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I have a clean install of Ubuntu 14.04 in which the "Shutdown" and "Restart" button's bring up the "Shutdown/Restart" dialog but upon clicking one of these options, does nothing. By nothing I mean, there is not even feedback from the UI that I've clicked the button until I move my mouse. After clicking either button, the dialog box remains open until I move my mouse at which time the dialog box is closed.

Steps attempted so far to troubleshoot:

  • Install ConsoleKit

  • Added the following to /etc/pam.d/common-auth:

    session optional pam_loginuid.so

Running:

sudo reboot

and

sudo shutdown -hP now

work as expected

I suspect the issue is related to ConsoleKit but I am not familiar enough with it or the process used for the Shutdown/Restart buttons in Unity to debug further. I have also tried tailing /var/log/* while attempting to shutdown and this came up empty.

EDIT:

It's come to my attention that Ubuntu uses dbus to facilitate the shutdown/restart functions from the menu. As such, I've enabled dbus debugging and HERE IS THE OUTPUT OF:

sudo dbus-monitor --system

Could use some help making sense of it, though I'll continue trying to do so myself.

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1 Answer 1

Reset to default
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Figured it out. The solution was the following line missing from /etc/pam.d/common-session:

session    optional    pam_systemd.so

I can only assume that this line was added to common-session in a recent update and, because my pam files are managed via puppet, I had yet to reflect this on the template puppet was deploying.

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