Asus AIO PC ET2700inks sound problem

Hello everybody,

I want this pc to run as it should, but some options are missing.

I managed to run the dvb-t (I’ll write here a topic about it), but now I’ve got a problem with the sound. This computer have got an external subwoofer with a dedicated stack.

I tried everything to debug (I found the subwoofer is connected on pin 0x16) but I realize today that Alsa doesn’t recognize the intel HD Audio as it should be, it says codec is ALC887-VD and windows driver for this PC at Asus is for ALC663.

Have you got an idea before I try to install Realtek drivers ? (I know it’s not fine).

Some supplementary information there :