I just upgraded to the Gateway with Portals and have everything running through a A/V Receiver with one HDMI running to the TV.
My new Portal does not give me audio when connected to the A/V receiver with HDMI. Only if I add an optical and reassign it.
I had no issues previously with the Motorola and have tried replacing cables, swapping portals, etc.
Does the portal output HDMI Audio to an AV receiver?