[Audio] - If the "Output Device" or "Input Device" is modified and "Default" is not the current selection, it shows "(auto)" as the default device name.

[ZereoX]

Your system information

• Steam client version (build number or date): 1731433018 (Stable) / 1730253536 (Beta)
• Distribution (e.g. Ubuntu): SteamOS 3.6.20 / 3.7.0 (Deck) and Manjaro w/ Gnome 46 (Desktop)
• Opted into Steam client beta?: Issue is present on both Stable and Beta
• Have you checked for system updates?: Yes
• Steam Logs: steam-logs.tar.gz
• GPU: AMD Van Gogh RDNA 2.0 (Steam Deck) and RX 7800XT (Desktop)

Please describe your issue in as much detail as possible:

If the Source or Sink is changed (i.e. switching Input / Output device) or updated (i.e. changing the volume) and Default is not the current selection, the entry will change from Default () to Default (auto).

Default (auto) :x:

Video

Switching Input / Output

https://github.com/user-attachments/assets/53640937-3dd2-42b0-8857-ec68c259b489

Adjusting Volume

https://github.com/user-attachments/assets/817a2406-d79a-40d4-a74a-9c85f771c7b1

Steps for reproducing this issue:

1. Navigate to Steam > Settings > Audio.
2. Set Output Device to Speakers.
3. Re-open the Output Device dropdown menu.

Reproduction Rate: 5/5

Affected Platforms

• LCD / Jupiter: Yes
• OLED / Galileo: Yes
• Desktop Deck-like session (gamescope -e -- steam -gamepadui -steamdeck): Yes
• Desktop: Yes, in Big Picture Mode

Reproduction Rate: 5/5

Actual result

• The device name indicated on the Default Input and Output device entry switches to "(auto)".

Expected result

• The device name on the Default entries should always correctly reflect the default device.

Notes

• The Default entry's device name is correctly updated once it is reselected.