Microphone card is using Profile output:analog-stereo
instead of output:analog-stereo+input:mono-fallback
Karte #1 Name: alsa_card.usb-0b0e_Jabra_SPEAK_510_USB_501AA5DC007F022000-00 Profile: input:mono-fallback: Mono-Eingabe (Ziele: 0, Quellen: 1, Priorität: 1, verfügbar: ja) output:analog-stereo: Analog Stereo-Ausgabe (Ziele: 1, Quellen: 0, Priorität: 6500, verfügbar: ja) output:analog-stereo+input:mono-fallback: Analog Stereo-Ausgabe + Mono-Eingabe (Ziele: 1, Quellen: 1, Priorität: 6501, verfügbar: ja) Aktives Profil: output:analog-stereo
To change card profile to use speaker output + microphone input
pactl set-card-profile alsa_card.usb-0b0e_Jabra_SPEAK_510_USB_501AA5DC007F022000-00 output:analog-stereo+input:mono-fallback
PulseAudio is using Logitech microphone as default-source for audio capture
set-default-source alsa_input.usb-Logitech_Zone_Vibe_125_2215MH00URA8-00.mono-fallback
But it might switch to using the Jabra microphone again when it is available
To check if default-source has changed
pactl get-default-source
To set Jabra microphone as default-source
pactl set-default-source alsa_input.usb-0b0e_Jabra_SPEAK_510_USB_501AA5DC007F022000-00.mono-fallback