Problems with policykit and printer-applet

Duncan Young duncan.young at
Mon Feb 15 03:24:38 UTC 2010

Hi all,

I'm currently trying to resolve an ongoing issue I have with printer-applet refusing to run for me.

The output from running it on the command line is as follows.

% printer-applet
printer-applet(10724) KLocalePrivate::initEncoding: Cannot resolve system encoding, defaulting to ISO 8859-1.QEventDispatcherUNIX::unregisterTimer: invalid argument
Traceback (most recent call last):
  File "/usr/local/kde4/bin/printer-applet", line 1161, in <module>
    applet = JobManager()
  File "/usr/local/kde4/bin/printer-applet", line 297, in __init__
    notification = NewPrinterNotification(bus, self)
  File "/usr/local/kde4/bin/printer-applet", line 1050, in __init__
    bus_name = dbus.service.BusName (PDS_OBJ, bus=bus)
  File "/usr/local/lib/python2.6/site-packages/dbus/", line 129, in __new__
    retval = bus.request_name(name, name_flags)
  File "/usr/local/lib/python2.6/site-packages/dbus/", line 306, in request_name
    'su', (name, flags))
  File "/usr/local/lib/python2.6/site-packages/dbus/", line 622, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.AccessDenied: Connection ":1.44" is not allowed to own the service "com.redhat.NewPrinterNotification" due to security policies in the configuration file

I'm running FreeBSD 8.0-RELEASE-p2 on amd64 an have a fairly up to date set of ports. i.e. kdebase-4.3.5 and kdeutils-printer-applet-4.3.5_2.

I believe the problem is due to policykit settings, but I must admit I'm not up on how to modify the config files.

I believe the relevant file is /usr/local/etc/dbus-1/system.d/newprinternotification.conf.

cat <!DOCTYPE busconfig PUBLIC
 "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
        <policy at_console="true">
                <allow own="com.redhat.NewPrinterNotification"/>

        <policy user="root">
                <allow own="com.redhat.NewPrinterNotification"/>

        <policy user="root">
                <allow send_destination="com.redhat.NewPrinterNotification"

        <policy context="default">
                <deny own="com.redhat.NewPrinterNotification"/>

                <deny send_destination="com.redhat.NewPrinterNotification"

Any help would be greatly appreciated


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