So I turned everything off last night & this morning turned everything back on. After letting the the panel warm up for a couple of hours the 5% error is back.
I have tried turning on YCbCr 4:2:2 & it is still the same result.
So I hooked up my old Sony BDP-S5500 blu-ray player & took the 5% measurement again & I get the same reading that I got from my Panasonic blu-ray player.
So both blu-ray players are outputting the same so I am going to say that the output from FireTV is at fault.
I have an Nvidia Shield TV so I loaded MobileForge onto it & took the 21 point grayscale again & all seems good to me:
So it appears that either my FireTV is faulty or there is a bug in the MobileForge software when running on a Gen2 FireTV.
I presume now I am ready to begin creating my meter profile now with "Expand video levels to PC" turned on? Do I need turn turn the "Low Light Handler" back on?
A little off topic but Ted in a pitch black room with treated walls & floor what do you calibrate peak white to? As the room is very dark I am finding the TV very bright at levels recommended on the forums.
I also want to calibrate a day mode for when I have the black out blinds open in a separate picture mode, where should I be aiming for with peak white with a good amount of ambient light? No light will directly be shining on the screen.