I switched receivers from an Onkyo to a Denon 3313CI, and
the Denon does not seem to see my little Kodi device.
If the Kodi is connected to the receiver when the Kodi
powers up, I can see the very start of the sequence, but
then the display goes black. This happens for any HDMI input
to the Denon.

Connecting the Kodi directly to the TV works fine.

The Denon has no trouble with any of my other HDMI devices.
What could the problem be?
Thanks.