@mecho

In regard to your very first post #1,
I believe the 'org.freedesktop' messages are related
to what are called a PolicyKit errors. See Wikipedia.

I've run across these in the context of PCManFM and Network Manager.
I believe they represent a 'notification' about a user going
beyond his 'authorization' to do something, like 'sudo' or
'iwconfig' or something like that.

How you adjust or adjust-to these notifications I haven't
found out yet, but it may be the 'coming thing'. I hope it won't
be as bothersome as SElinux.

Let us know if you figure it all out.