I working out of this repo. online: GitHub - lcdwiki/LCD-show-ubuntu: 3.2" 3.5" 5.0" 7.0" TFT LCD Ubuntu driver for the Raspberry PI and PI 2 and PI 3
It is some sort of Ubuntu distro driver for a RPi but some of the ideas seem to have 64-bit arch available…
If you purchased one of these LCDs w/ the firmware/dtb source not working, okay. I am in the same boat. Anyway, https://www.amazon.com/dp/B0B1MK3SQ2?ref=ppx_yo2ov_dt_b_product_details&th=1 is the link to their supplies for HDMI LCDs.
There is some evidence that they can work w/ specific Distros and/or aarch64.
I opened an issue on github as
silver2row to see if anyone has gotten the 7C display to work so far.
P.S. So, until it is completed and working, I suggest not trying to get the BBAI-64 and these specific LCDs plug-and-play. I will try to dedicate some time to this cause.
I forgot to mention, I am using this cable: 3ft HDMI to Mini DisplayPort Cable 4K - HDMI & DVI Display Adapters | StarTech.com
If you have used this one, please send guidance!