The built in microphone of my laptop is not detected in linux mint 21.1 cinnamon kernel 5.15.0-71-generic. This is what the pulseaudio configuration page looks like. The input devices page is completely empty in both pulseaudio and sound settings
I've tried a pair of bluetooth earbuds and an external USB mic that are both detected and work. The built in microphone works in windows. I've searched online but found only fixes for other computer models, for example this guide for a similar model. Since it explicitly said that it's not for my model I didn't wanna risk it.
As far as I understand it's a bug that is fixed in kernel 6.1. I would prefer to stay on the current LTS and stable version. Is there any way I can fix this my self without upgrading? There are a couple of suggestions online but I really don't want to copy paste commands that do not apply 100% to my issue. Taking part in meetings is a pain this way and afaik next mint release won't be before august.
Any help appreciated, I'm more than happy to upload more material if useful.