Sorry, for my late response. I checked everything, but unfortunately
I
could not manage to solve the problem. I still do not know how to
configure the X environment in order to use a special font when I use
Persian (Farsi).
I am not sure how easy it is to solve this problem.
I would suggest trying to ask on fedora-fonts-list where there are some
people more familiar with Arabic fonts and probably aware of this problem.
Jens