Good news. Full-fledged working images (20210827) of ArmbianTV for P2 and M2 are ready. All the equipment works in them and you can start and configure the system via an HDMI monitor and a keyboard/mouse.
M2
https://disk.yandex.ru/d/OBDO8BU2y1M6ug
https://users.armbian.com/balbes150/rk3566/
P2
https://disk.yandex.ru/d/neKXsYolKXgLzg
https://users.armbian.com/balbes150/rk3568/