Sound Output Device : Dummy Output

[Nils Erasmus]

Fresh install and there is no sound. The only option in Sound Output Device settings is `Dummy Output`. I attempted a fix described at https://askubuntu.com/a/1236100 which revealed different output devices, but still no sound.

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: alsa-base 1.0.25+dfsg-0ubuntu7
ProcVersionSignature: Ubuntu 6.5.0-13.13-generic 6.5.3
Uname: Linux 6.5.0-13-generic x86_64
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: nils 1388 F.... wireplumber
 /dev/snd/seq: nils 1378 F.... pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Thu Nov 30 21:49:16 2023
InstallationDate: Installed on 2023-11-30 (0 days ago)
InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
SourcePackage: alsa-driver
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/17/2023
dmi.bios.release: 0.1
dmi.bios.vendor: Apple Inc.
dmi.bios.version: 522.0.0.0.0
dmi.board.name: Mac-4B682C642B45593E
dmi.board.vendor: Apple Inc.
dmi.board.version: iMac18,1
dmi.chassis.type: 9
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-4B682C642B45593E
dmi.modalias: dmi:bvnAppleInc.:bvr522.0.0.0.0:bd08/17/2023:br0.1:svnAppleInc.:pniMac18,1:pvr1.0:rvnAppleInc.:rnMac-4B682C642B45593E:rvriMac18,1:cvnAppleInc.:ct9:cvrMac-4B682C642B45593E:sku:
dmi.product.family: iMac
dmi.product.name: iMac18,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2023-11-30T21:48:48.924029