Why EDID is not trustworthy for DPI

Adam Williamson awilliam at redhat.com
Thu Oct 6 17:49:40 UTC 2011

On Thu, 2011-10-06 at 12:00 -0400, Simo Sorce wrote:

> So in that case you really should just give an option to the user to
> easily change DPI (no need to call the option 'DPIs', it can be a slider
> with no mention of DPI if you prefer) *if* it is needed.

There actually is one, only it's called the Text Scaling Factor, and
it's hidden in the Accessibility panel. It effectively sets the DPI to
96*TSF, so you have to do desired dpi / 96 to figure out what you want
to set it to.

(That's a much better UI! Now, both people who know what DPI is and how
to calculate it and people who don't are lost and confused. equality ho!
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Twitter: AdamW_Fedora | identi.ca: adamwfedora

More information about the devel mailing list