Why EDID is not trustworthy for DPI

Jon Masters jonathan at jonmasters.org
Thu Oct 6 15:39:16 UTC 2011

On Thu, 2011-10-06 at 16:20 +0100, Matthew Garrett wrote:
> On Thu, Oct 06, 2011 at 11:14:56AM -0400, Jon Masters wrote:
> > How about "EDID as it exists today". Since you're able to so beautifully
> > explain what the pitfalls are, I'd assume you've raised this with the
> > VESA and asked that they revisit this in the future to accurately
> > provide DPI information that Operating Systems can rely on?
> The specification provides everything needed to express this data 
> accurately, and proves the worth of specifications by virtue of 
> approximately nobody actually implementing it correctly.

How about an actual DPI value?


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