Compass Wildly Inacurrate

starglider

The compass in Google Maps is crazily inacurrate---off by at least 90 degrees and sometimes almost 180. Both Maps and Google Play Services have sensor access.

I've tried doing the "figure eight maneuver," which doesn't seem to improve anything. That said, it never asks me to calibrate, and I can't see how to initiati that; I've just waved it around.

Has anyone else encountered a similar problem? Any ideas? Hardware is a P10PF.

Developer-Dude

starglider are you indoors or outdoors? What's the Geocoder set to? Should be on GrapheneOS server. How about Network Location? Is that set to the GrapheneOS Apple Proxy?

Ignorant_Cormorant

starglider

starglider Has anyone else encountered a similar problem?

Yes. Same hardware.

Generally while navigating it is okayish, but with a few slight phone rotations I can reverse the direction.

Didn't have time to do comparison tests yet.

Developer-Dude What's the Geocoder set to? Should be on GrapheneOS server.

And it affects the magnetometer on the device, how?

You also mean the compass stops working or its precision is affected in offline mode?

koocmit

starglider it works fine for me on trail sense across models (9 and 10). Maybe a Google Maps issue? Have you checked using any alternative Compass app? That can help see if it is a hardware or software issue

Novalissoide

starglider
try this simple basic compass app:
https://github.com/Kr0oked/Compass/releases

Developer-Dude

Ignorant_Cormorant And it affects the magnetometer on the device, how?

You also mean the compass stops working or its precision is affected in offline mode?

Not sure, but I do know that with Geocoder on instead of off, I have a lot more accurate location

Ignorant_Cormorant

Correction: I'm on 10 Pro XL, not Fold.

Johnnyloans

A thought:
Are we all sure it is the compass and not inaccurate GPS updates tricking google maps into thinking we are traveling in a different direction? I don't know how much weight google allocates to the 2 metrics for its logic.

There must be a compass app to test and aid 1 theory.

xxx

Novalissoide simple basic compass app:

It is a good one.I use it since years.

Ignorant_Cormorant

With this app my 10PXL lying still fluctuates by around 10 degrees.

By rotating the phone and putting it back in the same position, I can confuse it with differences up to 120 degrees.

But when walking a certain distance while keeping the phone in hand, the general direction is correct, just like with Organic Maps.

Johnnyloans

Ignorant_Cormorant

That's unfortunate. My north always points correctly.
Well, I have to point my phone in a direction that isn't to the sky or ground.

starglider

Thanks for all the ideas! I do have geocoder on as well as network location. GPS is redirected to the OS (default behavior).

It's definitely the compass; GPS will show me moving in the correct direction, even while compass is pointed sideways to the movement vector. I notice the issue when walking, not driving.

Issues are outside; never really bothered with it inside.

I downloaded the compass app that was suggested and will try that out to help troubleshoot.

Thanks for the suggestions! I'll report back if I discover anything interesting.

Novalissoide

starglider the compass app

And the option "True North", if OFF it uses just sensors like magnetic compass and accelerometer. If ON, location features is also utilised like GPS and whichever network location is configured if any. So, toggling this may clarify a bit. Having a trusted natural compass at hand for reference also helps.

Novalissoide

xxx good one.I use it since years

Yes. I like the haptic feedback, and the lack of distracting beauty-skins. The true north option, and the accuracy meter. All these are present in other apps, but not all in the same app like this without a lot of extra features.