FriendlyELEC-Forum

Does anybody know how to force the HDMI-IN to NV12?

with this command I can force 422 but not 420

v4l2-ctl --get-edid > edid.txt
v4l2-ctl --set-edid file=edid.txt,format=hex,ycbcr422

any ideas?

Nobody has this problem?

I think it is a hardware-related thing, you can't change to nv12 if the hardware you are connecting from does not support it.
For example, grabbing video from a second board HDMI 1920x1080(out) to HDMI (in) only supports GBR, but grabbing video from my 8K TV set i can have NV12.