There are upsides to the “not a display” approach: it means the display isn’t being driven by the host, so it’s going to be consistent even when your system is

There are upsides to the “not a display” approach: it means the display isn’t being driven by the host, so it’s going to be consistent even when your system is under load. I’m sure that was the original rationale for putting in its own ARM chip. I feel like they could totally add a pass-through mode, flip a switch to make it a display for the system to drive.