On Thu, 2016-10-27 at 20:29 -0400, David Airlie wrote: > > ----- Original Message ----- > > From: "Kevin Kofler" <kevin.kofler@xxxxxxxxx> > > To: devel@xxxxxxxxxxxxxxxxxxxxxxx > > Sent: Friday, 28 October, 2016 7:50:48 AM > > Subject: Re: F25 workstation, and (almost) hidpi displays > > > > nicolas.mailhot@xxxxxxxxxxx wrote: > > > But, GTK core maintainers have always insisted those didn't exist (just > > > like they insisted on hardcoding 96 dpi, on the eve of Apple showing the > > > world it was arbitrary and obsolete). > > > > The worst is that this mentality has infected the core X11 as well, also > > breaking KDE's code that would carefully compute the correct DPI, if only > > X11 would not go out of its way to lie to it about the physical screen size! > > You could use the randr protocol to read the physical screen size, > > DP-3-1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 518mm x 324mm > > Not sure what you think is hiding it, sounds like KDE is just broken. Well, no, that's not fair - X allows you to query the display size, and it used to return whatever the display claimed was its physical size, then it changed to returning a lie explicitly intended to cause things that do a DPI calculation to calculate 96pdi. KDE uses that X interface, and so when X changed its behaviour, it resulted in KDE almost always rendering at 96dpi (which is basically the result the X change wanted, but wasn't necessarily what the KDE developers wanted). It's true that they *can* still query the actual EDID-reported display size somehow, but it's not really fair to say that KDE is 'broken' when X explicitly went and changed the interface KDE was using with the intent of making KDE do something different to what it thought it was doing. -- Adam Williamson Fedora QA Community Monkey IRC: adamw | Twitter: AdamW_Fedora | XMPP: adamw AT happyassassin . net http://www.happyassassin.net _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx
