Bug#895292: Restart, Suspend, Hibernate, Shut Down all greyed out in lightdm

[Vincent Lefevre]

On 2018-04-09 20:41:55 +0200, Michael Biebl wrote:
> Not reproducible with a default GNOME / systemd as init installation.
> 
> Please investigate, if this issue is specific to sysvinit, xfce or some
> other custom modification (like special kernel parameters)

I'd say that it is specific to sysvinit. I have two other machines
with similar configuration but with systemd as the init system instead
of sysvinit, and I haven't seen any such problem on them.

The only other major difference between my machines is that the one
with sysvinit uses the nouveau driver instead of the nvidia one for
the two other machines, but I doubt very much that this has an
influence.

I've also checked the logs at startup. With systemd 238 (for which the
problem occurs):

[...]
Apr  9 15:33:17 ypig dbus-daemon[2930]: [system] Activating service name='org.freedesktop.login1' requested by ':1.4' (uid=0 pid=2987 comm="/usr/sbin/lightdm ") (using servicehelper)
Apr  9 15:33:17 ypig dbus-daemon[2930]: [system] Activating service name='org.freedesktop.systemd1' requested by ':1.6' (uid=0 pid=3115 comm="/lib/systemd/systemd-logind ") (using servicehelper)
Apr  9 15:33:17 ypig dbus-daemon[2930]: [system] Successfully activated service 'org.freedesktop.login1'
Apr  9 15:33:18 ypig dbus-daemon[2930]: [system] Successfully activated service 'org.freedesktop.systemd1'
Apr  9 15:33:25 ypig dbus-daemon[2930]: [system] Activating service name='org.freedesktop.ConsoleKit' requested by ':1.9' (uid=0 pid=3287 comm="lightdm --session-child 17 20 ") (using servicehelper)
Apr  9 15:33:25 ypig dbus-daemon[2930]: [system] Activating service name='org.freedesktop.PolicyKit1' requested by ':1.12' (uid=0 pid=3291 comm="/usr/sbin/console-kit-daemon --no-daemon ") (using servicehelper)
Apr  9 15:33:25 ypig polkitd[3358]: started daemon version 0.105 using authority implementation `local' version `0.105'
Apr  9 15:33:25 ypig dbus-daemon[2930]: [system] Successfully activated service 'org.freedesktop.PolicyKit1'
Apr  9 15:33:25 ypig dbus-daemon[2930]: [system] Successfully activated service 'org.freedesktop.ConsoleKit'
Apr  9 15:33:27 ypig dbus-daemon[3376]: [session uid=124 pid=3374] Activating service name='org.a11y.Bus' requested by ':1.0' (uid=124 pid=3369 comm="/usr/sbin/lightdm-gtk-greeter ")
Apr  9 15:33:28 ypig dbus-daemon[3376]: [session uid=124 pid=3374] Successfully activated service 'org.a11y.Bus'
[...]

After downgrading to systemd 237:

[...]
Apr  9 15:45:28 ypig dbus-daemon[3024]: [system] Activating service name='org.freedesktop.login1' requested by ':1.2' (uid=0 pid=3059 comm="/usr/sbin/lightdm ") (using servicehelper)
Apr  9 15:45:28 ypig dbus-daemon[3024]: [system] Activating service name='org.freedesktop.systemd1' requested by ':1.4' (uid=0 pid=3131 comm="/lib/systemd/systemd-logind ") (using servicehelper)
Apr  9 15:45:28 ypig dbus-daemon[3024]: [system] Successfully activated service 'org.freedesktop.login1'
Apr  9 15:45:29 ypig dbus-daemon[3024]: [system] Successfully activated service 'org.freedesktop.systemd1'
Apr  9 15:45:40 ypig dbus-daemon[3315]: [session uid=124 pid=3313] Activating service name='org.a11y.Bus' requested by ':1.0' (uid=124 pid=3308 comm="/usr/sbin/lightdm-gtk-greeter ")
Apr  9 15:45:40 ypig dbus-daemon[3315]: [session uid=124 pid=3313] Successfully activated service 'org.a11y.Bus'
[...]

I assume that the ConsoleKit one can see with systemd 238 is a
fallback due to some issue with login1.

I could try again with systemd 238 and look at the lightdm debug
logs (I no longer have them right now since I rebooted twice) to
see if there's any error.

-- 
Vincent Lefèvre <vincent at 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)