On 2018-04-10 12:45:51 +0200, Michael Biebl wrote: > Do you use hidepid for /proc?
No, I don't. > > Apr 9 15:33:25 ypig dbus-daemon[2930]: [system] Successfully activated > > service 'org.freedesktop.ConsoleKit' > > Please uninstall/purge consolekit. It's not only useless when logind is > used, but actively harmful: > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=888892 Done. But this doesn't solve the problem. I get in /var/log/syslog: [...] Apr 10 15:06:46 ypig dbus-daemon[2968]: [system] Activating service name='org.freedesktop.login1' requested by ':1.4' (uid=0 pid=3014 comm="/usr/sbin/lightdm ") (using servicehelper) Apr 10 15:06:47 ypig dbus-daemon[2968]: [system] Activating service name='org.freedesktop.systemd1' requested by ':1.5' (uid=0 pid=3160 comm="/lib/systemd/systemd-logind ") (using servicehelper) Apr 10 15:06:47 ypig dbus-daemon[2968]: [system] Successfully activated service 'org.freedesktop.login1' Apr 10 15:06:47 ypig dbus-daemon[2968]: [system] Successfully activated service 'org.freedesktop.systemd1' Apr 10 15:06:59 ypig dbus-daemon[3338]: [session uid=124 pid=3336] Activating service name='org.a11y.Bus' requested by ':1.0' (uid=124 pid=3324 comm="/usr/sbin/lightdm-gtk-greeter ") Apr 10 15:06:59 ypig dbus-daemon[3338]: [session uid=124 pid=3336] Successfully activated service 'org.a11y.Bus' Apr 10 15:07:08 ypig dbus-daemon[2968]: [system] Activating service name='org.freedesktop.PolicyKit1' requested by ':1.5' (uid=0 pid=3160 comm="/lib/systemd/systemd-logind ") (using servicehelper) Apr 10 15:07:08 ypig polkitd[3361]: started daemon version 0.105 using authority implementation `local' version `0.105' Apr 10 15:07:08 ypig dbus-daemon[2968]: [system] Successfully activated service 'org.freedesktop.PolicyKit1' The lightdm.log diff: ypig:~> logdiff -u lightdm.log-237 lightdm.log-238 [... identical lines except pid's ...] DEBUG: Activating VT 7 -DEBUG: Activating login1 session c1 -DEBUG: Seat seat0 changes active session to c1 -DEBUG: Session c1 is already active DEBUG: Greeter connected version=1.18.3 resettable=false [... identical lines except pid's ...] In seat0-greeter.log for systemd 237, I have: ** Message: 15:24:55.160: Starting lightdm-gtk-greeter 2.0.4 (Feb 21 2018, 10:34:28) ** Message: 15:24:55.247: [Configuration] Reading file: /usr/share/lightdm/lightdm-gtk-greeter.conf.d/01_debian.conf ** Message: 15:24:55.255: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf ** (lightdm-gtk-greeter:3321): WARNING **: 15:24:57.408: [PIDs] Failed to execute command: upstart [...] In seat0-greeter.log for systemd 238, I have: ** (process:3321): WARNING **: 15:06:56.930: Failed to open CK session: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.ConsoleKit was not provided by any .service files ** Message: 15:06:58.135: Starting lightdm-gtk-greeter 2.0.4 (Feb 21 2018, 10:34:28) ** Message: 15:06:58.206: [Configuration] Reading file: /usr/share/lightdm/lightdm-gtk-greeter.conf.d/01_debian.conf ** Message: 15:06:58.214: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf libGL error: failed to open drm device: Permission denied libGL error: failed to load driver: nouveau ** (lightdm-gtk-greeter:3324): WARNING **: 15:07:00.342: [PIDs] Failed to execute command: upstart [...] So, it seems that with systemd 238, the login1 session is not activated (and as a consequence, it tries to open a CK session, which does not work, but this is not the issue here). -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)