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[Heiko Harders <heiko.harders@xxxxxxxxx>]

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https://bugs.launchpad.net/bugs/870874

Title:
  LDAP user with automounted nfs homedir cannot login

Status in “lightdm” package in Ubuntu:
  New

Bug description:
  After installing Ubuntu (Oneiric, development branch) I followed two
  guides to setup LDAP authentication and automounting of home
  directories using autofs-ldap. This setup was working properly for
  older Ubuntu releases (just to be sure I also tried with a fresh, up
  to date 11.04 installation).

  The following steps were executed to setup LDAP authentication:
  https://help.ubuntu.com/11.04/serverguide/C/openldap-server.html (section: LDAP Authentication)

  These steps were executed to setup Autofs-ldap:
  https://help.ubuntu.com/community/AutofsLDAP

  LDAP users properly login from the terminal (Ctrl-Alt-F1), in that
  case they can browse their automounted homedirs etc.

  When I try to login using LightDM the user seems to be logged in
  properly; the login widget disappears from the screen but other than
  that nothing is happening (the login screen background is still
  visible, but the login widget is gone). I still can move the mouse
  pointer but the user is not logged on. When taking a look at the
  user's .xsession-errors file there is not much to see, nothing that
  seems worrying to me. I can't find anything that obviously looks like
  an error in /var/log/*.

  I tried several things:
  - removed all files/directories starting with a . (dot) in the user's home directory
  - using LightDM and the default Ubuntu window manager
  - using LightDM with Gnome
  - using GDM with Gnome

  In all cases the same behavior was observed.
  Logging in with a local user works like a charm.

  This is what /var/log/lightdm/lightdm.log says:
  [+2.83s] DEBUG: Read 8 bytes from greeter
  [+2.83s] DEBUG: Read 15 bytes from greeter
  [+2.83s] DEBUG: Greeter start authentication for test_user
  [+2.83s] DEBUG: pam_authenticate(0x169e340, 0) -> 10 (User not known to the underlying authentication module)
  [+2.83s] DEBUG: pam_start("lightdm", "test_user") -> (0x7f1ae4011570, 0)
  [+2.85s] DEBUG: Prompt greeter with 1 message(s)
  [+2.85s] DEBUG: Wrote 45 bytes to greeter
  [+16.20s] DEBUG: Read 8 bytes from greeter
  [+16.20s] DEBUG: Read 16 bytes from greeter
  [+16.20s] DEBUG: Continue authentication
  [+16.22s] DEBUG: pam_authenticate(0x7f1ae4011570, 0) -> 0 (Success)
  [+16.22s] DEBUG: pam_acct_mgmt(0x7f1ae4011570, 0) -> 0 (Success)
  [+16.22s] DEBUG: Authenticate result for user test_user: Success
  [+16.22s] DEBUG: User test_user authorized
  [+16.22s] DEBUG: Wrote 27 bytes to greeter
  [+16.24s] DEBUG: Read 8 bytes from greeter
  [+16.24s] DEBUG: Read 15 bytes from greeter
  [+16.24s] DEBUG: Greeter requests session gnome-shell
  [+16.25s] DEBUG: Stopping greeter
  [+16.25s] DEBUG: Dropping privileges to uid 104
  [+16.25s] DEBUG: Removing session authority from /var/lib/lightdm/.Xauthority
  [+16.28s] DEBUG: Restoring privileges
  [+16.28s] DEBUG: Sending signal 15 to process 7950
  [+16.28s] DEBUG: Process 7950 exited with return value 0
  [+16.28s] DEBUG: pam_close_session(0x167f300) -> 0 (Success)
  [+16.28s] DEBUG: pam_setcred(0x167f300, PAM_DELETE_CRED) -> 0 (Success)
  [+16.28s] DEBUG: pam_end(0x167f300) -> 0
  [+16.28s] DEBUG: Ending ConsoleKit session 6e3a694924188906d4093c6702696be1-1318095483.743254-1770205889
  [+16.31s] DEBUG: Greeter quit
  [+16.31s] DEBUG: Starting user session
  [+16.38s] DEBUG: Dropping privileges to uid 1049
  [+16.38s] DEBUG: Writing /srv/home/test_user/.dmrc
  [+17.48s] DEBUG: Restoring privileges
  [+17.51s] DEBUG: Starting session gnome-shell as user test_user logging to /srv/home/test_user/.xsession-errors
  [+17.51s] DEBUG: Launching session
  [+17.51s] DEBUG: pam_set_item(0x7f1ae4011570, 3, ":0") -> 0 (Success)
  [+17.55s] DEBUG: pam_open_session(0x7f1ae4011570, 0) -> 0 (Success)
  [+17.58s] DEBUG: Opened ConsoleKit session 6e3a694924188906d4093c6702696be1-1318095500.694488-13642418
  [+17.58s] DEBUG: Dropping privileges to uid 1049
  [+17.58s] DEBUG: Adding session authority to /srv/home/test_user/.Xauthority
  [+17.82s] DEBUG: Restoring privileges
  [+17.82s] DEBUG: Launching process 8053: /usr/sbin/lightdm-session 'gnome-session --session=gnome'
  [+17.82s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
  [+17.92s] DEBUG: pam_setcred(0x7f1ae4011570, PAM_ESTABLISH_CRED) -> 0 (Success)
  [+17.92s] DEBUG: PAM returns environment 'GNOME_KEYRING_CONTROL=/tmp/keyring-6wgIZV GNOME_KEYRING_PID=8044 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games LANG=en_US.UTF-8'

  The user's .xsession_errors:
  Running X session wrapper
  Loading profile from /etc/profile
  Loading resource: /etc/X11/Xresources/x11-common
  Loading X session script /etc/X11/Xsession.d/20x11-common_process-args
  Loading X session script /etc/X11/Xsession.d/30x11-common_xresources
  Loading X session script /etc/X11/Xsession.d/40x11-common_xsessionrc
  Loading X session script /etc/X11/Xsession.d/50_check_unity_support
  Loading X session script /etc/X11/Xsession.d/50x11-common_determine-startup
  Loading X session script /etc/X11/Xsession.d/52libcanberra-gtk3-module_add-to-gtk-modules
  Loading X session script /etc/X11/Xsession.d/52libcanberra-gtk-module_add-to-gtk-modules
  Loading X session script /etc/X11/Xsession.d/55gnome-session_gnomerc
  Loading X session script /etc/X11/Xsession.d/60x11-common_localhost
  Loading X session script /etc/X11/Xsession.d/60x11-common_xdg_path
  Loading X session script /etc/X11/Xsession.d/60xdg-user-dirs-update
  Loading X session script /etc/X11/Xsession.d/65compiz_profile-on-session
  Loading X session script /etc/X11/Xsession.d/70gconfd_path-on-session
  Loading X session script /etc/X11/Xsession.d/75dbus_dbus-launch
  Loading X session script /etc/X11/Xsession.d/80appmenu
  Loading X session script /etc/X11/Xsession.d/80appmenu-gtk3
  Loading X session script /etc/X11/Xsession.d/80im-switch
  Setting IM through im-switch for locale=en_US.
  Start IM through /etc/X11/xinit/xinput.d/all_ALL linked to /etc/X11/xinit/xinput.d/default.
  Loading X session script /etc/X11/Xsession.d/90consolekit
  Loading X session script /etc/X11/Xsession.d/90qt-a11y
  ((EOF, thats all))

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: lightdm 1.0.1-0ubuntu4
  ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
  Uname: Linux 3.0.0-11-generic x86_64
  ApportVersion: 1.23-0ubuntu2
  Architecture: amd64
  Date: Sat Oct  8 19:40:24 2011
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110921.2)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: lightdm
  UpgradeStatus: No upgrade log present (probably fresh install)

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