Linux mint doesn't change input to USB headset though changes output fine

[Justis]

Hi,

I have this sort of setup - USB headset (Beyerdynamic MMX2) is connected to my monitor (Dell P2314H) via USB. The monitor is then connected via HDMI and USB to my laptop (Dell Latitude E5550). The additional connection (the USB one) from monitor to laptop is because of monitor has USB hub function - I have connected my mouse (Logitech m325) usb bluetooth dongle to it and also my headset. The mouse functions fine, I even get the battery status - so works the same as connected directly.

Routine is this - come to my workstation, connect hdmi and usb from monitor to the laptop and then power on the laptop. So when turn on youtube after this - the sound is coming from headphones as expected, but if try some sound recording via audacity or any other software which requires audio input - the input is recorded from laptop rather than from headset microphone. If I open sound applet (using cinnamon), under input I can see the headset microphone, if I select/highlight it - the input doesn't change - it's still coming from laptop microphone. The only solution I found working is open PulseAudio Volume Control application and under Input Devices I have to set headset microphone as 'fallback device' - only then input is coming from heaset microphone.

I consider this a bug. I expect Linux Mint to change input the same way as it changes the output to headset if such is connected.

Linux Mint 18 Sarah, Cinnamon 64-bit

[Joao Loureiro (joaofl)]

It happens similarly here, but not exactly the same way.

I have a bluetooth headphone, which gets connected fine, and the sound gets automatically routed to it as expected as it gets connected. But if I try to change the volume from the panel menu, it changes the volume of the built-in output/speakers and not for headphones (not affecting the volume at all). To do so, I have to open "sound settings" and highlight the headphone output to get it "spotted" and get the volume control working for it.