[, SigmaTel STAC9221D A2, Green Headphone Out, Front] Changed the sound output from analog output to digital output(S/PDIF) and it suddenly stopped

[Paul]

The green headphone out was working and I changed the sound output from analog output to digital output(S/PDIF) and it suddenly stopped and changing it back to Analog Output didn't restore the sound.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: pulseaudio 1:11.1-1ubuntu7.1
ProcVersionSignature: Ubuntu 4.15.0-42.45-generic 4.15.18
Uname: Linux 4.15.0-42-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CurrentDesktop: Budgie:GNOME
Date: Wed Dec 12 23:10:39 2018
InstallationDate: Installed on 2018-12-06 (7 days ago)
InstallationMedia: Ubuntu-Budgie 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725.1)
SourcePackage: pulseaudio
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel successful
Symptom_Card: Built-in Audio - HDA Intel
Symptom_Jack: Green Headphone Out, Front
Symptom_PulsePlaybackTest: PulseAudio playback test failed
Symptom_Type: No sound at all
Title: [, SigmaTel STAC9221D A2, Green Headphone Out, Front] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/02/2007
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BX97510J.86A.1487.2007.0902.1724
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: D975XBX
dmi.board.vendor: Intel Corporation
dmi.board.version: AAD27094-305
dmi.chassis.type: 2
dmi.modalias: dmi:bvnIntelCorp.:bvrBX97510J.86A.1487.2007.0902.1724:bd09/02/2007:svn:pn:pvr:rvnIntelCorporation:rnD975XBX:rvrAAD27094-305:cvn:ct2:cvr:

[Daniel van Vugt (vanvugt)]

Does rebooting successfully restore sound?

[Paul (pauleman6)]

I have tried rebooting multiple times after all the suggestions that I could find on this issue on the net. It still doesn't seem to work.

[Daniel van Vugt (vanvugt)]

Sound hardware sometimes remembers its state even if you switch between operating systems. So please also try turning the machine off for a few seconds and then on again.

[Launchpad Janitor (janitor)]

[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.]