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phablet@ubuntu-phablet:~$ ubuntu-location-serviced-cli --bus system --get --property visible_space_vehicles
Visible space vehicles:(type: gps, prn: 8, snr: 25, has_almanac_data: 0, has_ephimeris_data: 0, used_in_fix: 0, azimuth: 0 deg, elevation: 0 deg) (type: gps, prn: 16, snr: 21, has_almanac_data: 0, has_ephimeris_data: 0, used_in_fix: 0, azimuth: 0 deg, elevation: 0 deg) (type: gps, prn: 26, snr: 28, has_almanac_data: 0, has_ephimeris_data: 0, used_in_fix: 0, azimuth: 0 deg, elevation: 0 deg) (type: gps, prn: 27, snr: 21, has_almanac_data: 0, has_ephimeris_data: 0, used_in_fix: 0, azimuth: 0 deg, elevation: 0 deg) Attempted to unregister path (path[0] = com path[1] = ubuntu) which isn't registered
not sure what all those zeros are, or if the location it is giving to unav is from the satellites or cell towers. it appears that ubuntu-location-serviced-cli can do a bit of querying of the service, but it won't wake things up by itself, you have to run a full navigation app to do that - and it has to be subscribing to updates, just refreshing something like http://www.where-am-i.net/ does nothing, just returns a cached location every time.
so, ubuntu-location-serviced-cli can be used to see if the GPS is doing anything, but it appears there is no "wake up and get a fix" command. It seems that the computer side of things is basically suspended when the screen is off and there isn't an active ssh session to it - I thought the phone was "on" because it can receive calls, but it is more like a suspended laptop I think. This means that the GPS is off when you are walking or cycling about when it has a good view of the sky, so if you tend to use the phone when in a building or vehicle you are using the phone in a poor environment for GPS - and as it does nothing during the good opportunity to get a fix this means you get really bad cached positions.
The goodish news is that the HERE maps triangulation is really quite effective, to the point it can be confused with a proper GPS location.
Alan. On 08/04/16 19:36, Rodney Dawes wrote:
It has a dbus service API, yes. However, it is not a dbus activated service, and I think does not install a .service file. It is instead started by the init system, and runs on the system bus. "sudo start ubuntu-location-service" should start it. On Fri, 2016-04-08 at 13:24 +0100, Alan Bell wrote:$ ubuntu-location-serviced-cli --bus=session --property=is_online -- get Attempted to unregister path (path[0] = com path[1] = ubuntu) which isn't registered Location service is Problem executing the CLI: org.freedesktop.DBus.Error.ServiceUnknown: The name com.ubuntu.location.Service was not provided by any .service files huh? $ ls /usr/share/dbus-1/services/com.ubuntu.* /usr/share/dbus-1/services/com.ubuntu.content.dbus.Service.service /usr/share/dbus-1/services/com.ubuntu.OnlineAccountsUi.service /usr/share/dbus-1/services/com.ubuntu.OnlineAccounts.Manager.service if there is no dbus api to location services and ubuntu-location-serviced-cli is broken then is there any other command line that I can put in crontab to wake the lazy thing up and get it to do it's job? Alan.
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