[dix] Could not init font path element /usr/share/fonts/X11/misc, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/cyrillic, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/100dpi/:unscaled, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/75dpi/:unscaled, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/Type1, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/100dpi, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/75dpi, removing from list!
In addition these install the fonts used by xvfb:
sudo apt-get install xfonts-100dpi xfonts-75dpi xfonts-scalable xfonts-cyrillic
and will get rid of these errors:
[dix] Could not init font path element /usr/share/ fonts/X11/ misc, removing from list! fonts/X11/ cyrillic, removing from list! fonts/X11/ 100dpi/ :unscaled, removing from list! fonts/X11/ 75dpi/: unscaled, removing from list! fonts/X11/ Type1, removing from list! fonts/X11/ 100dpi, removing from list! fonts/X11/ 75dpi, removing from list!
[dix] Could not init font path element /usr/share/
[dix] Could not init font path element /usr/share/
[dix] Could not init font path element /usr/share/
[dix] Could not init font path element /usr/share/
[dix] Could not init font path element /usr/share/
[dix] Could not init font path element /usr/share/