For ADV739x - ADV7391, in this case - what script configuration is required in ED or HD (not SD) to output color bars? The datasheet says in a couple places that it can be done. But the register information isn't to be found. The example on page 79 for test patterns in ED/HD suggests the programming required for a hatch pattern, and that one works! So we're close and don't have major configuration issues. Though we tried some experimentation based on sordid bits of info and guesses, we didn't yet succeed with color bars for ED.