I think I have found the solution of my problem with nm-applet.
1) I have edited /etc/sudoers with visudo adding (at the end of the text) the
two following lines :
%sudo ALL=(ALL) NOPASSWD: /usr/bin/dbus-launch
%sudo ALL=(ALL) NOPASSWD: /usr/bin/nm-applet
2) I have edited file /etc/xdg/autostart/nm-applet
replacing line Exec=dbus-launch nm-applet with line Exec=sudo dbus-launch
nm-applet
After a system restart and text mode login and the command "dbus-launch
startxfce4" was issued: the nm-applet icon behaved as expected, without
any disabled button.
The nm-applet seems also to be working flawlessly when the session is
started simply with command "startxfce4".
I must confess I do not understand exactly which is the difference between
"dbus-launch startxfce4" and "startxfce4" or
between "dbus-launch nm-applet" and "nm-applet". Everything seems to be the
same, even if I am sure that ... it is not quite the same !
I have not yet checked that everything works as expected, when
connecting to wireless networks. I will do that in the next few days.
Alessandro Volpi
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https://bugs.launchpad.net/bugs/1422375
Title:
If the xfce session is started as a regular user, the nm-applet
buttons are greyed out and cannot be used
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