I think the screen driver has failed or what ever in the hub produces
the video. Sound is OK, but the Hub is no longer recognized by the Home
app after a reset, so with out a visual display (1st generation type)
this cannot happen.
No, reset did not change the condition of the hub, the screen has a
white line down the R/H side and a greenish hue in the center, so it
looks like the display has died.