Hi Thomas,
On 26.04.2015 06:20, Thomas Voß wrote: > Hey all, > > thanks for the great script, I will make sure that we fold the color > coding capabilities into the client executable of the location > service. > As far as I can see, "green" indicates that the snr exceeds a certain > threshold (11 in the awk script). While snr is an interesting value, > the more interesting information is "used_in_fix", "has_almanac_data" > and "has_ephimeris_data". Even if multiple satellites are visible > (with a sensible snr), only > those for which almanac and ephimeris data is known are considered for > calcucating the fix. http://en.wikipedia.org/wiki/Time_to_first_fix > provides a good overview. > > With that, green should probably refer to satellites that have > "used_in_fix" set to 1. > > The theoretical minimum for a first fix after cold start is 12.5 > minutes, which is rarely the case and ttf usually takes longer in cold > start scenarios. > We take multiple measures to minimize this time, but it seems like we > are experiencing issues in doing so. It would be really helpful if you > could provide the output of: > > sudo GLOG_v=1000 GLOG_logtostderr=1 ubuntu-location-serviced-cli > --bus system --test > > Feel free to share privately with me as the logs would reveal your > position. Source for the test is in [1]. > Please note that you should restart your device after the test has > been completed. Is there a way to directly talk to the location-service via D-Bus from within a confined app? And if yes, what would the calls look like? I tried dbus-send --print-reply --type=method_call --system --dest=com.ubuntu.location.Service /com/ubuntu/location/Service org.freedesktop.DBus.Introspectable.Introspect on the phone but it just gives me an empty list of methods to call. I have to say that I'm not that good with D-Bus though :/ kind regards, Simon -- Mailing list: https://launchpad.net/~ubuntu-phone Post to : ubuntu-phone@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-phone More help : https://help.launchpad.net/ListHelp
