[Development] Updated high-DPI support for Qt 5.14

[Allan Sandfeld Jensen]

On Thursday, 26 September 2019 04:48:26 CEST Thiago Macieira wrote:
> > If possible, I’d like us to move away from relying on setting environment
> > variables, and/or switch to specifying per-screen DPI instead of a scale
> > factor.
> 
> Sure, but where, on X11?

xrandr?

We read the X11 setting there. Though if you use GNOME they will override the 
values to something meaningless, and we don't currently read the GNOME per 
screen settings. For KDE it should work though.

'Allan