ok - good news - I was able to repair my 32-bit 18.04.4 install on the *same* exact hardware and confirmed I am able to see (1) Microphone and (2) bars moving (see screenshot)
NOTE: my Unity desktop is corrupt on my 32-bit instance so what you are seeing is Volume Control from XCFE.
again, I want to be clear that this bug report is in regards to my *64-bit* Ubuntu install not listing two inputs (microphone and line in) in Settings.
the purpose of this followup is to demonstrate it is not a hardware issue. my 32-bit Ubuntu instance on the same hardware is able to access the internal microphone.
ok - good news - I was able to repair my 32-bit 18.04.4 install on the *same* exact hardware and confirmed I am able to see (1) Microphone and (2) bars moving (see screenshot)
NOTE: my Unity desktop is corrupt on my 32-bit instance so what you are seeing is Volume Control from XCFE.
again, I want to be clear that this bug report is in regards to my *64-bit* Ubuntu install not listing two inputs (microphone and line in) in Settings.
the purpose of this followup is to demonstrate it is not a hardware issue. my 32-bit Ubuntu instance on the same hardware is able to access the internal microphone.