Need some info about the speakers you are using.
What can I do to get to the root of this? Where is the 0h.1 of my 2.1? I've already installed the drivers again (in 2 or 3 different formats), both by normal uninstall and restart with device autodetection installing them from whatever's included on the PC, as well as downloading them from Asus and letting it's wizard do it's thing. In previous months I've messed with all sorts of things I didn't understand (registry, services.msc, windows updates) trying to solve some other non-sound issues. It also doesn't show up in the 'sound' >'configure' image, nor 'test'. Under 'audio Channels' there is only one option listed 'stereo', but this is a 2.1 (or 4.1? - I'm guessing 2.1 because its a laptop with 2 internals and an external sub). Other than that notification, it doesn't seem to be recognized by the system. There is no other sign of the subwoofer except for a Realtek notification which tells me it's been plugged in or unplugged. There is a small electronic click when you plug it in or restart the PC. The subwoofer is not being recognized by the system.