GPS Signal Lost in IGO when not in focus - MTCB Android Head Units Q&A

Anyone else have an issue with IGO, that when I switch to desktop or another app, after a few seconds i hear "GPS Signal Lost"
Its rather quick to re-establish a connection when i switch back but seems weird to not get a signal only because its not in focus.
While in focus its rock solid, never drops out.
Setting or known issue?

Always, but I've been got used and don't care...

Snap. Always does it.
Sent from my Hudl 2 using Tapatalk

It has to be an Android issue I had a Pioneer Navi unit (they use iGO) never lost signal once locked in, well as long as I didn't go in to a tunnel or parking structure, switched to Android and every time I look away it drops GPS but only for a second or two. I believe there is an advanced audio setting to mute the announcement of GPS signal loss, but I cannot remember if it's a GUI option or if it needs to be put in the sys.txt.

Try this settings in SYS.TXT:
[sound.announcer]
gps_signal_lost = 0; disables voicemail alert "lost signal GPS"
gps_disconnected = 0; disables voice notification "GPS turned off"

themissionimpossible said:
Try this settings in SYS.TXT:
[sound.announcer]
gps_signal_lost = 0; disables voicemail alert "lost signal GPS"
gps_disconnected = 0; disables voice notification "GPS turned off"
Click to expand...
Click to collapse
That may be a viable option, when its in focus i never loose signal....so really its just the voice announcement that annoys me when i switch to another App.

I used to use an app called active GPS, can be set to acquire a gps lock and keep it on boot, not sure if you are really losing the gps lock or if Igo just thinks it is.

jakejm79 said:
I used to use an app called active GPS, can be set to acquire a gps lock and keep it on boot, not sure if you are really losing the gps lock or if Igo just thinks it is.
Click to expand...
Click to collapse
Im not losing signal no......Its approx 5 seconds after IGO loses focus and it regains the signal immediately after i switch back.
Perhaps this is intentional to allow another App access to the GPS Signal.....ie only 1 App can have access at once, so they only keep it during focus?
Not sure but its peeing me off
Ill check if theres anything buried in IGO settings or the alternative (Not that i like working around a problem) is to quieten the "Lost signal" audio.

pants001 said:
Perhaps this is intentional to allow another App access to the GPS Signal.....ie only 1 App can have access at once, so they only keep it during focus?
Click to expand...
Click to collapse
Do you also have a weather widget running with its location based on GPS signal?
Maybe that app requires a temporary connection to the GPS port (that might not be shareable between more apps)...

themissionimpossible said:
Do you also have a weather widget running with its location based on GPS signal?
Maybe that app requires a temporary connection to the GPS port (that might not be shareable between more apps)...
Click to expand...
Click to collapse
Ye possible, I also noticed a setting in GPS menu to allow location based services. So might try with that off.
I'll have a play around and report back. :silly:

pants001 said:
Ye possible, I also noticed a setting in GPS menu to allow location based services. So might try with that off.
I'll have a play around and report back. :silly:
Click to expand...
Click to collapse
In Android there is no problem for multiple applications to use GPS signal at the same time. You can run 5 navigation apps and another 5 tracking apps at the same time if you have enough RAM. The OS access the GPS sensor and shares the information to apps.
The question is, what really happens. If you continue with iGo in the background, is it still navigating you? Do you hear the correct voice commands or is it really lost and has no idea where you are?
For me all Navigation application work even in background. They have a service (identified by an icon in notification bar) that runs even if the main app is in background. You should also check the GPS icon in navigation bar to see if GPS is shut down.

javlada said:
In Android there is no problem for multiple applications to use GPS signal at the same time..
Click to expand...
Click to collapse
I'm not completely sure about the following, but IMHO there is a difference between the smartphones and the MTCB head units for which regards the GPS receiver.
In fact, while generally in a smartphone processor (ex. Qualcomm) the GPS receiver is included in the chip itself, AFAIK in a Rockchip processor (ex. RK3188) the GPS chip is not present, but should be externally connected to the system through an internal serial connection (USB?) and managed by the MCU: for this reason there might be some sharing problems among apps, problems not occurring on a smartphone integrated architecture.

javlada said:
The question is, what really happens. If you continue with iGo in the background, is it still navigating you? Do you hear the correct voice commands or is it really lost and has no idea where you are?
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Click to collapse
Ye thats interesting coz this morning i had to go somewhere and used navigation as apposed to just having IGO open on Map.
When Navigating to a destination, you can swap to desktop and other apps and it still guides you with no Lost Signal being mention.
So its only when you have maps open, not using a route navigation and you put IGO into the background.
I assume its IGO giving up the lock on the signal for some reason.

Same issue. IGO drops GPS when focus is lost.
pants001 said:
Ye possible, I also noticed a setting in GPS menu to allow location based services. So might try with that off.
I'll have a play around and report back. :silly:
Click to expand...
Click to collapse
I just installed a new head unit 4.4.2 and I have the same issue with IGO. I will try a few things and see what I can find as well.
Will report back if I solve it. It is bloody annoying. I am positive it is an Android thing, not an IGO issue.

pants001 said:
Ye thats interesting coz this morning i had to go somewhere and used navigation as apposed to just having IGO open on Map.
When Navigating to a destination, you can swap to desktop and other apps and it still guides you with no Lost Signal being mention.
So its only when you have maps open, not using a route navigation and you put IGO into the background.
I assume its IGO giving up the lock on the signal for some reason.
Click to expand...
Click to collapse
That would make sense, it would be a battery saving feature, no need for a persistent GPS lock (that sucks battery life) if you are just following your location on a map (when the map isn't in focus anymore) but when navigating you want the persistent lock so you can continue receiving directions regardless of what app has focus. I suspect a lot of GPS apps act this way, they just don't announce it.

jakejm79 said:
That would make sense, it would be a battery saving feature, no need for a persistent GPS lock (that sucks battery life) if you are just following your location on a map (when the map isn't in focus anymore) but when navigating you want the persistent lock so you can continue receiving directions regardless of what app has focus. I suspect a lot of GPS apps act this way, they just don't announce it.
Click to expand...
Click to collapse
I think your right!

pants001 said:
I think your right!
Click to expand...
Click to collapse
Possibly
Google maps acts that way, with maps open, if you open another app, the GPS icon disappears on my phone, but comes back as soon as I refocus on maps, but if I am navigating somewhere then the icon stays there.

Not that it offers you any help but my gps icon is on all the time regardless of what app is or isn't running.
If the above theory is correct then your answer may lie in the power saving and lox location settings.
Sent from my SM-G920F using Tapatalk
---------- Post added at 06:27 AM ---------- Previous post was at 06:26 AM ----------
Lox is a typo!
Sent from my SM-G920F using Tapatalk

jakejm79 said:
I suspect a lot of GPS apps act this way, they just don't announce it.
Click to expand...
Click to collapse
But on a smartphone this battery saving behavior doesn't happen...
And on a HU there is no battery at all and no battery saving needs, on Android all apps should be able to detect if the device is on battery power or currently external power supplied...

themissionimpossible said:
But on a smartphone this battery saving behavior doesn't happen...
And on a HU there is no battery at all and no battery saving needs, on Android all apps should be able to detect if the device is on battery power or currently external power supplied...
Click to expand...
Click to collapse
It does happen, test for yourself, but the battery will drain quicker with Maps open and an active GPS lock rather than when another app is in focus and no GPS lock, that is also why the mode to not use active GPS is called battery saving.
Take that up with the developer, but I doubt they will build in an option that is only useful to a very small number of users.
Personally I don't understand why you need the map window open if you aren't actively navigating somewhere anyway.

Related

GPS Compass really messed up!

I am really concerned about the GPS compass issue (not the magnetic one). It makes navigation applications like NDrive and Sygic unusable. While I am driving the nav app would suddenly recalculate the route on a different road then a few seconds later it comes back to my actual location, and it keeps doing that even if u are not moving.
This is really irritating, do any of u face a similar issue? Do u think its a hardware or a software problem?
mbushnaq00 said:
I am really concerned about the GPS compass issue (not the magnetic one). It makes navigation applications like NDrive and Sygic unusable. While I am driving the nav app would suddenly recalculate the route on a different road then a few seconds later it comes back to my actual location, and it keeps doing that even if u are not moving.
This is really irritating, do any of u face a similar issue? Do u think its a hardware or a software problem?
Click to expand...
Click to collapse
Install GPS status from market and clear agps data. Worked for me !
Sent from my HTC One X using xda premium
matmar said:
Install GPS status from market and clear agps data. Worked for me !
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
Can you please provide me with the market link, I really would appreciate it
EDIT: I got it, and cleared the agps data but still the same issue. The wierd thing is that while I stand still, the speed keeps increasing and descreasing at very high number.
I tested another one x and it was far more accurate and stable than mine I think mine is defective :S
Mine is quite amusing it says i'm at home then you will see it move at light speed and place my gps target in a whole other country whilst saying its got 5m accuracy, have tried clearing aps to make no diff
mbushnaq00 said:
Can you please provide me with the market link, I really would appreciate it
EDIT: I got it, and cleared the agps data but still the same issue. The wierd thing is that while I stand still, the speed keeps increasing and descreasing at very high number.
I tested another one x and it was far more accurate and stable than mine I think mine is defective :S
Click to expand...
Click to collapse
Pyung said:
Mine is quite amusing it says i'm at home then you will see it move at light speed and place my gps target in a whole other country whilst saying its got 5m accuracy, have tried clearing aps to make no diff
Click to expand...
Click to collapse
+1: GPS is unusable...
escalator said:
+1: GPS is unusable...
Click to expand...
Click to collapse
The best way to test GPS is to put the phone in airplane mode, turn off GPS, and reboot it. After it reboots then activate GPS. That way it won't be using aGPS (wireless or Wi-Fi) and be relying solely on the GPS chip for location.
Download an app from the Market called GPS Test. When I run it I see the phone's kind of screwy. It sees 16 satellites immediately (excellent) and locks on about half of them (average) but then keeps changing which satellites it's receiving from.
It will get down to 9' in accuracy which is actually very good but it's odd that it keeps shifting satellites instead of staying locked on the ones it has previously identified and read. I set a route in CoPilot using nothing but the GPS chip and it seemed fine; my origin remained stationary. When I go out later I'll actually try using it in the car for a full route.
It's really hard to say whether it's h/w or s/w at this point.
Edit: After doing all the above I noticed I lost a pretty hefty amount of battery. Looking in the battery stats Android OS was the number one battery user exceeding even the display. That's abnormal which leads me to guess the issue is probably s/w.
What is a "GPS compass", please? (There's no such thing.)
Used GPS for the first time yesterday, for a two hour trip with Sygic maps' 12.1 beta. Worked perfectly the whole way.
BarryH_GEG said:
Edit: After doing all the above I noticed I lost a pretty hefty amount of battery. Looking in the battery stats Android OS was the number one battery user exceeding even the display. That's abnormal which leads me to guess the issue is probably s/w.
Click to expand...
Click to collapse
That could be a red herring. A rather large issue has been discovered with the battery stats that it does not go down correctly when the phone is on standby (screen off). When it suddenly realises the true battery status, it plummets to the correct level.
Yeah. There is something strange going on with the compass and GPS.
Google Maps has my arrow moving around a lot and also changes direction significantly even when I'm stationary. Not sure what is going on there. There is a certain amount of uncertainty and jitter when using GPS but it should be smoothed out.
I've tried disabling the WiFi/Cell location system and only using GPS but it doesn't affect it. Resetting the AGPS data doesn't help either.
The GPS issue seems to be big and i use GPS and Navigation too often with my phone. Tonight or tomorrow i am getting my One X and i hope they will sort this out sooner.
zekit said:
The GPS issue seems to be big and i use GPS and Navigation too often with my phone. Tonight or tomorrow i am getting my One X and i hope they will sort this out sooner.
Click to expand...
Click to collapse
That's debatable. I have no noticeable issues when actually moving (even at walking pace), and get an accurate lock. When sitting still, the GPS does show slight motion, but only in the area immediately around my actual point, and even my dedicated GPS receiver does that to a degree. It's a fact of life that consumer GPS doesn't give better accuracy than a couple of yards.
I used Google navigation yesterday for a 25 mile trip. No issue. I've not tried it for walking but then I never really use it for that. Maybe I can have a go and report back.
Sent from my HTC One X using xda premium
I too am noticing an issue with GPS accuracy as detailed in my post here using sports trackers:
http://forum.xda-developers.com/showthread.php?t=1599057
Hard to say if its a software issue or hw issue... I havent "Tracked" myself over a long distance so it could be the GPS getting confused with only small changes in distance?
Can someone track themselves on a long-ish road that doesnt have many/any slow moving areas so we can see the accuracy of it?
I'd be curious to know what cases people with problems are using. We've already had one report of reduced wifi range with a third-party case, not beyond the realms of possibility that it could also reduce gps reception.
Sent from my Transformer TF101 using XDA
Guys, I just replaced my phone yesterday, I have to say the replacement has far more better accuracy than the old one. It seems to be a hardware defect and if you have the same problem then have it replaced asap.
To check, just download speedview, stand still outside with clear vew to the sky, and see how the speed jumps. If its between 0 to 5 and mostly 0 then you have a good unit, otherwise if goes to 20 then 40 and even 220!! then u definitely need to replace the device. I dont think any method u try will resolve this issue cuz its a hardware problem and not software.
+1: GPS is unusable...
and 1.28 yesterday did not better my gps stability
zilmer said:
and 1.28 yesterday did not better my gps stability
Click to expand...
Click to collapse
If GPS is unusable, you most likely have a hardware problem. Get the phone replaced.
Tiersten said:
Google Maps has my arrow moving around a lot and also changes direction significantly even when I'm stationary.
Click to expand...
Click to collapse
+1 to this as well, the compass isn't working correctly, maps showing me in completely different direction.
Got bored and decided to film it.
Makes me laugh
http://www.youtube.com/watch?v=hcbtRUHBo40
Sitting on my desk right under the window. Nexus one right next to it doesnt do this.....
Demented-Idiot said:
Got bored and decided to film it.
Makes me laugh
http://www.youtube.com/watch?v=hcbtRUHBo40
Sitting on my desk right under the window. Nexus one right next to it doesnt do this.....
Click to expand...
Click to collapse
That's funny to watch. Here's what I've found. When you download and view GPS Tracker you can see that the phone's not staying fixed to specific satellites and is instead bouncing around between them. The weaker the signal (indoors) the more it bounces. Outdoors with a clear signal it's fine. But because it's still locking on satellites, even randomly, it still maintains its accuracy. My accuracy indoors is 9' vs. 15' for my SGS2. I haven't compared it to another One X so can't comment on whether they all behave the same way.
You might want to run GPS Tracker on both your One X and GN to see how differently they perform. Also keep in mind that the way GPS works in flight mode (no aGPS support) is very different than when it's using Wi-Fi or a wireless signal. The former is the best way to test the GPS chips function. To really test the GPS chip put the phone in flight mode and then restart it. It'll be much slower to lock (they all are) and the results you'll be seeing are the GPS chip working on its own.

Auto agree to location consent.

Is there any way...either an app or a tasker task/script that will automatically agree to the location consent box that pops up when GPS is turned on?. I'm finally getting annoyed by it lol. I'm hoping there's gotta be some way around it.
Sent from my Galaxy Nexus using Tapatalk 2
I never noticed. Why not just leave GPS on always? It doesn't hurt anything.
Just leave GPS on. It doesn't use battery unless its being accessed for location for an app. You spend more battery going to settings toggling it on and off over and over.
martonikaj said:
Just leave GPS on. It doesn't use battery unless its being accessed for location for an app. You spend more battery going to settings toggling it on and off over and over.
Click to expand...
Click to collapse
Somewhat true. The Facebook app is buggy, if you have GPS on... and you turn Facebook on (even though location is disabled).
GPS remains on your status bar... even if you go back to home screen. At least that's my reasoning for having it disabled.
zephiK said:
Somewhat true. The Facebook app is buggy, if you have GPS on... and you turn Facebook on (even though location is disabled).
GPS remains on your status bar... even if you go back to home screen. At least that's my reasoning for having it disabled.
Click to expand...
Click to collapse
Use Facebook every day and never had that issue.
Convert whatever is asking for GPS to a system app.
Pretty sure that'll do it.

Why does GPS have to reacquire when switching from one GPS app to another?

Jellybean 4.1.1 & 4.1.2 CM ROM
With GPS turned on, switching from one GPS app to another it takes about 20 seconds for the app to relocate itsself. The GPS has to go thru the entire reacquire sequence.
It seems GPS (even if its turned on in settings) really only gets turned on and off when an app requests it forcing it to reacquire.
IMO the GPS should be turned on all the time if its ON in the settings.
Whats the point of the on switch if its not really on? If thats the case eliminate it. The app can handle GPS location ON OFF
Hemidroids said:
IMO the GPS should be turned on all the time if its ON in the settings.
Whats the point of the on switch if its not really on?
Click to expand...
Click to collapse
That's crazy talk, do you have any idea what leaving GPS on all the time would do to battery life?
pfmiller said:
That's crazy talk, do you have any idea what leaving GPS on all the time would do to battery life?
Click to expand...
Click to collapse
I leave mine on all the time. Of course I know which apps use it and I set them up accordingly
adrynalyne said:
I leave mine on all the time. Of course I know which apps use it and I set them up accordingly
Click to expand...
Click to collapse
No, you have it enabled all the time. I do too, but it's only on when your apps are using it. You seem to understand that, but that's not what the OP is talking about.
pfmiller said:
No, you have it enabled all the time. I do too, but it's only on when your apps are using it. You seem to understand that, but that's not what the OP is talking about.
Click to expand...
Click to collapse
You say potato...
You knew what I meant
I agree. I don't like that when you find a place in Google Maps and then Navigate to it, the GPS has to reacquire. There should just be a 10-20 second delay between closing a GPS app and the GPS actually turning off. Something like that.
clobber said:
I agree. I don't like that when you find a place in Google Maps and then Navigate to it, the GPS has to reacquire. There should just be a 10-20 second delay between closing a GPS app and the GPS actually turning off. Something like that.
Click to expand...
Click to collapse
Doesn't even need to keep it on. If it knows the last good fix was only 5 seconds old then it should use that as a pretty good start for your current location.
Completely agree open up maps, to look for something forgot the name go to google now... and waiting... just leave it on for 10 damn seconds i can live with 10 minutes less battery life
pfmiller said:
That's crazy talk, do you have any idea what leaving GPS on all the time would do to battery life?
Click to expand...
Click to collapse
Hemidroids said:
The app can handle GPS location ON OFF
Click to expand...
Click to collapse
Actually in the previous version of Maps I was pleasantly surprised to notice that the hand-off from maps to navigation did not release the GPS lock.
I am not sure if they changed it back but my point being - hand-off from app to app can clearly be done more intelligently but again in the case of Maps we know that Navigation and Maps are the same app essentially so may be it was easier to do it.
The app already does handle turning GPS location on and off, that's not what the GPS permission toggle is for.

[Q] GPS broken?

I am on the stock AT&T rom on my E980 and one day out of no where, my GPS cannot find my location. When I am on wifi it knows where I am at but if I am in the car or just walking around somewhere, it cannot find me. I have tried some apps on the play store that say that it "fix" the issues but none of them do. Do I need to call AT&T or is there something I can flash that can fix my issue?
Thanks.
It sounds like you may not have set the gps to high accuracy since with Wi-Fi you can find your location. Try setting, location, and set gps to high accuracy instead of battery saving mode. If that's not your problem, try a gps testing app and see what that does.
hawkwind212 said:
It sounds like you may not have set the gps to high accuracy since with Wi-Fi you can find your location. Try setting, location, and set gps to high accuracy instead of battery saving mode. If that's not your problem, try a gps testing app and see what that does.
Click to expand...
Click to collapse
I made sure that the location mode was on high accuracy and I even tried device only and alas, maps couldn't find me. I tried one of the GPS "Fixing" apps and it showed that I had a very weak GPS signal. I don't a case on my phone and I was on my deck while I was testing.
Chronic cross said:
I made sure that the location mode was on high accuracy and I even tried device only and alas, maps couldn't find me. I tried one of the GPS "Fixing" apps and it showed that I had a very weak GPS signal. I don't a case on my phone and I was on my deck while I was testing.
Click to expand...
Click to collapse
Custom ROMs past the gproj-common GPS HAL fix have great GPS.

GPS/Location lost when screen is off??

Hi!
I used to have no problems with this situation on any of my previous phones:
In apps that uses gps, like runkeeper, i get very fast gps lock.. but, then, once I disconnect the screen, the "location" seems to be turned off.. The gps track stops counting. When I turn the screen on again to check what is happening, the phone instantly gets gps lock and registers that new spot. Basically what happens is that I will get a track but, instead of having the full track, I only get "straight" lines between the points the gps locked when i turner the screen on to check what was going on..
I have the location in high accuracy..
Any ideas?
Thanks!
I have the Impression there is a different location provider for the new chipset. When i am at places without any gps signals (for example a tunnel) the reported location is moving with the same speed and direction i had before coming into the tunnel. There also a change in my Google location history. When the screen is off it looks like the location is provided by phone cell only. The reported location is more than 300m away from my real location. I have not seen this in the same locations with my older phones. (Edit: All with Oyxgen OS 3.1.2)
I have the same issue as op on 3.1.2, not rooted.
Sent from my ONEPLUS A3000 using Tapatalk
I have this stupid thing also, stupid phone,
The gps loses the fix right after you leave the app that uses it. It doesn't work in the background, I'm gonna have to return my phone sadly.
So does this happen with the newer firmware? Can you put it in the background with the screen on and it run? It seems like a software issue more so than hardware, maybe I'm wrong but who knows..
Sent from my SM-G935T using Tapatalk
obviously a software issue, but they won't fix it since nobody talks about it. If you switch to another app that doesn't use GPS or turn off the screen the phone loses the fix right away.
Still happens with Oxygen OS 3.2.0
Can you give a try launching a nav session in google map. On my lg G2, when I get a fix in google map then turn the screen off, I will loose my fix. But if I launch a turn by turn nav session I will keep my gps fix even if I turn the screen off.
Could this be related to doze hibernating Maps or whatever app /?
Jfxmedia said:
Could this be related to doze hibernating Maps or whatever app /?
Click to expand...
Click to collapse
Yes. This is likely related to the aggressive Doze mode that has plagued users in receiving notifications. Try disabling Doze by following the instructions in the link below and try GPS again. If it works, then Doze is the cause.
https://forums.oneplus.net/threads/push-notification-issues.451149/
Mit Hipster said:
Yes. This is likely related to the aggressive Doze mode that has plagued users in receiving notifications. Try disabling Doze by following the instructions in the link below and try GPS again. If it works, then Doze is the cause.
https://forums.oneplus.net/threads/push-notification-issues.451149/
Click to expand...
Click to collapse
Anyone tested this with success?
Turn off power saving mode for using GPS while turn off screen
I have used Strava and it can not be received GPS signal when screen off. Then I turned off power saving mode and it was OK.
Porsche.V said:
Anyone tested this with success?
Click to expand...
Click to collapse
its dose feature that's interfering. I had the same issue. disabling dose does the trick.
dpj52190 said:
its dose feature that's interfering. I had the same issue. disabling dose does the trick.
Click to expand...
Click to collapse
And this is why I make my rom that disables doze all together. It kills battery more then it saves.

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