On Mon, Dec 06, 2004 at 11:49:12PM +0900, Mike Hommey > On Mon, Dec 06, 2004 at 08:26:38AM -0600, Billy Biggs > > 3. DPI becomes more complicated given different display devices such > > as data projectors. > > I don't see why. The only problem that could happen is that when > plugging in the new display, X doesn't know instantly that the dpi > changed.
I would not like to have my screen projected with 1/2 inch (or 1 cm or whatever galactic leagues) letters high. In fact, I do not want to know the dpi of my projector (which varies according to the distance between it and the wall, anyway). So I would have to lie about the DPI of my projector, should it ever communicate with my X server. I certainly do not want fonts based on a resolution of 5-20 dpi (which is approximately what you get with a projector). So what people want sometimes is measure in pixels (this is the case of the font/widget rendering, and the case when the screen is a projector), and sometimes points/cm/inches (this is the case of the graphics rendering). -- JCD
