Max2Play Home 2016 (en) › Forums › General Questions on Hardware and Max2Play Versions › Video streaming to a beamer via a 2nd m2p raspberry pi HDMI port? › Reply To: Video streaming to a beamer via a 2nd m2p raspberry pi HDMI port?
Just to clarify, you need to connect one Pi via HDMI to the beamer AND the sound card on the same Pi to your speakers. Then, you can select the audio output for your sound card in Kodi and have the HDMI output be to the beamer. That should allow your setup to work with just one Raspberry Pi.