Bug#492733: Trying to open a new session closes the previous one

Stéphane Blondon stephane.blondon at gmail.com
Mon Jul 28 14:27:19 UTC 2008


Package: gdm
Version: 2.20.7-1
Severity: normal

Running several sessions on the same computer is impossible. It worked
with etch but after an upgrade to Lenny, it doesn't work : when a user
tries to launch a new session (using the fast-switch-applet or by
System/Close the session/Change user), the serveur X close and the
login screen is displayed. The user can login but the previous session
has been killed.

- no proprietary driver
- xorg.conf seems to be the same between etch and lenny (no backup
file in /etc).
- system updated:
# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

'stephane' is an user existing in etch version. Users 'pipo' and
'bimbo' have been created to test if the same problem occurs with
users created from scratch with the lenny version of debian. The
problem is still there.

extract from /var/log/daemon.log :

Jul 28 15:02:34 degtyarov gdm[27620]: WARNING:
gdm_slave_xioerror_handler : erreur X fatale - Redémarrage de :0
Jul 28 15:02:35 degtyarov acpid: client connected from 898[0:0]
Jul 28 15:03:08 degtyarov acpid: client connected from 1039[0:0]
Jul 28 15:03:09 degtyarov gdm[894]: WARNING:
gdm_slave_xioerror_handler : erreur X fatale - Redémarrage de :0
Jul 28 15:03:10 degtyarov acpid: client connected from 1045[0:0]
Jul 28 15:03:35 degtyarov acpid: client connected from 1193[0:0]
Jul 28 15:03:36 degtyarov gdm[1043]: WARNING:
gdm_slave_xioerror_handler : erreur X fatale - Redémarrage de :0
Jul 28 15:03:37 degtyarov acpid: client connected from 1203[0:0]


extract from /var/log/auth.log :

Jul 28 15:02:34 degtyarov gdm[27620]: pam_unix(gdm:session): session
closed for user stephane
Jul 28 15:02:40 degtyarov gdm[894]: pam_nologin(gdm:auth): cannot
determine username
Jul 28 15:02:45 degtyarov gdm[894]: pam_unix(gdm:session): session
opened for user pipo by (uid=0)
Jul 28 15:03:09 degtyarov gdm[894]: pam_unix(gdm:session): session
closed for user pipo
Jul 28 15:03:14 degtyarov gdm[1043]: pam_nologin(gdm:auth): cannot
determine username
Jul 28 15:03:21 degtyarov gdm[1043]: pam_unix(gdm:session): session
opened for user bimbo by (uid=0)
Jul 28 15:03:36 degtyarov gdm[1043]: pam_unix(gdm:session): session
closed for user bimbo
Jul 28 15:03:41 degtyarov gdm[1201]: pam_nologin(gdm:auth): cannot
determine username
Jul 28 15:03:48 degtyarov gdm[1201]: pam_unix(gdm:session): session
opened for user stephane by (uid=0)

(xorg.conf and Xorg.0.log are provided as linked files.)


-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.25-2-486
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages gdm depends on:
ii  adduser                3.108             add and remove users and groups
ii  debconf [debconf-2.0]  1.5.22            Debian configuration management sy
ii  gksu                   2.0.0-5           graphical frontend to su
ii  gnome-session [x-sessi 2.22.3-1          The GNOME 2 Session Manager
ii  gnome-terminal [x-term 2.22.3-1          The GNOME 2 terminal emulator appl
ii  libart-2.0-2           2.3.20-2          Library of functions for 2D graphi
ii  libatk1.0-0            1.22.0-1          The ATK accessibility toolkit
ii  libattr1               1:2.4.43-1        Extended attribute shared library
ii  libc6                  2.7-10            GNU C Library: Shared libraries
ii  libcairo2              1.6.4-6           The Cairo 2D vector graphics libra
ii  libdbus-1-3            1.2.1-2           simple interprocess messaging syst
ii  libdbus-glib-1-2       0.76-1            simple interprocess messaging syst
ii  libdmx1                1:1.0.2-3         X11 Distributed Multihead extensio
ii  libfontconfig1         2.6.0-1           generic font configuration library
ii  libfreetype6           2.3.7-1           FreeType 2 font engine, shared lib
ii  libglade2-0            1:2.6.2-1         library to load .glade files at ru
ii  libglib2.0-0           2.16.4-2          The GLib library of C routines
ii  libgnomecanvas2-0      2.20.1.1-1        A powerful object-oriented display
ii  libgtk2.0-0            2.12.10-2         The GTK+ graphical user interface
ii  libpam-modules         0.99.7.1-6        Pluggable Authentication Modules f
ii  libpam-runtime         0.99.7.1-6        Runtime support for the PAM librar
ii  libpam0g               0.99.7.1-6        Pluggable Authentication Modules l
ii  libpango1.0-0          1.20.5-1          Layout and rendering of internatio
ii  librsvg2-2             2.22.2-2          SAX-based renderer library for SVG
ii  librsvg2-common        2.22.2-2          SAX-based renderer library for SVG
ii  libselinux1            2.0.59-1          SELinux shared libraries
ii  libwrap0               7.6.q-15          Wietse Venema's TCP wrappers libra
ii  libx11-6               2:1.1.4-2         X11 client-side library
ii  libxau6                1:1.0.3-3         X11 authorisation library
ii  libxdmcp6              1:1.0.2-3         X11 Display Manager Control Protoc
ii  libxext6               2:1.0.4-1         X11 miscellaneous extension librar
ii  libxi6                 2:1.1.3-1         X11 Input extension library
ii  libxinerama1           2:1.0.3-2         X11 Xinerama extension library
ii  libxml2                2.6.32.dfsg-2     GNOME XML library
ii  lsb-base               3.2-12            Linux Standard Base 3.2 init scrip
ii  metacity [x-window-man 1:2.22.0-1        A lightweight GTK2 based Window Ma
ii  twm [x-window-manager] 1:1.0.4-2         Tab window manager
ii  xterm [x-terminal-emul 235-1             X terminal emulator
ii  zlib1g                 1:1.2.3.3.dfsg-12 compression library - runtime

Versions of packages gdm recommends:
pn  gdm-themes                   <none>      (no description available)
ii  whiptail                     0.52.2-11.3 Displays user-friendly dialog boxe
pn  xserver-xephyr | xnest       <none>      (no description available)
ii  xserver-xorg                 1:7.3+14    the X.Org X server
ii  zenity                       2.22.1-1    Display graphical dialog boxes fro

Versions of packages gdm suggests:
ii  libpam-gnome-keyring          2.22.3-1   PAM module to unlock the GNOME key
ii  locales                       2.7-10     GNU C Library: National Language (
ii  uswsusp                       0.7-1.2    tools to use userspace software su

-- debconf information:
  gdm/daemon_name: /usr/bin/gdm
* shared/default-x-display-manager: gdm



-- 
Stéphane.
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