The underlying sensors are still active. I typically just keep my Logitech G430 headphones -- with the physical mute switch active -- plugged into my computer a

The underlying sensors are still active. I typically just keep my Logitech G430 headphones -- with the physical mute switch active -- plugged into my computer at all times because the system uses that for sound capture... except Siri/Cortana/Ubuntu One hear nothing when those are plugged in.