I tried another HDMI source (blu-ray DVD player) and it didn't work either.
I did a software update on my test generator and got some strange results (on another TV).
There is now a girl dancing in the test patterns. She dances across all the patterns coming thru the HDMI cable.
I knew there was something fishy about the software update. She finally blows a kiss, then disappears. After that, the generator appears to work normally.
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