I have used a patched Cairo in 11.2 from Packman and the fonts were excellent. Now I upgraded to 11.3 and installed freetype from subpixel repo. While I have good fonts in Qt now, in Gnome still they are bad. There is no patched Cairo in Packman for 11.3 Installing the patched Cairo for 11.2 from Packman and from Ubuntu-patch project did not help :-(