I recently used Nautilus (from /usr/share/applications
as a double click on "File") to "make a link" for a desktop icon. This worked fine once I changed the permissions to executable. However when I installed sync stuff for rythmbox for iphone I noted in the terminal window a reference to Nautilus flash by. Not sure that is relevant but the desktop icon is no longer a filing cabinet and when executed it has lost its function as su. Also when run from terminal it functions as normal but with following messages. forgive me for I am but a newbie:
simon@Arthur:~$ sudo nautilus
[sudo] password for simon:
(nautilus:4921): Gtk-WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
wrestool: /vmlinuz: file contains no resources
(nautilus:4921): Gtk-CRITICAL **: gtk_widget_show: assertion 'GTK_IS_WIDGET (widget)' failed
(nautilus:4921): Gtk-CRITICAL **: gtk_spinner_start: assertion 'GTK_IS_SPINNER (spinner)' failed
(nautilus:4921): Gtk-CRITICAL **: gtk_widget_show: assertion 'GTK_IS_WIDGET (widget)' failed
(nautilus:4921): Gtk-CRITICAL **: gtk_spinner_start: assertion 'GTK_IS_SPINNER (spinner)' failed
(nautilus:4921): GLib-CRITICAL **: Source ID 120 was not found when attempting to remove it
(nautilus:4921): GLib-CRITICAL **: Source ID 121 was not found when attempting to remove it
(nautilus:4921): GLib-CRITICAL **: Source ID 122 was not found when attempting to remove it
.desktop
file, I'd open the original one and linked one and see ifExec
lines are different