Originally Posted by JediMaster Matt
Quite probably as I suspect it's simply typical HDMI handshake gremlins thanks to EDID.
Fortunately, there's products on the market to mitigate it.
A few weeks back, and several more before that, I did some mucking around with my Toshiba A35 and my Denon 7200. Prior to the Denon's final firmware update, I had the A35 working pretty well directly connected to it, with some old cables I'd been using for quite some time that had always worked fine with an older receiver.
Then came the last firmware update for the 7200, and it was broke again (no video, just audio).
(More recently when I hooked up an Oppo 203, got the same thing (no video, just audio), which fairly quickly led me to think maybe there was a reason they both weren't working in a similar manner.)
So long story short, when I replaced the cable between the A35 and the 7200 with a certified premium cable there was a sign of life (there was noisy flickering video sometimes), but couldn't quite get it to work. But once I finally also changed the cable between the 7200 and the plasma to a certified premium cable to see if it would help with the 203, the A35 also started working all good again.
In summary, it seems like Denon(/Marantz) really wants you to use the best hdmi cables available, even with the oldest hdmi devices around. Shouldn't need the mitigating devices with reasonably current hardware and best cables if my experience is any indication. (Cheap monoprice certified premium cables in my case, so they don't have to cost much either.)
(The XA2 should behave pretty much the same, no?)