Nexus 5 GPS does not work
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Thanks. I made some progress: After waiting a few minutes test_gps did something (and repeatetly does this now without delay):
phablet@ubuntu-phablet:~$ sudo test_gps [sudo] password for phablet: *** setup signal handler *** get gps interface *** device info id = gps name = loc_api GPS Module author = Qualcomm USA, Inc. *** init gps interface ** Creating thread: 'Loc_hal_worker' (start=0xb6aec7c5, arg=0x55c88) ** After thread_create: 'Loc_hal_worker', error=0 (start=0xb6aec7c5, arg=0x55c88) **** Thread wrapper start (start=0xb6aec7c5, arg=0x55c88) **** Diag_LSM_Init: Failed to open handle to diag driver, error = 2*** setting positioning mode *** start gps track *** gps tracking started *** tracking.... *** status callback *** session begin *** set capabilities capability is 00000007 *** status callback *** engine on *** status callback *** session begin *** sv status sv_size: 0 num_svs: 19 azimuth: 246.000000 elevation: 28.000000 prn: 25 size: 660 snr: 19.100000 azimuth: 0.000000 elevation: 0.000000 prn: 1 size: 660 snr: 0.000000 azimuth: 129.000000 elevation: 1.000000 prn: 2 size: 660 snr: 0.000000 azimuth: 101.000000 elevation: 8.000000 prn: 6 size: 660 snr: 0.000000 azimuth: 274.000000 elevation: 9.000000 prn: 10 size: 660 snr: 0.000000 azimuth: 243.000000 elevation: 60.000000 prn: 12 size: 660 snr: 0.000000 azimuth: 0.000000 elevation: 0.000000 prn: 13 size: 660 snr: 0.000000 azimuth: 324.000000 elevation: 5.000000 prn: 14 size: 660 snr: 0.000000 azimuth: 180.000000 elevation: 15.000000 prn: 15 size: 660 snr: 0.000000 azimuth: 84.000000 elevation: 16.000000 prn: 74 size: 0 snr: 0.000000 azimuth: 277.000000 elevation: 39.000000 prn: 66 size: 0 snr: 0.000000 azimuth: 157.000000 elevation: 4.000000 prn: 86 size: 0 snr: 0.000000 azimuth: 0.000000 elevation: 0.000000 prn: 77 size: 0 snr: 0.000000 azimuth: 291.000000 elevation: 45.000000 prn: 76 size: 0 snr: 0.000000 azimuth: 42.000000 elevation: 68.000000 prn: 75 size: 0 snr: 0.000000 azimuth: 212.000000 elevation: 11.000000 prn: 65 size: 0 snr: 0.000000 azimuth: 39.000000 elevation: 31.000000 prn: 84 size: 0 snr: 0.000000 azimuth: 112.000000 elevation: 37.000000 prn: 85 size: 0 snr: 0.000000 azimuth: 334.000000 elevation: 19.000000 prn: 67 size: 0 snr: 0.000000 *** nmea info timestamp: 312476364 nmea (63): $GPGSV,3,1,09,25,28,246,19,01,00,000,,02,01,129,,06,08,101,*71 *** nmea info timestamp: 312476364 nmea (61): $GPGSV,3,2,09,10,09,274,,12,60,243,,13,00,000,,14,05,324,*7F *** nmea info timestamp: 312476365 nmea (28): $GPGSV,3,3,09,15,15,180,*49 *** nmea info timestamp: 312476365 nmea (61): $GLGSV,3,1,10,74,16,084,,66,39,277,,86,04,157,,77,00,000,*6F *** nmea info timestamp: 312476365 nmea (61): $GLGSV,3,2,10,76,45,291,,75,68,042,,65,11,212,,84,31,039,*63 *** nmea info timestamp: 312476366 nmea (39): $GLGSV,3,3,10,85,37,112,,67,19,334,*62 *** sv status sv_size: 0 num_svs: 21However, Mapping apps (uNav, google maps in morph) do not work. They do not find a position at all. I tried both with 20 minutes waiting time. Nothing happens. Both, uNav and morph, have permission to access gps.
Any idea?
Thanks! -
If it's like the FP2, a lot of steps have to be carefully followed. Activate localization, cellular and wifi, plug in the charge cable. I use Pure maps, but I guess the same goes for the rest. Then, use UT tweak tool to prevent your navigating app from interrupting. Then make sure your display is set to never lock. Then start the app and launch a navigation query (on pure maps it displays a sort of wheel until it found the place you're looking for) . Put the phone to rest next to a window. Wait and pray the voodoo gods. It should take about half an hour, but it's very variable. Then, as soon as it's found, you're good to go. Never restart your phone, though, oor you have to start it all over again.I'd advise against using flight mode, too.
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@danlin If you do not see longitude/latitude values in test_gps then you are not synced. Either bad reception, GPS antenna bad or you are indoor
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This information you are seeing means:
num_svs: 21 => 21 satellites were seen so far
prn: 75
size: 0
snr: 0.000000
azimuth: 212.000000
elevation: 11.000000 => position of the satellite. SNR is 0 means this entry is not validTo me it looks you have a very weak signal. You might never get a lock with this. So for me thats a hardware or location issue. Ubuntu Touch, as I said, is fine, on N5 as well as other devices, so we cannot do much for you
- and it makes no sense to start an app when test_gps is failing... -
@Flohack I tested indeed indoors - I'll check if outdoors works better.
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@danlin said in Nexus 5 GPS does not work:
I'll check if outdoors works better.
Obviously it'll work better outdoor...
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@danlin Ok how you would think that GPS works indoors? Just curious...
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GPS satellites transmit low-power radio signals on two carrier frequencies designated as L1 and L2. The L1 carrier is 1575.42 MHz, and the L2 carrier is 1227.60 MHz in the ultrahigh frequency (UHF) band. GPS is a line-of-sight (LOS) system, and thus the signals can penetrate clouds, glass, and plastic but will not go through most solid objects, such as buildings and dense foliage.
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@Flohack said in Nexus 5 GPS does not work:
@danlin Ok how you would think that GPS works indoors? Just curious...
Most people know very little about technics and sure he though that if mobile data works indoor then GPS would.
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May be it is only the antenna like explained here:
https://gabgagnon.ca/comment-regler-le-probleme-de-gps-du-nexus-5/
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