A little bug, Shutdown menu doesn't work in Unity Greeter

[Hammer Attila]

Hy,

Possible everybody already known, Unity Greeter presenting awailable 
indicators in the login screen.
If an user press F10 key, land the devicemenu indicator, with usual have 
following menu items:
1. Suspend.
2. Shut down.

I found a little bug, with I don't no what the proper component with 
need reporting:
If an user press ENTER key the shut down menu item, nothing happening, 
the machine is not shutdown, suspend works right. The user this 
situation land back the Unity Greeter screen.
Why happening this issue?
The answer is very simple, because the Lightdm user not setted with 
com.canonical.indicator.session suppress-logout-restart-shutdown 
GSettings key with true value.
This GSettings key determining if an user choosing the devicemenu 
indicator with shutdown, restart or logout menu items, happening a 
confirmation dialog presenting or not before happening the real 
operation. If this GSettings value is false, the confirmation dialog is 
presenting, but this is not happening in Unity Greeter.
You easy to verify this value with LightDm user with following commands, 
and possible changing temporary with this setting to true value if you 
want work the shutdown menu item in Unity Greeter until this bug is not 
fixed:
1. Verify actual value in terminal with following command:
sudo -u lightdm dbus-launch --exit-with-session gsettings get 
com.canonical.indicator.session suppress-logout-restart-shutdown
If the returned value is false, do next step.
2. Setting the required true value to work shutdown menu in Unity Greeter:
sudo -u lightdm dbus-launch --exit-with-session gsettings set 
com.canonical.indicator.session suppress-logout-restart-shutdown true
3. If you want, do the first step to verify the change is happened right.
After this, you need logging out if you want testing the new change. My 
machine if I click shutdown menu, the system shutdowning right in Unity 
Greeter too.

Attila