audio.device already in use?

[amiadudeorwat]

Maybe it's Poseidon Popups allocating the audio device?  IIRC you can turn off the sound prompts in Poseidon, which may be what happening every boot if it is popping up with a detect on every boot.

[amiadudeorwat]

Try going into trident and under the popup config, clearing the connection sound and the disconnection sound and setting to only popup on error.