Audio Playback problem - Speakers only work if Headphones are also plugged in

[brian mullan]

Ubuntu 18.04

Linux dadspc 4.15.0-44-generic #47-Ubuntu SMP Mon Jan 14 11:26:59 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

pulseaudio v 11.1

$ cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version k4.15.0-44-generic.

Audio has been working fine until this morning when "some" update occurred on my Ubuntu desktop system.

I found that I was NOT getting any audio out of my speakers.

I also found in SOUND SETTINGS that for OUTPUT I only had listed:

Digital Output (S/PDIF) - Built-in Audio"
Headphones - Built-in audio

Next, I plugged in my headphones to my Desktop and when I did that:

I started hearing Audio out of my Speakers AND in my Headphones !

AND... in SOUND SETTINGS

Line Out - Built-in Audio appeared !

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.15.0-44.47-generic 4.15.18
Uname: Linux 4.15.0-44-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: bmullan 2599 F.... pulseaudio
 /dev/snd/pcmC0D0c: bmullan 2599 F...m pulseaudio
 /dev/snd/pcmC0D0p: bmullan 2599 F...m pulseaudio
 /dev/snd/controlC0: bmullan 2599 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Wed Jan 30 09:52:10 2019
InstallationDate: Installed on 2018-11-06 (84 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:SB failed
Symptom_Card: HDA NVidia - HDA NVidia
Symptom_Type: None of the above
Title: [HDA-Intel - HDA ATI SB, playback] Playback problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/04/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2901
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: SABERTOOTH 990FX R2.0
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2901:bd05/04/2016:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnSABERTOOTH990FXR2.0:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: To be filled by O.E.M.
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: To be filled by O.E.M.