X server sets invalid DPI

[Graeme Gill]

Simon Farnsworth wrote:
> RandR 1.2 exposes all the information available to the X server - the screen 
> size in mm for each output, the locations of each output in pixels, and the 
> size of each output in pixels. 

Sounds like something is missing: The typical viewing distance
(ie. is this a projector, TV, desktop display or hand held ?),
so that the subjective resolution can be computed.

Graeme Gill.