Sorry for my poor English.
There is a way to view Satellite information.
https://wiki.ubuntu.com/Process/Merges/TestPlan/location-
service#Forensics
Execute this command in terminal
ubuntu-location-serviced-cli --bus system --get --property
visible_space_vehicles
Visible space vehicles:
This works for me: (you need sox installed. $sudo aptitude install sox)
To sound when you logout, put this code in /etc/gdm/PostSession/Default:
#!/bin/sh
sleep 1
nohup play /usr/share/sounds/ubuntu/stereo/desktop-logout.ogg &
exit 0
It doesn't work without sleep 1, because the session closes to