Selected audio output device changes on its own
by GabiAPF from LinuxQuestions.org on (#5737Q)
I'm running Debian Buster (recently upgraded) and using Pulse Audio Volume Control.
I have headphones connected to my computer (listed as analog internal audio), and I can select them as the output device for an application in the Reproduction tab. But every few seconds - which may perhaps be related to the cord moving slightly? - the selected audio device changes to my USB microphone - which has speakers connected to it - and then, one or two seconds later, it changes back again.
This behavioue began after the upgrade, it did not happen when I was running Jessie. It is a problem, as the audio starts coming out of one device or the other alternatingly and a sign with an icon for the device shows up in the middle of the screen whenever it changes.
Is there a way to stop these changes and make my system stick to the device I have chosen?


I have headphones connected to my computer (listed as analog internal audio), and I can select them as the output device for an application in the Reproduction tab. But every few seconds - which may perhaps be related to the cord moving slightly? - the selected audio device changes to my USB microphone - which has speakers connected to it - and then, one or two seconds later, it changes back again.
This behavioue began after the upgrade, it did not happen when I was running Jessie. It is a problem, as the audio starts coming out of one device or the other alternatingly and a sign with an icon for the device shows up in the middle of the screen whenever it changes.
Is there a way to stop these changes and make my system stick to the device I have chosen?