External Mic Not Working on HP EliteDesk Desktop

[Mayur M Vegad]

My external mic (Ahuja UTP-30, Electret Condenser Unidirectional Microphone) has stopped working with Ubuntu 20.04 after I changed my machine to HP EliteDesk. I need to use it with MS-Teams for online meetings (lectures/lab sessions at my institute.) It is not detected with other applications as well, e.g., I tried with Audacity too.

Followings are some more details:

• It was working perfectly with the same OS (Ubuntu 20.04) with my old desktop (assembled core i-3) which had 6 audio i/o jacks at its back. I was using the Mic-in (Pink) port of it.
• New machine (HP EliteDesk) has two audio ports in front: (Microphone/headphone and Headphone) and two ports on rear side (Line-in audio and Line-out). I tried with both the input ports (front as well as rear) but have not been successful so far.
• I have dual boot machine and it is working perfectly with Windows-10, with both the input ports discussed above.

Regards,

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Thanks

Mayur