Sorry, what I was asking was how you determined that the image via HDMI 1 is softer than it should be. Are you comparing it to HDMI 2, another player, memory from a previous firmware version, etc.?
The Disney WOW disc has a number of advanced scaling tests to determine pixel precision, and all of them line up perfectly on my display including a full screen 1x1 pixel checkerboard, so my setup appears to be resolving every bit of detail on the disc on both HDMI 1 and HDMI 2 at both 1080p and Source Direct. I suppose something could be occurring in the motion processing that's affecting moving content, but based on test patterns, every pixel is accounted for. Do you have the WOW disc?
It's not a "real" loss of resolution like a scaling error.
What appears to be happening is that edge pixels are being assigned an intermediate Luma value. This softens the edge contrast -- fuzzing the image. It is happening on both horizontal and vertical edges.
As such it is unlikely to stand out in those scaling charts because the pixels are being rendered in the correct places, just with a uniformly different Luma value.
The effect only seems to happen on Luma edges. Chroma edges show no problem.
I'd say this has all the classic signs of Luma edge enhancement (Sharpness) set a notch too low. However, the negative result from the Source Direct test still needs to be explained.