- A 1x2 HDMI splitter;
- An HDMI LCD monitor, and;
- Every HDMI input (but not output) on my receiver.
That sounds unlikely, doesn't it? It does. It really does. But testing against other devices seems to prove this to be true. It happened when I had shut down my iMac to move some cables around, then turned it back on.
I'm guessing that the Mac's already-known-to-be-haunted video card decided to say HEY GUYS HOW ARE YOU, NICE DAY FOR SOME VOLTAGE ISN'T IT?
I already bought a new Mac. Now I get to buy a new everything else. Hooray!