X broken in current Debian/Sid/Unstable ?

[fea <freelsjd@ornl.gov>]

I currently use Debian/Sid/Unstable primarily in order to use
KDE 2.2.x (yes I know I deserve this, but it is so hard to resist).
Most of the time things are stable.  However, an upgrade today
broke X for me.  I have seen a couple of other folks with a similar
problem, but no solutions posted; hence, this attempt.  The error 
message near the tail of /var/log/XFree86.0.log:

Fatal server error:
could not open default font 'fixed'

Any help appreciated.