Nixos - HD Audio Controller Starship/Matisse multisound

With me the following sound card is displayed under nixos:

“HD Audio Controller Starship/Matisse”

unfortunately, he only supports stereo at the moment. Is there a way to enable 7.1 channel support?

I use Gnome.


Did you find a solution to this?
I’m in the same boat (I can only use Digital Stereo (IC958) Output for Starship/Matisse HD Audio Controller)