Comment 8 for bug 417824

Those commands dont time out , as per Martin Pitt's suggestion to run dbus-monitor --system, i'm attaching the log.
I'v done the following steps:
$ killall gnome-power-manager
$ dbus-monitor --system 2>&1 | tee dbus-monitor.log.txt
$ gnome-power-manager --verbose --no-daemon 2>&1 | tee gpm.debug.log.txt

the gpm debug keeps repeating these 2 lines :

(gnome-power-manager:31208): devkit-power-gobject-WARNING **: Couldn't enumerate devices: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

(gnome-power-manager:31208): devkit-power-gobject-WARNING **: Error invoking GetAll() to get properties: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

Attaching the dbus-monitor output.