Sound device missing (monitor)

[Douglas Silva]

GNOME isn't exposing the monitor audio device. It doesn't show up as an option to switch to in the Sound settings.

This is the device, from 'lspci':
> 03:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Navi 21/23 HDMI/DP Audio Controller

It's an LG ultrawide monitor connected via HDMI to an AMD Radeon RX 6600 graphics card.

I'm reporting it against the Ubuntu session because I cannot reproduce this on a different desktop or distribution. I've recently tried Kubuntu 22.10 and Fedora 37, and both worked as expected.

ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: ubuntu-session 43.0-1ubuntu2
ProcVersionSignature: Ubuntu 5.19.0-40.41-generic 5.19.17
Uname: Linux 5.19.0-40-generic x86_64
ApportVersion: 2.23.1-0ubuntu3.2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Wed Apr 19 15:24:31 2023
InstallationDate: Installed on 2023-04-17 (2 days ago)
InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Release amd64 (20221020)
PackageArchitecture: all
SourcePackage: gnome-session
UpgradeStatus: No upgrade log present (probably fresh install)

[Douglas Silva (o-alquimista)]

This shows what I see when I try to switch between audio output devices.

[Douglas Silva (o-alquimista)]

This is fixed in Ubuntu Lunar (23.04). After upgrading, I can no longer reproduce.

[Keith Lewis (thundre)]

This bug also hit me in early April, on Jammy (Ubuntu 22.04.2 LTS). Settings->Sound suddenly had only the S/PDIF option; HDMI/DisplayPort was gone, as well as the analog option.

Upgrading to Kinetic and then Lunar brought back HDMI/DisplayPort, which is the device I need. The analog line output is still missing, as are the analog mic and line inputs.

Just wanted to mention the bug affects the most recent LTS release, and even the Lunar is still missing the analog devices.