Package: lightdm Version: 1.18.2-1 Severity: normal Hi,
When trying to switch users, the second one can log in, but only gets two dialogs, and then the X session terminates. The errors are "Could not connect to session bus: Failed to connect to socket /tmp/dbus-... Connection refused" followed by "Could not aquire name on session bus". This bug is introduced in 1.18.2-1, it's a workaround to downgrade both lightdm and liblightdm-gobject-1-0 to 1.18.1-1 and then reboot. Creating a new user "testldm" and trying to log in shows the same problem as for the existing accounts. MATE is the default desktop environment on this laptop. BR, Steve -- Contents of .xsession-errors Xsession: X session started for testldm at Sat 2 Jul 17:37:47 CEST 2016 localuser:testldm being added to access control list dbus-update-activation-environment: error: unable to connect to D-Bus: Failed to connect to socket /tmp/dbus-4FNqvJQI9Q: Connection refused OpenGL version: 3. dbus-update-activation-environment: error: unable to connect to D-Bus: Failed to connect to socket /tmp/dbus-4FNqvJQI9Q: Connection refused x-session-manager[2281]: WARNING: Could not make bus activated clients aware of XDG_CURRENT_DESKTOP=MATE environment variable: Failed to connect to socket /tmp/dbus-4FNqvJQI9Q: Connection refused x-session-manager[2281]: WARNING: Could not make bus activated clients aware of DISPLAY=:1 environment variable: Failed to connect to socket /tmp/dbus-4FNqvJQI9Q: Connection refused x-session-manager[2281]: WARNING: Could not make bus activated clients aware of MATE_DESKTOP_SESSION_ID=this-is-deprecated environment variable: Failed to connect to socket /tmp/dbus-4FNqvJQI9Q: Connection refused x-session-manager[2281]: dconf-WARNING: failed to commit changes to dconf: Could not connect: Connection refused x-session-manager[2281]: WARNING: Could not make bus activated clients aware of SESSION_MANAGER=local/lisar:@/tmp/.ICE-unix/2281,unix/lisar:/tmp/.ICE-unix/2281 environment variable: Failed to connect to socket /tmp/dbus-4FNqvJQI9Q: Connection refused x-session-manager[2281]: Gtk-CRITICAL: gtk_main_quit: assertion 'main_loops != NULL' failed x-session-manager[2281]: CRITICAL: dbus_g_proxy_new_for_name: assertion 'connection != NULL' failed x-session-manager[2281]: Gtk-CRITICAL: gtk_main_quit: assertion 'main_loops != NULL' failed x-session-manager[2281]: GLib-GObject-CRITICAL: g_object_unref: assertion 'G_IS_OBJECT (object)' failed x-session-manager[2281]: WARNING: Could not make bus activated clients aware of GTK_OVERLAY_SCROLLING=0 environment variable: Failed to connect to socket /tmp/dbus-4FNqvJQI9Q: Connection refused x-session-manager[2281]: CRITICAL: error getting session bus: Failed to connect to socket /tmp/dbus-4FNqvJQI9Q: Connection refused x-session-manager[2281]: WARNING: Unable to register presence with session bus x-session-manager[2281]: CRITICAL: dbus_g_proxy_new_for_name: assertion 'connection != NULL' failed x-session-manager[2281]: CRITICAL: error getting session bus: Failed to connect to socket /tmp/dbus-4FNqvJQI9Q: Connection refused -- From lightdm.log [+1423.57s] DEBUG: Seat seat0: Switching to existing greeter [+1423.57s] DEBUG: Activating VT 8 [+1423.73s] DEBUG: Locking login1 session 2 [+1423.73s] DEBUG: Activating login1 session c3 [+1423.74s] DEBUG: Seat seat0 changes active session to c3 [+1423.74s] DEBUG: Session c3 is already active [+1426.85s] DEBUG: Greeter start authentication for testldm [+1426.85s] DEBUG: Session pid=1715: Sending SIGTERM [+1426.85s] DEBUG: Session pid=2268: Started with service 'lightdm', username 'testldm' [+1426.85s] DEBUG: Session pid=1715: Terminated with signal 15 [+1426.85s] DEBUG: Session: Failed during authentication [+1426.85s] DEBUG: Seat seat0: Session stopped [+1426.85s] DEBUG: Session pid=2268: Got 1 message(s) from PAM [+1426.85s] DEBUG: Prompt greeter with 1 message(s) [+1427.40s] DEBUG: Continue authentication [+1427.43s] DEBUG: Session pid=2268: Authentication complete with return value 0: Success [+1427.43s] DEBUG: Authenticate result for user testldm: Success [+1427.43s] DEBUG: User testldm authorized [+1427.51s] DEBUG: Greeter sets language en_GB.utf8 [+1427.53s] DEBUG: Writing /home/testldm/.dmrc [+1427.72s] DEBUG: Greeter requests session lightdm-xsession [+1427.74s] DEBUG: Writing /home/testldm/.dmrc [+1427.76s] DEBUG: Seat seat0: Stopping greeter; display server will be re-used for user session [+1427.76s] DEBUG: Session pid=1414: Sending SIGTERM [+1427.78s] DEBUG: Greeter closed communication channel [+1427.78s] DEBUG: Session pid=1414: Exited with return value 0 [+1427.78s] DEBUG: Seat seat0: Session stopped [+1427.78s] DEBUG: Seat seat0: Greeter stopped, running session [+1427.78s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session2 [+1427.78s] DEBUG: Session pid=2268: Running command /etc/X11/Xsession default [+1427.78s] DEBUG: Creating shared data directory /var/lib/lightdm/data/testldm [+1427.78s] DEBUG: Session pid=2268: Logging to .xsession-errors [+1427.83s] DEBUG: Activating VT 8 [+1427.83s] DEBUG: Activating login1 session 7 [+1431.93s] DEBUG: Session pid=2268: Exited with return value 0 [+1431.93s] DEBUG: Seat seat0: Session stopped [+1431.93s] DEBUG: Seat seat0: Stopping display server, no sessions require it [+1431.93s] DEBUG: Sending signal 15 to process 1404 [+1432.13s] DEBUG: Process 1404 exited with return value 0 [+1432.13s] DEBUG: DisplayServer x-1: X server stopped [+1432.13s] DEBUG: Releasing VT 8 [+1432.13s] DEBUG: DisplayServer x-1: Removing X server authority /var/run/lightdm/root/:1 [+1432.13s] DEBUG: Seat seat0: Display server stopped [+1432.13s] DEBUG: Seat seat0: Active display server stopped, starting greeter [+1432.13s] DEBUG: Seat seat0: Creating greeter session [+1432.13s] DEBUG: Seat seat0: Creating display server of type x [+1432.13s] DEBUG: Using VT 8 [+1432.13s] DEBUG: Seat seat0: Starting local X display on VT 8 [+1432.13s] DEBUG: DisplayServer x-1: Logging to /var/log/lightdm/x-1.log [+1432.13s] DEBUG: DisplayServer x-1: Writing X server authority to /var/run/lightdm/root/:1 [+1432.13s] DEBUG: DisplayServer x-1: Launching X Server [+1432.13s] DEBUG: Launching process 2323: /usr/bin/X :1 -seat seat0 -auth /var/run/lightdm/root/:1 -nolisten tcp vt8 -novtswitch [+1432.13s] DEBUG: DisplayServer x-1: Waiting for ready signal from X server :1 [+1432.75s] DEBUG: Got signal 10 from process 2323 [+1432.75s] DEBUG: DisplayServer x-1: Got signal from X server :1 [+1432.75s] DEBUG: DisplayServer x-1: Connecting to XServer :1 [+1432.75s] DEBUG: Seat seat0: Display server ready, starting session authentication [+1432.75s] DEBUG: Session pid=2330: Started with service 'lightdm-greeter', username 'lightdm' [+1432.76s] DEBUG: Session pid=2330: Authentication complete with return value 0: Success [+1432.76s] DEBUG: Seat seat0: Session authenticated, running command [+1432.76s] DEBUG: Session pid=2330: Running command /usr/sbin/lightdm-gtk-greeter [+1432.76s] DEBUG: Creating shared data directory /var/lib/lightdm/data/lightdm [+1432.76s] DEBUG: Session pid=2330: Logging to /var/log/lightdm/seat0-greeter.log [+1432.78s] DEBUG: Activating VT 8 [+1432.78s] DEBUG: Activating login1 session c4 [+1432.84s] DEBUG: Greeter connected version=1.18.2 resettable=false [+1433.35s] DEBUG: Greeter start authentication [+1433.35s] DEBUG: Session pid=2350: Started with service 'lightdm', username '(null)' [+1433.35s] DEBUG: Session pid=2350: Got 1 message(s) from PAM [+1433.35s] DEBUG: Prompt greeter with 1 message(s) [+1435.11s] DEBUG: Seat seat0 changes active session to 2 [+1435.11s] DEBUG: Activating session 2 -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 4.6.0-1-amd64 (SMP w/8 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages lightdm depends on: ii adduser 3.115 ii dbus 1.10.8-1 ii debconf [debconf-2.0] 1.5.59 ii libaudit1 1:2.6.1-1 ii libc6 2.22-13 ii libgcrypt20 1.7.1-2 ii libglib2.0-0 2.48.1-1 ii libpam-systemd 230-3 ii libpam0g 1.1.8-3.3 ii libxcb1 1.11.1-1 ii libxdmcp6 1:1.1.2-1.1 ii lightdm-gtk-greeter [lightdm-greeter] 2.0.1-2 Versions of packages lightdm recommends: ii xserver-xorg 1:7.7+15 Versions of packages lightdm suggests: ii accountsservice 0.6.40-3 ii upower 0.99.4-3 -- debconf information: * shared/default-x-display-manager: lightdm lightdm/daemon_name: /usr/sbin/lightdm
