[hdmkv]

Didn't as I assumed the .tar update would keep my existing settings. Thanks, it was off. enabled it and viola!... nice work @wrxtasy!!!

This one is with echo '422,12bit' > /sys/class/amhdmitx/amhdmitx0/attr


And this one is with echo '422,10bit' > /sys/class/amhdmitx/amhdmitx0/attr


So, both render equally well!