A-GPS Beta MUCH improved GPS on N810
 

Well, previously the internal GPS on the N810 taking hours, yes hours mostly, I know in the house, moving location by about 25 miles...etc. vs my iTrek taking seconds or at most a few mins....I am now glad to say it seems that the Nokia A-GPS Beta (from Nokia) has improved the N810's GPS use or is it Diablo and/or Diablo and the A-GPS....:D...In any case...mins the last few times (Yes from the same places as previously).

Now if I could get TomTom to work I would have one (two with my cell as a back up to data connections...;)) awesome "all-in-one" device. No Video device, No Ipod, No GameBoy, No PDA, to carry AND sometimes no more cell phone!!!! Lost those 10 lbs (20 lbs. if you count the laptop) I keep promising I will...:cool:

Looking forward to the day when I have my "Dick Tracy" all-in-one....

Re: A-GPS Beta MUCH improved GPS on N810
 

Yeah, it works well. It can grab the data from WLAN, but also from GPRS/UMTS. No longer have to wait for a long time for a lock :)

Here is all the required information http://betalabs.nokia.com/blog/2008/...beta-for-n810/ the installation was straightforward for me.

Re: A-GPS Beta MUCH improved GPS on N810
 

Wow, this is great. The GPS locked on in 20 seconds, probably the fastest I have ever experienced with the device. I'm glad Nokia actually did something about this blatant problem...

Re: A-GPS Beta MUCH improved GPS on N810
 

How do you actually get it to work? Do you just open agps at the same time as maps?

Re: A-GPS Beta MUCH improved GPS on N810
 

my lock times have gotten much worse ( assuming I can even get a lock ) is there some secret to making it work?

Re: A-GPS Beta MUCH improved GPS on N810
 

I second that.

Re: A-GPS Beta MUCH improved GPS on N810
 

I can't figure it out either. I open it, pick my spot, start GPS, but nothing ever seems to happen.

That and it doesn't have my wireless router listed in the "preferred connections" list, just the motorola cell phone. I thought it worked with WLAN too.

Re: A-GPS Beta MUCH improved GPS on N810
 

Mine lists NOTHING under preferred connections ( I have BT + Wifi ). I have been unable to get a lock now ( testing ) in 20+ minutes.

Re: A-GPS Beta MUCH improved GPS on N810
 

Yeah I had some problems too when I first ran it. I don't know why this happens.

On the map, you need to select the correct location near you.

If you go to the systray you can also change the settings (enable or disable a-gps).

I click on the GPS icon, location, then 'search' (or 'refresh') and with an active connection it works. You'll immediately have 10 till 12 satelites in view. That does not mean they are in use tho.

Re: A-GPS Beta MUCH improved GPS on N810
 

My systray GPS icon DOES NOT have enable or disable A-GPS and I have not only selected a nearby location I have also attempted using gconftool-2 to manually set the exact GPS coordinates

Re: A-GPS Beta MUCH improved GPS on N810
 

me neither brontide. No A-GPS option in the GPS icon and it seems to act as though its not even talkng to anything.

Re: A-GPS Beta MUCH improved GPS on N810
 

what's your listing from apt-get --list | grep gps?

I'm wonderng if somehow we got a bad package.

Re: A-GPS Beta MUCH improved GPS on N810
 

Same here. I thought it was something I am doing (or not doing)...how does the a-gps work? Do we open it first? Keep it open? Does the location have to be exact? Seems like my fix time has gotten worse, too.

Re: A-GPS Beta MUCH improved GPS on N810
 

The first time you use A-GPS you _need_ an Internet connection.

You use the A-GPS program in the startup menu in Extras to select your location.

Its always active, as soon as you are using GPS you are also using A-GPS.

From the blog entry:

PS: I have exactly same GPS software as listed in above post!!

Re: A-GPS Beta MUCH improved GPS on N810
 

It doesn't work... I've done all of the above and more... nothing, nadda, it doesn't work and has completly screwed up GPS in general. Even uninstalling A-GPS does not restore proper functioning of GPS.

Re: A-GPS Beta MUCH improved GPS on N810
 

I have exactly the same packages.

The 'enable or disable A-GPS' is the first option (A-GPS support) in Settings menu of A-GPS app.

Re: A-GPS Beta MUCH improved GPS on N810
 

It's checked, so is packet data, but the third combo is blank and there is nothing to select.

Re: A-GPS Beta MUCH improved GPS on N810
 

You won't need to check packet data. That is for when you want to use via your mobile phone, over bluetooth. It works over WiFi too. You don't need to select anything then, only enable it.

You'll need Diablo too, btw.

You can provide feedback to Nokia (the author) here http://betalabs.nokia.com/blog/2008/...beta-for-n810/ :)

Re: A-GPS Beta MUCH improved GPS on N810
 

If you have a mobile phone configured to peer with over bluetooth it will be listed here. Else, it is empty. So, WiFi connections are NOT listed here. But WiFi connections will be used, if they're open.

The data A-GPS uses isn't much, you can easily use GPRS for this purpose.

Re: A-GPS Beta MUCH improved GPS on N810
 

Nope, nadda, nothing. Reboot nothing, remove agps, nothing, reinstall supl-daemon nothing.

I can't get a lock at all because of AGPS

Re: A-GPS Beta MUCH improved GPS on N810
 

For some reason I had this too the first day I used it. But the second day it magically worked. No clue why.

Have you tried to disable A-GPS? You can do that in the A-GPS GUI -> Settings

Re: A-GPS Beta MUCH improved GPS on N810
 

Seems sometimes it does take longer now that I add a bunch of other applications, however, from hours still to about a min or so....here are some screen shots....only allowed 5 screens....

Re: A-GPS Beta MUCH improved GPS on N810
 

I know how it's supposed to work... it doesn't

Re: A-GPS Beta MUCH improved GPS on N810
 

First, the a-gps program simply tells your N810 what satellites SHOULD be in view based upon the location you selected on the map. When you start maemo mapper or other gps software, the internal gps now knows what satellites it should be looking for. The time to fix is greatly reduced by knowing what it is looking for.

The problem with such a-gps is that if you pick a completely wrong point on the map it may never get a fix. You are screwed in other words. I wonder if this is why some people are having a worse time.

The way you know it is working is shown in post #22 image #3. You notice that it shows several satellites without even having a signal strength. The "assisted" portion of a-gps is spoon feeding that information to the gps. Just like on mine, as soon as I launch a gps program, I see all of the satellites already listed.

Re: A-GPS Beta MUCH improved GPS on N810
 

Well, please all bear also in mind that this is beta software (and as such is not installed by default either).

Re: A-GPS Beta MUCH improved GPS on N810
 

https://bugs.maemo.org/show_bug.cgi?id=2878

Near the bottom of the discussion I think we hit the problem. Sulp ( the daemon that manages the a-gps data ) can silently crash/go away and gps will never lock. There is no feedback to the use that the application has crahsed and the only way they know to clear it is a reboot. I suspect there are situations (like mine) where a reboot does not clear it.

i was able to bring it back only after apt-get remove libsulpd1 and agps-ui and then reinstalling all the dependent system libraries that are compiled against it. Rebooting, running till a gps fix, and only then installing and enabling agps-ui.

I still don't know if it's doing any good, but the satellite list does seem to be almost full pre-populated when starting a fix.

Re: A-GPS Beta MUCH improved GPS on N810
 

[Sigh]

You wouldn't care to explain the fix step-by-step, by any chance? Like you, my GPS is dead as a dodo. I have no '*ulp' process running and I've just turned it on.:(

Re: A-GPS Beta MUCH improved GPS on N810
 

Have you tried rebooting? My GPS didn't work at all after the update and I rebooted once or twice and then it got a fix.

Re: A-GPS Beta MUCH improved GPS on N810
 

Ok, just uninstalled A-GPS, reboot, install again, reboot, start A-GPS, select position, start map, select GPS position, about 5 secs to a bunch of grey bars, about another 5 secs to a fix. :eek::eek:

more [sigh]s but at least it works.

Re: A-GPS Beta MUCH improved GPS on N810
 

How often does the data need to be updated for this to work if
you stay in the same area? Every time or every few days or what?

I'm also interested hos much data need to be transferred with
the totally insane roaming costs in Europe.

thanks

Mikael

Re: A-GPS Beta MUCH improved GPS on N810
 

By the way it should be "supl" not "sulp".

Re: A-GPS Beta MUCH improved GPS on N810
 

As in Secure User Plane Location.

Re: A-GPS Beta MUCH improved GPS on N810
 

This is puzzling. Following this thread because Maemo Mapper was no longer getting a fix, I decided to uninstall and reinstall the a-gps beta. Uninstall went fine, but when I went to re-install, it was no longer in the catalog. Red and Blue pill, no luck.

Ok, I figured I was dreaming that it had simply appeared in the app manager after the Diablo re-flash. So, I followed the link in one of the early posts in this thread and downloaded it from Nokia beta labs, or so I thought.

I went to 'install from file' and the app manager went through it's regular install ritual (including adding a catalog that I thought I already had: Maemo Extras), but then the process failed and I got this message:

"Unable to download agps-ui. Application package not found."

Hmmm....the file downloaded appears to be 1k, which seems rather small :o

So, has a-gps been pulled from development? Or am I (per usual) dreamin'? It was there, right?:eek:

Re: A-GPS Beta MUCH improved GPS on N810
 

Maybe you changed Maemo Extras repository to Chinook and forgot to change it back to Diablo. Check it.

Re: A-GPS Beta MUCH improved GPS on N810
 

agps-ui isn't in extras repo but in nokia certified repo. Anyway here's direct link:
http://catalogue.tableteer.nokia.com...ser/a/agps-ui/

Re: A-GPS Beta MUCH improved GPS on N810
 

I see that there is a new version of agps-ui (0.10-1beta), has this made a difference to any of the problems that some were reporting here?

Re: A-GPS Beta MUCH improved GPS on N810
 

Thanks for the tip. but no luck. Your post raises a couple of questions fo me though:

First, I hadn't actually changed any of my catalogs to diablo. I've been following the diablo release pretty closely, but may have missed the note about changing repositories in the catalogs. I've been getting application update notifications through the status bar so I thought my catalog repositories were lined up correctly, so to speak.

So, are we 'supposed' to change the repository to diablo in all catalogs in order to get the latest versions of applications?

EDIT: I think the answer to this question is yes...I changed the repository in the Nokia certified catalog and have 23 updates to install:)

Perhaps, I should just not worry about it... ;)

Re: A-GPS Beta MUCH improved GPS on N810
 

Thanks! I didn't even need the direct link. I changed the repository to diablo in the Nokia catalog and voila! I guess I haven't been paying as close attention to the diablo change as I should have. :rolleyes:

Re: A-GPS Beta MUCH improved GPS on N810
 

To the best of my knowledge, the GPS satellites are in geosynchronous orbit, which means they are orbiting the Earth at the same speed as it rotates (so relatively speaking, they will stay in about the same position above your house over a period of time). Based on that, you should not have to update the data unless you've moved more than 300km from the position you've updated the data from. You still might lose a satellite or two if you move out of its range, however, and may need to update the data again.

This information might be out of date since they've introduced more satellites than the initial 24, but I couldn't find any concrete information stating otherwise. Additionally, I haven't been able to use the A-GPS program on my n810 yet, so I can't say from experience whether this information is valid.

Re: A-GPS Beta MUCH improved GPS on N810
 

No, that is wrong. GPS satellites are _NOT_ in geosynch orbits, they orbit much lower and not just in the equatorial plane (which wouldn't cover the globe), and thus they are never in the same place from moment to moment.

edit: Sloppy wording improved a bit.