How to choose Audio Device?

In most other programs i use, changing the Audio Device from the speakers to the Nvidia HDMI is pretty simple. You click on the device name box and your other devices are available as options so you just pick the one you want to use.

In RetroArch, when i click on “Audio Device” in the audio potions, it brings up a virtual keyboard where i’m supposed to type something. So i’m stuck there as i have no idea what i must type. Anyone know how to use this option in RetroArch?

Saw a few people asking the same thing in other forums, no answer has been given so far.