This is fontconfig's problem.
In 10.04, result of "fc-match serif:lang=ja" is following: DejaVuSerif.ttf: "DejaVu Serif" "Book"
Therefore, update-vfontmap specified DejaVu (English) to use font for rml.
This is fontconfig's problem.
In 10.04, result of "fc-match serif:lang=ja" is following:
DejaVuSerif.ttf: "DejaVu Serif" "Book"
Therefore, update-vfontmap specified DejaVu (English) to use font for rml.