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bilofsky |
2008-03-31
, 18:00
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Posts: 145 |
Thanked: 33 times |
Joined on Dec 2007
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#31
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Originally Posted by Tantris
I will be travelling and using the GPS in the near future. Reflashing (including any possible problems) has to wait until I return. So if there is a quick patch just to the GPS, I would install it now.
If I knew where and how.
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2008-03-31
, 20:27
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Posts: 398 |
Thanked: 77 times |
Joined on Jul 2007
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#32
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Originally Posted by bilofsky
plese note before you do this you could do serious damage to your n810 causing you to have to reflash. however i have not suffered any issues at all...ymmv
I will be travelling and using the GPS in the near future. Reflashing (including any possible problems) has to wait until I return. So if there is a quick patch just to the GPS, I would install it now.
xterminal
sudo gainroot
apt-get update
then when that completes
apt-get upgrade
(answer y to the 2 questions about downloading and installing stuff)
this will upgrade a boat load of stuff and when i did it just before 2/29 i saw a gps upgrade slip in - since then my lock time has been "spot on" on the order of my garmin ctrex legend c
once again i do not want to responsible for anybodies bad vacation experience and i can only advise what i did and the results of what i did.....
| The Following User Says Thank You to prk60091 For This Useful Post: | ||
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2008-03-31
, 20:40
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Posts: 145 |
Thanked: 33 times |
Joined on Dec 2007
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#33
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Originally Posted by prk60091
Thanks! I will give it a few hours to see if anyone posts a bad experience or more explicit warning, and then do a backup and give it a try.
plese note before you do this you could do serious damage to your n810 causing you to have to reflash. however i have not suffered any issues at all...ymmv
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2008-03-31
, 20:50
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Posts: 28 |
Thanked: 4 times |
Joined on Dec 2007
@ Spokane WA
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#34
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Would not recommend what prk60091 posted. My tablet now is in infinite reboot. I'll have to reflash or something when I get home today. I am not worried and thought it would be fun to try, but the second yes on in the terminal can be a killer I guess.
Isaac.S
Isaac.S
| The Following User Says Thank You to isaacs For This Useful Post: | ||
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2008-03-31
, 21:03
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Posts: 145 |
Thanked: 33 times |
Joined on Dec 2007
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#35
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Thank you both, isaacs and prk60091, for sharing your experiences. Sounds like I should try this, but not until I have time to deal with any possible consequences.
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2008-04-01
, 22:23
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Posts: 9 |
Thanked: 1 time |
Joined on Mar 2008
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#36
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Well, my GPS also improved (not that much, 10-20%) after flashing new 2007.51 image.
Never had a real problem with it. The idea is that acquiring a lock needs a clear view of the sky, lack of RF interference and metal objects around helps too.
I was fairly amused when I was checking the maps and forgot to disable GPS... took a lock in like a minute and a half. In the middle of the city.
AFAICS maemo-mapper caches GPS almanac. The problem is that w/o having a GPS run for two days at different times you wouldn't get the locations of all sats with enough precision to be able to predict positions at all times.
It'd be great if maemo-mapper could correllate and correct (at least partially) that stale data vs approximate current position, say, selectable on the map.
Could somewhat improve lock times in cases of reflections.
Never had a real problem with it. The idea is that acquiring a lock needs a clear view of the sky, lack of RF interference and metal objects around helps too.
I was fairly amused when I was checking the maps and forgot to disable GPS... took a lock in like a minute and a half. In the middle of the city.
AFAICS maemo-mapper caches GPS almanac. The problem is that w/o having a GPS run for two days at different times you wouldn't get the locations of all sats with enough precision to be able to predict positions at all times.
It'd be great if maemo-mapper could correllate and correct (at least partially) that stale data vs approximate current position, say, selectable on the map.
Could somewhat improve lock times in cases of reflections.
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2008-04-28
, 03:01
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Posts: 4,030 |
Thanked: 1,633 times |
Joined on Jul 2007
@ nd usa
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#37
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Originally Posted by bilofsky
How is it going? Better? Worst? No change?
Thank you both, isaacs and prk60091, for sharing your experiences. Sounds like I should try this, but not until I have time to deal with any possible consequences.
Thanks
bun
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2008-04-29
, 17:01
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Posts: 145 |
Thanked: 33 times |
Joined on Dec 2007
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#38
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Originally Posted by bunanson
I'm ready to try it, but leery about losing installed software, especially claws mail which I've spent some time setting up.
How is it going? Better? Worst? No change?
Does anyone know if backup includes claws mail's setup data?
Is there a simple way to copy my RAM contents to an SD card so I can try to get application data back afterwards? I can get into xterm but am not familiar with the file system layout.
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2008-04-30
, 06:02
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Posts: 477 |
Thanked: 118 times |
Joined on Dec 2005
@ Munich, Germany
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#39
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I posted the following comments in bugzilla:
-cold fix times are much shorter if the antenna is pointed to the south (in the north hemisphere) than towards the north. This suggests that the GPS chip does not use the correct doppler shift.
-hot fix times are short if a cold fix was done using the wayfinder map application. If I use, say, maemo mapper only, hot fixes are not shorter than the first fix (cold fix), suggesting that almanach or last position data is not saved correctly when using another application than the wayfinder map application.
-cold fix times are much shorter if the antenna is pointed to the south (in the north hemisphere) than towards the north. This suggests that the GPS chip does not use the correct doppler shift.
-hot fix times are short if a cold fix was done using the wayfinder map application. If I use, say, maemo mapper only, hot fixes are not shorter than the first fix (cold fix), suggesting that almanach or last position data is not saved correctly when using another application than the wayfinder map application.
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2008-05-01
, 04:21
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Posts: 4,030 |
Thanked: 1,633 times |
Joined on Jul 2007
@ nd usa
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#40
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Originally Posted by Jerome
None of them worked for me. I drove from NJ to Baltimore (65min) GPS is NOT locking. I rebooted the N810/2008OS it then locked in 21 min. I am ready to reflash or return to Nokia...
I posted the following comments in bugzilla:
-cold fix times are much shorter if the antenna is pointed to the south (in the north hemisphere) than towards the north. This suggests that the GPS chip does not use the correct doppler shift.
-hot fix times are short if a cold fix was done using the wayfinder map application. If I use, say, maemo mapper only, hot fixes are not shorter than the first fix (cold fix), suggesting that almanach or last position data is not saved correctly when using another application than the wayfinder map application.
bun