Version:           unspecified (using KDE 4.8.0) 
OS:                Linux

I am running 3 seat multiseat configuration. On the 2nd and 3rd seat when running apper to update the system, apper never pops up the dialog to select user and provide password to update the system. Instead when I select to update the system, I get error dialog which says

You have failed to provide correct authentication. Please check any password and account settings. 

When I click on Details I see

Failed to obtain authentication.

I console i see

$ apper 
enumFromString ( Group ) : converted "unknown" to "UnknownGroup" , enum id 1 
enumFromString ( UpdateState ) : converted "unknown" to "UnknownUpdateState" , enum id 2 
enumFromString ( UpdateState ) : converted "unknown" to "UnknownUpdateState" , enum id 2 
enumFromString ( UpdateState ) : converted "unknown" to "UnknownUpdateState" , enum id 2 
enumFromString ( Role ) : converted "unknown" to "UnknownRole" , enum id 0 



Reproducible: Always

Steps to Reproduce:
On multiseat system run apper on seat 2 or 3 and try to update the system

Actual Results:  
It is impossible to update the system from apper because there is no way to provide authentication.

Expected Results:  
I should be able to update the system from any seat.

It is possible to update the system from console by running 

sudo apt-get upgrade

since it asks for my password just fine. It seems the issue is with the component asking for the authorization.