Microphone Through Front TRRS Jack Not Detected in Windows 10 Mac Pro Mid 2010

Yes, this has been an issue specific to Macs+Bootcamp for quite some time. You can try a DELL driver, but your other Apple-Specific Audio devices may not work, since they are tied to a specific PID/VID for drivers.

Do you have any unknown devices in Windows Device Manager?

W10 does not have official drivers for 2011 and older Macs. For your model, Brigadier, by default, will provide Boot Camp Support Software 5.1.5621.

TRRS headphones are problematic on Macs+Bootcamp. However, are the headphones plugged in when you reboot from macOS to Windows?

This typically indicates the driver not recognizing the hardware events.

Same problem here. Microphone works as a charm under Mojave, doesn't get recognized with Bootcamp/Win10.

I guess a different driver is needed for it to work as the default generic Realtek driver.

Anyone had any success with this?

When I disconnect the headphones, I get an alert notification saying that I disconnected a device from the front panel jack... when I plug it back in, it says that I connected a device to the front panel jack... with these words. But this is about the headphones part, not the microphone, which should also be detected.

Yeah, well I'm not sure the driver Bootcamp installs/offers is the latest certified anyway as it doesn't take into account that you could have a front panel microphone in conjunction with the headphones... I'm sure PC laptops all offer this (I had a DELL at work that also had a TRRS jack and it was working fine)...

On a 2018 rMBP, the Device Manager shows this. The Mac uses the new Apple T2 controller.

If you disconnect the headphones when booted in Windows, do you hear audio from the internal speakers?

I know. Any idea about the solution? I'm guessing a different driver would be needed, but which? where from?

The problem with different (uncertified) drivers is that they can cause other issues.