I upgraded my Mac Mini to Lion.
When I go to the sound output, I still have two options:
* Headphones (Headphone port)
* marantz-AVR (HDMI)
When I select the Marantz, it highlights in blue momentarily and then slides back to Headphones. It does not stay on the Marantz.
I've restarted both units, unplugged cables, and the same.
What do I do now?
And, yes, everything worked perfectly just before my Lion upgrade.
After a visit to the Genius Bar and a return call, I have a solution (I hope).
First, he said the sound source is not selectable if something is plugged into the headphones--it just goes to the headphones. He said it should not have worked before the Lion upgrade either. But that's neither here nor there, because it does not work now even though it worked before.
He said to get "iMic" which plugs into a usb port and has a headphone output. This becomes a selectable source.
I only have one usb open, on the keyboard, but he says it is a low power device, so it should work just fine.
I'll be back here if it doesn't work. If it does work, consider it solved.