http://bugs.winehq.org/show_bug.cgi?id=22765
--- Comment #16 from Dmitry Timoshkov dmitry@codeweavers.com 2010-05-24 03:25:34 --- (In reply to comment #15)
Try changing rgba value in your .fonts.conf from "rgb" to "none". This field does not mean "no smoothing", but rather, "no subpixel smoothing". But wine stops smoothing at all when rgba gets equal to none.
Why do you think that's not the same thing?