/usr/X11R6/lib/X11/fonts/truetype needs to be added by default to the XF86Config
XftConfig has this as a font directory, listed at the top of the file. Does it need to be listed both places?
Why ? XF86Config is as from the XFree86 sources. They use TTF, and not truetype ..... If you prefer truetype ...... As to XftConfig, I am not sure.
Userland.