On Wed, Nov 1, 2017 at 9:14 PM, Pali Rohár <pali.ro...@gmail.com> wrote: > On Wednesday 01 November 2017 21:04:17 Giuseppe Bilotta wrote: >> >> Personally, I disagree with the statement that the core DPI value has >> no useful meaning in multi-monitor configuration. > > Hi! I did not write such thing. > > The whole documentation is talking about physical size of the X Screen. > > There is no "core DPI". There is just resolution of the X Screen and > physical size (in mm) of the X Screen. And IIRC X Server does not report > any value "DPI" for X Screen. > > And as I added in patch, that physical size in mm of the X Screen does > not have any coordinate meaning as it does not match any physical > reality of display. > > So... now I'm thinking if documentation update by me is really good if > there are already people who interpreted it not in way as I thought :-(
Sorry, I should have clarified. By “core DPI” I mean the DPI computed from the values of Screen width/height in pixel and mm as reported by the core protocol. But as I said, this value gets used _at the very least_ as the fallback for Xft.dpi (per the Xft specification), so it is not without meaning. However, I do agree with you that it might be useful to point out that the values do not carry a _physical_ meaning in the case of multiple monitors. -- Giuseppe "Oblomov" Bilotta _______________________________________________ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: https://lists.x.org/mailman/listinfo/xorg-devel
