I couldn't find any of these strings in the font server's repository,
but I did find this font alias on the thin client's font repository:
# Found in /usr/X11R6/lib/X11/fonts/75dpi/fonts.alias:
75dpi/fonts.alias:"-adobe-helvetica-medium-r-normal-x-x-x-12-120-p-67-iso8859-1"
"-adobe-helvetica-medium-r-normal--12-120-75-75-p-67-iso8859-15"
I see. As it's an alias, this correct font name:
-adobe-helvetica-medium-r-normal--12-120-75-75-p-67-iso8859-15
should be included in the list returned by
xfont_list_pattern even if we ignore that alias. So, I've
just installed a fix to ginore such an errornous name.
Could you please try again with the latest code?