Thanks for the update. Disappointing that the board was broken but great to hear that the software is working OK with this monitor. Like I said, although the Android image is pretty fussy, I was expecting yours to work based on the specs…
PS
It might be interesting to try the “bad” board with the debian image. The debian image uses an entirely different display stack and, because it supports many more video modes, it might be able to fallback to something simply if communication with the monitor isn’t working right.