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Just to add that with this 1920x1088 problem I am not sure it is possible to get 1:1 pixel mapping, or even a correct aspect ratio, of a 1920x1080 blu-ray sourced video to a 1920x1080 screen.
I guess it may be driver dependent. I have an ATI3850 with Cat 8.4.
There are many possible permutations of aspect ratio and pan&scan settings but I have yet to find one that displays the video as intended.
If 1920x1088 is displayed with the right aspect ratio in 1920x1080 it should be displayed as 1920*1080/1088 by 1080. This leaves small black borders to the left and right. Not to say there isn't one but I have yet to find a combination of settings that does this.
If I select "stretch to fit" the video fills the screen horizontally but still has 1088 lines squeezed into 1080. Clearly the video is distorted.
If I select "normal size" something odder happens. The video appears stretched even further horizontally, but still with the same vertical compression. It appears the video is being rendered as 1920*1088/1080 by 1080, with a few pixels cropped from left and right to display as 1920x1080. This seems to be the inverse of the adjustment needed to acheive the right aspect ratio
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