Comment 95 for bug 589485

@Sergio, sorry but your comments are OT. Different resolutions for different screens are not supported on the toolkit level; a window can be on both screens at once and such, and it is beyond the scope of this bug. Viewing distance again has nothing to do with this bug; DPI does not depend on the viewing distance, it simply expresses physical dimensions (lengths) of one pixel; length does not depend on distance (I am a physicist, I know that one for sure). Of course for guessing comfortable font size for reading, viewing distance is important, but that is an entirely different problem, although it actually required a valid value of DPI.