound UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/02/2007 dmi.bios.vendor: Intel Corp. dmi.bios.version: DPP3510J.86A.0293.2007.1002.1519 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: DP35DP dmi.board.vendor: Intel Corporation dmi.board.version: AAD81073-207 dmi.chassis.type: 2 dmi.modalias: dmi:bvnIntelCorp.:bvrDPP3510J.86A.0293.2007.1002.1519:bd10/02/2007:svn:pn:pvr:rvnIntelCorporation:rnDP35DP:rvrAAD81073-207:cvn:ct2:cvr: mtime.conffile..etc.modprobe.d.alsa.base.conf: 2016-01-29T17:09:52.179523 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1540372/+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
