(In reply to Stefan Hundhammer from comment #27) > Wild shot into the blue: QVariant conversion gone wrong? Expecting and int > and getting a double, so the toInt() conversion fails? No, Qt simply expects that Xft.dpi is an integer, but it's not, so Xft.dpi is ignored and it uses whatever is the next source for the logical DPI (in this case the physical screen DPI). This needs to be fixed in GNOME.