The microphone continues working after I suspend / resume. So far, I haven't been able to find any pattern in when it stops working, although it's generally within a day of rebooting. Fortunately, I have a bluetooth headset that does work, so I'll use that instead since rebooting regularly is annoying.
> It's interesting that my similar work laptop, Intel T16 gen 3 has a > similar problem in Windows. System goes to sleep, audio devices die, > meaning the Realtek audio device, internal speaker and mic are just gone > until reboot. Wouldn't mind that but this condition also has the effect > that bluetooth headsets are headphones only, i.e. no microphone. > You might check if it's sleep that kills your microphone.