Emacs-20.5 refuses to start under X

[Andreas Tille <tillea@rki.de>]

Hello,

I've updated to

> dpkg --status emacs20
Package: emacs20
Status: install ok installed
Priority: standard
Section: editors
Installed-Size: 26541
Maintainer: Rob Browning <rlb@cs.utexas.edu>
Version: 20.5a-2

It works well under the console but refuses to start under X.
An `strace emacs` ends with


select(5, [4], NULL, NULL, NULL)        = 1 (in [4])
--- SIGIO (Ein-/Ausgabe ist möglich) ---
sigreturn()                             = ? (mask now [])
read(4, "\1\2\265\0\0\0\0\0\24\0@\3\0\0\0\0\0\0\0\0\1\0\0\0\0\0"..., 32) = 32
writev(4, [{"1\0\20\0\n\0007\0", 8}, {"-Misc-Fixed-bold-R-Normal-*-15-1"..., 55}, {"\0", 1}], 3) = 64
read(4, 0xbfffe06c, 32)                 = -1 EAGAIN (Resource temporarily unavailable)
select(5, [4], NULL, NULL, NULL


Seems me if emacs is unable to find a font.

How can I fix this and how to submit a qualified bug-report, i.e. 
should emacs depend from any X-font package or should it be made
independent from this font.

Kind regards

          Andreas.