Code
mount -o remount,rw /flash
cat /sys/devices/platform/soc/d0100000.vpu/drm/card0/card0-HDMI-A-1/edid > /flash/edid.bin
SSH in and run ^ those commands, then shutdown, remove the SD card, and on a PC copy the edid.bin file and attach here so we can poke it.
There is almost zero linux codebase in common with CE so the comparison there nice to know but not technically helpful.