Bug#353940: kdm: will no longer start (using Xvnc, "errno 97")

[Erik Anderson <erikba@teamworkgroup.com>]

Package: kdm
Version: 4:3.5.1-1
Severity: important


I am no longer able to log into my debian linux box using Xvnc, the
following log messages result with any attempt:

kdm[2181]: XDMCP socket creation failed, errno 97
kdm[2181]: Internal error: config reader supplied incomplete data
kdm[2181]: Unable to read configuration for display :0; stopping it.
kdm[2181]: Internal error: config reader supplied incomplete data
kdm[2181]: Unable to read configuration for display knight.vpn:1; stopping it.
kdm[2181]: Internal error: config reader supplied incomplete data
kdm[2181]: Unable to read configuration for display knight.vpn:1; stopping it.

I usually run dselect once a week, this issue began with the update made
last friday.  This last update made a modification to kdmrc, and the issue
here was initially diagnosed with the unmodified file.  I compared the
files and imported the modifications into the dpkg-dist version with no
visible change.  The only obvious modifications are a commenting out of
StaticServers and enabling of XDMRC.

Very few matches on Google for this issue.  I found one message stating
that I needed a "clean rebuild" of the binary, another suggesting that
this might be an IPv6 issue (I do not believe that I am running IPv6 at
the moment)

-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (500, 'testing'), (500, 'stable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.10
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages kdm depends on:
ii  debconf [debconf-2.0]     1.4.70         Debian configuration management sy
ii  kdebase-bin               4:3.5.1-1      core binaries for the KDE base mod
ii  kdebase-data              4:3.5.1-1      shared data files for the KDE base
ii  kdelibs4c2a               4:3.5.1-2      core libraries for all KDE applica
ii  libc6                     2.3.5-13       GNU C Library: Shared libraries an
ii  libgcc1                   1:4.0.2-8      GCC support library
ii  libpam-runtime            0.79-3.1       Runtime support for the PAM librar
ii  libpam0g                  0.79-3.1       Pluggable Authentication Modules l
ii  libqt3-mt                 3:3.3.5-3      Qt GUI Library (Threaded runtime v
ii  libstdc++6                4.0.2-8        The GNU Standard C++ Library v3
ii  libx11-6                  6.9.0.dfsg.1-4 X Window System protocol client li
ii  libxau6                   6.9.0.dfsg.1-4 X Authentication library
ii  libxdmcp6                 6.9.0.dfsg.1-4 X Display Manager Control Protocol
ii  libxtst6                  6.9.0.dfsg.1-4 X Window System event recording an
ii  xbase-clients             6.9.0.dfsg.1-4 miscellaneous X clients

Versions of packages kdm recommends:
ii  logrotate                     3.7.1-2    Log rotation utility

-- debconf information:
  kdm/stop_running_server_with_children: false
* shared/default-x-display-manager: kdm
  kdm/daemon_name: /usr/bin/kdm