** Description changed: Speakers and HDMI sound work fine, only headphones not working. I went through all of the steps on https://help.ubuntu.com/community/SoundTroubleshootingProcedure https://help.ubuntu.com/community/SoundTroubleshooting and https://wiki.ubuntu.com/DebuggingSoundProblems and submitted this report with ubuntu-bug -s audio + + Some possibly relevant information: This installation of Ubuntu was + originally installed on a Dell Inspiron 15, but I cloned the partition + onto an SSD that I installed on the Latitude 6420. It is the Latitude + that is affected, the headphones work fine on the Inspiron. Let me know if any more information is required. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.13.0-32.35~16.04.1-generic 4.13.13 Uname: Linux 4.13.0-32-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/pcmC0D0p: rviertel 2881 F...m pulseaudio - /dev/snd/controlC0: rviertel 2881 F.... pulseaudio - rviertel 4589 F.... alsamixer + USER PID ACCESS COMMAND + /dev/snd/pcmC0D0p: rviertel 2881 F...m pulseaudio + /dev/snd/controlC0: rviertel 2881 F.... pulseaudio + rviertel 4589 F.... alsamixer CurrentDesktop: Unity Date: Wed Jan 31 12:22:17 2018 InstallationDate: Installed on 2015-04-27 (1009 days ago) InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) 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_DevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/pcmC0D0p: rviertel 2881 F...m pulseaudio - /dev/snd/controlC0: rviertel 2881 F.... pulseaudio - rviertel 4589 F.... alsamixer - /dev/snd/seq: timidity 1191 F.... timidity + USER PID ACCESS COMMAND + /dev/snd/pcmC0D0p: rviertel 2881 F...m pulseaudio + /dev/snd/controlC0: rviertel 2881 F.... pulseaudio + rviertel 4589 F.... alsamixer + /dev/snd/seq: timidity 1191 F.... timidity Symptom_Jack: Black Headphone Out, Left Symptom_Type: No sound at all Title: [Latitude E6420, IDT 92HD90BXX, Black Headphone Out, Left] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/11/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.name: 0K0DNP dmi.board.vendor: Dell Inc. dmi.board.version: A02 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA06:bd07/11/2011:svnDellInc.:pnLatitudeE6420:pvr01:rvnDellInc.:rn0K0DNP:rvrA02:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6420 dmi.product.version: 01 dmi.sys.vendor: Dell Inc.
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