Originally Posted by Tornado Red
My set up is split like yours. HDMI will carry both audio and video from the source if both are available which they would be with the Oppo's 2 HDMI outputs. So the short answer is to just keep the volume turned off on your display if you want to use your AVR to control the audio.
This is incorrect. If your HDMI-2 connection is "powered off", then both audio and video will be output from HDMI-1. But if HDMI-2 is "powered on" and you have "Split A/V" set, then HDMI-1 will be video-only. HDMI-2 will be both audio and video.
If you have "Split A/V" set, according to page 53 of the PDF user manual:
2. Dual HDMI Output: Allows you to select the output mode when both HDMI Output ports are in
use. If only one HDMI Output is active, this selection will not apply.
Split A/V (recommended) – Use HDMI 1 OUT as the dedicated video output port and
HDMI 2 OUT as the dedicated audio output port. This setting will ensure the best possible
picture quality and the highest possible audio resolution.
Dual Display – Send digital audio and video signals to both HDMI Outputs simultaneously.
This setting is only recommended when two HDMI displays are required, since the surround
sound audio signal may be down-mixed to stereo and the original audio quality may be lost.
In Split A/V mode, HDMI 1 OUT has video only with no audio, but HDMI 2 OUT will have audio
and possibly video. This is because HDMI embeds audio into video data so there must always
be a video signal, even if it’s only a blank screen, to carry audio through.