Is the receiver set correctly. It may be doing this.
Did you also turn on the DSP? You need to check the box.The video should change automatically. What is your setup?
Not sure exactly what you mean by "setup" but I think this is what you mean: I have a 2015 Mac Mini running the latest OS X connected via HDMI to an
Emotiva XMC-1. Desktop resolution is set to 1080p/60Hz and output device in the sound control panel is set to HDMI.
One point of reference is that I currently run Plex on the Mac Mini and it has no problem changing the video resolution properly. Frankly, I'm happy with Plex, but I'm considering migrating to JRiver for two reasons: main reason is that I'd like to try running Acourate filters, and the second is that it would get me away from having to use a different program for music. I currently use Audirvana for music.
I may not have checked the box on DSP, but I think I did. I checked the "Output Format" box in the DSP Studio window. Is there another box to check?
As far as receiver setup goes, it automatically adjusts to whatever audio signal it gets. I'm confident it is set up correctly.
I should also probably mention that I tried changing to send the audio as bitstream from JRiver and that didn't work, either. Plex works either way - I can send LPCM or bitstream without problems. So that tells me that there isn't an inherent problem with the Mac or the receiver.
I appreciate your help.