Public bug reported:
After upgrade from 19.10 to 20.04 (xubuntu) I've lost the sound on the
headphones.
The internal loud speakers works ok when the headphones are not plugged in.
More specifically:
If I open the pavucontrol without the headphones plugged in I see that is
correctly mentioning the output as Port: "Speakers (plugged-in)" and everything
works ok, I have sound from the speakers.
The moment I plug in the headphones, for a fraction of a second I can
hear sound on the headphones, and then the output port switches to
"headphones" which is the moment I lose the sound.
The fraction that I hear the sound is when the jack is half-inserted and
I get the sound on one channel only. When is fully inserted, the
computer detects it and makes the switch.
I've tried also in alsamixer all possibilities I could imagine, playing
with mute/unmute and gain of each channel, with no success
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: bnv 1312 F.... pulseaudio
bnv 21367 F.... alsamixer
/dev/snd/pcmC0D0c: bnv 1312 F...m pulseaudio
/dev/snd/pcmC0D0p: bnv 1312 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: XFCE
Date: Fri May 8 15:41:08 2020
InstallationDate: Installed on 2019-08-08 (274 days ago)
InstallationMedia: Xubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
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/controlC0: bnv 1312 F.... pulseaudio
bnv 21367 F.... alsamixer
/dev/snd/pcmC0D0c: bnv 1312 F...m pulseaudio
/dev/snd/pcmC0D0p: bnv 1312 F...m pulseaudio
Symptom_Jack: Black Headphone Out, Front
Symptom_Type: No sound at all
Title: [Latitude 7490, Realtek ALC3246, Black Headphone Out, Front] No sound at
all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/08/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.13.1
dmi.board.name: 0KP0FT
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.13.1:bd11/08/2019:svnDellInc.:pnLatitude7490:pvr:rvnDellInc.:rn0KP0FT:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Latitude
dmi.product.name: Latitude 7490
dmi.product.sku: 081C
dmi.sys.vendor: Dell Inc.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1877580
Title:
[Latitude 7490, Realtek ALC3246, Black Headphone Out, Front] No sound
at all
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