Bug#770615: mate-session-manager: Switching users don't work with MATE and Lightdm

[Frederic MASSOT]

Package: mate-session-manager
Version: 1.8.1-5
Severity: normal

Dear Maintainer,

I use MATE and Lightdm (1.10.3-3).i

In the Lightdm configuration "allow-user-switching" is enabled:

allow-user-switching=true

$ dm-tool list-seats
Seat0
  CanSwitch=true
  HasGuestAccount=false
  Session2
    UserName='fredo'

But the switching users does not work.

In MATE, when I clic on the menu "System" --> "Close session" --> button "Switch user" nothing happens.
The window with the three buttons closes, but the login screen does not appear. I stay on my session. 

In .xsession-errors file I have this message:

** (gdmflexiserver:19422): WARNING **: Unable to create transient display: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.DisplayManager was not provided by any .service files
GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.DisplayManager was not provided by any .service files



Regards.

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

Kernel: Linux 3.16.0-4-686-pae (SMP w/1 CPU core)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages mate-session-manager depends on:
ii  dbus-x11                                     1.8.10-1
ii  dconf-gsettings-backend [gsettings-backend]  0.22.0-1
ii  libatk1.0-0                                  2.14.0-1
ii  libc6                                        2.19-13
ii  libcairo2                                    1.14.0-2.1
ii  libdbus-1-3                                  1.8.10-1
ii  libdbus-glib-1-2                             0.102-1
ii  libfontconfig1                               2.11.0-6.1
ii  libfreetype6                                 2.5.2-2
ii  libgdk-pixbuf2.0-0                           2.31.1-2+b1
ii  libglib2.0-0                                 2.42.0-2
ii  libgtk2.0-0                                  2.24.25-1
ii  libice6                                      2:1.0.9-1
ii  libpango-1.0-0                               1.36.8-2
ii  libpangocairo-1.0-0                          1.36.8-2
ii  libpangoft2-1.0-0                            1.36.8-2
ii  libsm6                                       2:1.2.2-1
ii  libsystemd0                                  215-5+b1
ii  libx11-6                                     2:1.6.2-3
ii  libxau6                                      1:1.0.8-1
ii  libxext6                                     2:1.3.3-1
ii  libxrender1                                  1:0.9.8-1+b1
ii  libxtst6                                     2:1.2.2-1+b1
ii  upower                                       0.99.1-3

Versions of packages mate-session-manager recommends:
ii  caja                  1.8.2-1
ii  marco                 1.8.2+dfsg1-4
ii  mate-panel            1.8.1+dfsg1-2
ii  mate-polkit           1.8.0+dfsg1-4
ii  mate-settings-daemon  1.8.2-1

mate-session-manager suggests no packages.

-- no debconf information