Originally Posted by Mark Fontana
Maybe it's some sort of periodic HDCP handshake tripping things up?
Hi Mark & merry Christmas,
Hmmm, interesting. I looked for some HDMI doc that might address anything similar. I found this troubleshooting information in a document at hdmi.org:
"Doing things too fast can lead to blinking video. When your HDMI transmitter drives an HDMI
receiver, always mute before changing signal timing and un-mute afterwards. Allow the HDMI
receiver some time to detect mute and process the timing change before you remove mute. DVI
sources must cease transmission and re-authenticate only after signal timing stabilizes and the
receiver has had time to recover. The HDCP circuits in most sinks require stable timing in order
to function properly."
The document is geared for people designing hardware. I'm not sure how one would mute video. That could explain why switching to another HDMI input and then back would fix things.