I'm studied Xft/fontconfig well enough to guess what's going on. It appears that Xft/fontconfig don't provide a reliable mechanism for the application to say that they don't want an 8-bit font. (It is possible to use the FC_CHARSET property to do something like this, but it's slow and unreliable).
I noticed that if I change the fontsize of the xterm, some fontsizes give the 8-bit font, some give the Unicode font. That's by chance, according to what fontconfig happened to find as a close match. -- Thomas E. Dickey http://invisible-island.net ftp://invisible-island.net
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