HAL powermanager exception on Arch Linux

[Andrew Williams]

Attains auth, but then fails due to access. polkit-gnome-authorization applet shows the entry intermittently, depending on where it's executed.

[nikdoof@vektor oblogout]$ ./oblogout-dev.sh
2009-03-29 20:34:12,134 - OpenboxLogout - DEBUG - Shortcut Options: [('suspend', 'U'), ('lock', 'K'), ('hibernate', 'H'), ('logout', 'L'), ('shutdown', 'S'), ('cancel', 'Escape'), ('restart', 'R')]
2009-03-29 20:34:12,153 - OpenboxLogout - DEBUG - Validated Button List: ['cancel', 'logout', 'restart', 'shutdown', 'suspend', 'lock']
2009-03-29 20:34:12,161 - OpenboxLogout - DEBUG - Screen supports alpha channels!
2009-03-29 20:34:13,778 - DbusController - DEBUG - Checking permissions for org.freedesktop.hal.power-management.reboot-multiple-sessions
2009-03-29 20:34:13,831 - DbusController - DEBUG - Not authorised to use, requires auth_admin
2009-03-29 20:34:13,831 - DbusController - DEBUG - Attempting to obtain org.freedesktop.hal.power-management.reboot-multiple-sessions
2009-03-29 20:34:16,057 - DbusController - DEBUG - Result: True
2009-03-29 20:34:16,058 - DbusController - DEBUG - Rebooting...
Traceback (most recent call last):
  File "/home/nikdoof/dev/oblogout/oblogout/oblogout.py", line 344, in click_button
    self.dbus.restart()
  File "/home/nikdoof/dev/oblogout/oblogout/dbushandler.py", line 145, in restart
    return self._halpm.Reboot()
  File "/usr/lib/python2.6/site-packages/dbus/proxies.py", line 68, in __call__
    return self._proxy_method(*args, **keywords)
  File "/usr/lib/python2.6/site-packages/dbus/proxies.py", line 140, in __call__
    **keywords)
  File "/usr/lib/python2.6/site-packages/dbus/connection.py", line 622, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.Hal.Device.PermissionDeniedByPolicy: org.freedesktop.hal.power-management.reboot-multiple-sessions auth_admin <-- (action, result)