Why EDID is not trustworthy for DPI

[Bill Nottingham]

Simo Sorce (simo at redhat.com) said: 
> My main use case here is video projectors, and in that case there is no
> way on earth you'll ever know the DPI as it depends on the distance from
> the wall, and again even if you knew the distance from the wall you'd
> know nothing because the optimal DPI will also depend on the distance of
> the crowd from the wall.

Obviously you embed radar in every projector.

Bill