f8fd02d6ee
The code calculating the output scale involves calculations around pixel and mm sizes, however we do compare post-transformation pixel sizes to untransformed mm sizes, which breaks the DPI calculations. Fix this by transforming back pixel sizes back to untransformed. While we're at it, actually compare the output height to HIDPI_MIN_HEIGHT instead of its width, it seems right according to the #define name and comment. https://bugzilla.gnome.org/show_bug.cgi?id=777687