Package: lightdm Version: 1.16.6-1 Severity: normal Sometimes, about once a month, lightdm fails to start on boot and I see just the console. I had a closer this time, those are the logs:
$ journalctl -b -1 -u lightdm -- Logs begin at Mo 2015-07-27 19:58:37 CEST, end at Mo 2016-02-15 09:09:43 CET. -- Feb 15 09:06:58 zombie systemd[1]: Starting Light Display Manager... Feb 15 09:06:58 zombie systemd[1]: Started Light Display Manager. Feb 15 09:06:58 zombie lightdm[4635]: ** (lightdm:4635): CRITICAL **: session_get_login1_session_id: assertion 'session != NULL' failed Feb 15 09:06:59 zombie lightdm[4665]: pam_unix(lightdm-greeter:session): session opened for user lightdm by (uid=0) Feb 15 09:07:05 zombie systemd[1]: lightdm.service: Main process exited, code=exited, status=1/FAILURE Feb 15 09:07:05 zombie systemd[1]: Stopped Light Display Manager. Feb 15 09:07:05 zombie systemd[1]: lightdm.service: Unit entered failed state. Feb 15 09:07:05 zombie systemd[1]: lightdm.service: Failed with result 'exit-code'. Feb 15 09:07:05 zombie systemd[1]: lightdm.service: Service hold-off time over, scheduling restart. Feb 15 09:07:05 zombie systemd[1]: lightdm.service: Failed to schedule restart job: Transaction is destructive. Feb 15 09:07:05 zombie systemd[1]: lightdm.service: Unit entered failed state. Feb 15 09:07:05 zombie systemd[1]: lightdm.service: Failed with result 'resources'. And some context around the error message: Feb 15 09:06:58 zombie systemd[1]: Starting Accounts Service... Feb 15 09:06:58 zombie console-kit-daemon[3928]: (process:4649): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed Feb 15 09:06:58 zombie console-kit-daemon[3928]: (process:4655): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed Feb 15 09:06:58 zombie console-kit-daemon[3928]: (process:4656): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed Feb 15 09:06:58 zombie accounts-daemon[4643]: started daemon version 0.6.40 Feb 15 09:06:58 zombie dbus[1908]: [system] Successfully activated service 'org.freedesktop.Accounts' Feb 15 09:06:58 zombie systemd[1]: Started Accounts Service. Feb 15 09:06:58 zombie lightdm[4635]: ** (lightdm:4635): CRITICAL **: session_get_login1_session_id: assertion 'session != NULL' failed Feb 15 09:06:59 zombie lightdm[4665]: pam_unix(lightdm-greeter:session): session opened for user lightdm by (uid=0) Feb 15 09:06:59 zombie systemd[1]: Created slice User Slice of lightdm. Feb 15 09:06:59 zombie systemd[1]: lvm2-lvmpolld.socket: Cannot add dependency job, ignoring: Unit lvm2-lvmpolld.socket is masked. Feb 15 09:06:59 zombie systemd[1]: lvm2-lvmetad.socket: Cannot add dependency job, ignoring: Unit lvm2-lvmetad.socket is masked. Feb 15 09:06:59 zombie systemd[1]: lvm2-monitor.service: Cannot add dependency job, ignoring: Unit lvm2-monitor.service is masked. Feb 15 09:06:59 zombie systemd[1]: Starting User Manager for UID 160... Feb 15 09:06:59 zombie systemd-logind[3902]: New session c1 of user lightdm. Feb 15 09:06:59 zombie systemd[1]: Started Session c1 of user lightdm. Feb 15 09:06:59 zombie systemd[4668]: pam_unix(systemd-user:session): session opened for user lightdm by (uid=0) Also note that this comes quite late, I was logged on console in by that time. Regards, Eduard. -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.4.0+ (SMP w/4 CPU cores; PREEMPT) Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Init: sysvinit (via /sbin/init) Versions of packages lightdm depends on: ii adduser 3.113+nmu3 ii consolekit 0.4.6-5 ii dbus 1.10.6-1 ii debconf [debconf-2.0] 1.5.58 ii libaudit1 1:2.4.5-1 ii libc6 2.21-7 ii libgcrypt20 1.6.4-5 ii libglib2.0-0 2.46.2-3 ii libpam-systemd 228-4+b1 ii libpam0g 1.1.8-3.2 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+13 Versions of packages lightdm suggests: ii accountsservice 0.6.40-3 ii upower 0.99.3-1+b2 -- debconf information: lightdm/daemon_name: /usr/sbin/lightdm * shared/default-x-display-manager: lightdm -- * Joey <-- Nichtrechnenkenn * Joey <-- Nichttippenkann * Joey <-- Nichtrechnenkann * Alfie <-- fortunestippenkann _______________________________________________ Pkg-xfce-devel mailing list Pkg-xfce-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-xfce-devel