To use my Raspberry Pi Zero as a bluetooth receiver and speaker, I used this simple install, requiring low resources :
Everything works well, sound through HDMI is OK.
But when I use the procedure https://www.hifiberry.com/docs/software/configuring-linux-3-18-x/ , the bluetooth raspi zero is no longer recognized as an audio device (only computer device....) and connection is impossible.
The check with aplay -l answer exactly as stated in your configuring page ("test it")
As I am not able to have an idea where it broke out, I don't know how to (try to) fix it.
Any idea? Any experience?
Thanks in advance.