Re: Child-frame can not move to proper position when run "env GDK_SCALE=2 emacs"

[Dmitry Gutov]

On 1/10/18 6:58 PM, Robert Pluim wrote:

> They must be using something other than gtk_widget_get_scale_factor
> then. Or they've changed it to support non-integer values.

Indeed, it seems like this is a value-add over GNOME. Canonical is said 
to use some patched versions of libraries, maybe it's one of the places.

Or it performs additional scaling in the compositor, like described 
here: https://wiki.gnome.org/Initiatives/FracionalScaling In that case, 
the proposed fix might work with those cases too.