This combination of a logical (storage) 3:2 aspect ratio with a physical aspect ratio of 8:5 would mean that the display has non-square pixels (pixel aspect ratio = (8/5) / (3/2) = 1.067).
Is it true that the physical aspect ratio of the display is 8:5? What are the dimension of the active area of the display panel?
I’ve always understood that the physical aspect ratio was 3:2 (the same as the pixel ratio).
I’ll try to measure it ASAP.
Added later:
Phew. As near as I can measure, it is 285mm x 190mm. Exactly 3:2.
Added even later:
Search results seem pretty consistently to say the aspect ratio of the surface laptop is 3:2 too. I have corrected Wikipedia.