HDMI audio not availible on HA OS

[Antiheld86]

Describe the issue you are experiencing

HDMI digital audio output device is not available on HA OS on RaspberryPi4. I also tried a fresh install of HA OS but the device didn't show up. For reference I installed a HA Supervised instance on Debian and there the HDMI output was available from the start. So I can rule out a hardware or cable issue.

I do get a video output on the HDMI port with the HA OS.

What operating system image do you use?

rpi4-64 (Raspberry Pi 4/400 64-bit OS)

What version of Home Assistant Operating System is installed?

14.1

Did the problem occur after upgrading the Operating System?

No

Hardware details

RaspberryPi 4 4GB connected to A/V Reciever

Steps to reproduce the issue

1. Install Home Assistant OS
2. look for the Build-In HDMI digital audio
3. don't find it
   ...

Anything in the Supervisor logs that might be useful for us?

Nothing to show regarding the issue

Anything in the Host logs that might be useful for us?

Nothing to show regarding the issue

System information

System Information

version	core-2025.1.1
installation_type	Home Assistant OS
dev	false
hassio	true
docker	true
user	root
virtualenv	false
python_version	3.13.1
os_name	Linux
os_version	6.6.62-haos-raspi
arch	aarch64
timezone	Europe/Berlin
config_dir	/config

Home Assistant Community Store

GitHub API	ok
GitHub Content	ok
GitHub Web	ok
HACS Data	ok
GitHub API Calls Remaining	4994
Installed Version	2.0.2
Stage	running
Available Repositories	1498
Downloaded Repositories	11

Home Assistant Cloud

logged_in	false
can_reach_cert_server	ok
can_reach_cloud_auth	ok
can_reach_cloud	ok

Home Assistant Supervisor

host_os	Home Assistant OS 14.1
update_channel	stable
supervisor_version	supervisor-2024.12.3
agent_version	1.6.0
docker_version	27.2.0
disk_total	57.8 GB
disk_used	9.3 GB
healthy	true
supported	true
host_connectivity	true
supervisor_connectivity	true
ntp_synchronized	true
virtualization
board	rpi4-64
supervisor_api	ok
version_api	ok
installed_addons	File editor (5.8.0), Node-RED (19.0.0), Mosquitto broker (6.4.1), Zigbee2MQTT (2.0.0-1), TasmoAdmin (0.31.2), RaspberryMatic CCU (3.79.6.20241122), Music Assistant Server (2.3.5)

Dashboards

dashboards	3
resources	4
views	2
mode	storage

Recorder

oldest_recorder_run	19. Dezember 2024 um 20:08
current_recorder_run	7. Januar 2025 um 12:19
estimated_db_size	155.38 MiB
database_engine	sqlite
database_version	3.47.1

Additional information

➜ ~ ha audio info
audio:
application: []
card:

• driver: module-alsa-card.c
  index: 0
  name: alsa_card.platform-bcm2835_audio
  profiles:
  • active: true
    description: Stereo Output
    name: output:stereo-fallback
  • active: false
    description: "Off"
    name: "off"
• driver: module-alsa-card.c
  index: 1
  name: alsa_card.platform-bcm2835_audio.2
  profiles:
  • active: true
    description: Stereo Output
    name: output:stereo-fallback
  • active: false
    description: "Off"
    name: "off"
    input: []
    output:
• applications: []
  card: 0
  default: false
  description: Built-in Audio Stereo
  index: 0
  mute: false
  name: alsa_output.platform-bcm2835_audio.stereo-fallback
  volume: 0.857696533203125
• applications: []
  card: 1
  default: true
  description: Built-in Audio Stereo
  index: 1
  mute: false
  name: alsa_output.platform-bcm2835_audio.stereo-fallback.2
  volume: 0.857696533203125
  host: 172.30.32.4
  update_available: false
  version: 2023.12.0
  version_latest: 2023.12.0

[Antiheld86]

I just found this old thread where I found out that one of the “Build-In Audio Stereo” devices is the HDMI output. So this is more about changing the title of the device.