[GNU Emacs 24.0.92.1
 (i686-suse-linux-gnu, GTK+ Version 2.24.7)
 of 2011-12-01 on linux-nvf0

[libotf and libm17n CVS from 24-Feb-2011]

[bzr revno 106566]


Starting with `emacs -Q' and loading a file encoded in koi8-r, Emacs
uses an oblique style to display Russian characters on my GNU/Linux
box.  Given that normal ASCII is displayed upright, and that the
upright font (from the same family) contains Cyrillic glyphs also, I
consider this as a bug.

Here the information for a Cyrillic letter using `C-u C-x =':

          character: ç (1043, #o2023, #x413)
  preferred charset: koi8-r (KOI8-R)
         code point: 0xE7
             syntax: w    which means: word
           category: .:Base,
                     L:Left-to-right (strong),
                     Y:2-byte Cyrillic,
                     c:Chinese,
                     h:Korean,
                     j:Japanese,
                     y:Cyrillic
        buffer code: #xD0 #x93
          file code: #xE7 (encoded by coding system cyrillic-koi8-unix)
            display: by this font (glyph code)
                xft: -unknown-DejaVu Sans Mono-normal-oblique-normal-
                     *-18-*-*-*-m-0-iso10646-1 (#x347)

And now the same for a Latin digit (in the same buffer):

          character: 7 (55, #o67, #x37)
  preferred charset: koi8-r (KOI8-R)
         code point: 0x37
             syntax: w    which means: word
           category: .:Base,
                     a:ASCII,
                     l:Latin,
                     r:Roman
        buffer code: #x37
          file code: #x37 (encoded by coding system cyrillic-koi8-unix)
            display: by this font (glyph code)
                xft: -unknown-DejaVu Sans Mono-normal-normal-normal-
                     *-18-*-*-*-m-0-iso10646-1 (#x1A)

I've attached the output of

  fc-list -v "DejaVu Sans Mono"


     Werner