[Inspiron 7460, Realtek ALC3246, Black Headphone Out, Front] No sound at all

[Gabriela Arcifa Resende]

when i plug in headphones the system recognizes it, but the sound doesnt work

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-131.157-generic 4.4.134
Uname: Linux 4.4.0-131-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0c: gabi 1938 F...m pulseaudio
 /dev/snd/pcmC0D0p: gabi 1938 F...m pulseaudio
 /dev/snd/controlC0: gabi 1938 F.... pulseaudio
                      gabi 3377 F.... alsamixer
CurrentDesktop: Unity
Date: Mon Aug 13 10:47:54 2018
DistributionChannelDescriptor:
 # This is a distribution channel descriptor
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-xenial-amd64-20160624-2
InstallationDate: Installed on 2017-07-05 (403 days ago)
InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47
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/pcmC0D0c: gabi 1938 F...m pulseaudio
 /dev/snd/pcmC0D0p: gabi 1938 F...m pulseaudio
 /dev/snd/controlC0: gabi 1938 F.... pulseaudio
                      gabi 3377 F.... alsamixer
Symptom_Jack: Black Headphone Out, Front
Symptom_Type: No sound at all
Title: [Inspiron 7460, Realtek ALC3246, Black Headphone Out, Front] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/09/2017
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.1.2
dmi.board.name: 09WC1G
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.1.2:bd03/09/2017:svnDellInc.:pnInspiron7460:pvr:rvnDellInc.:rn09WC1G:rvrA01:cvnDellInc.:ct10:cvr:
dmi.product.name: Inspiron 7460
dmi.sys.vendor: Dell Inc.