Re: Reason for GPS problems found!

Previous thread: NEWBIE : beginning development in openmoko by Rahul Ramasubramanian on Tuesday, July 15, 2008 - 5:46 am. (3 messages)

Next thread: Re: Reason for GPS problems found! by Peter Trapp on Tuesday, July 15, 2008 - 7:53 am. (1 message)
From: Ken Young
Date: Tuesday, July 15, 2008 - 7:15 am

That's a bit cryptic - what are you saying is wrong?   It it the
idea of removing the shielding, or the claim that the GPS performance
improves dramatically if the microSD card is removed?

Ken Young



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From: Tilman Baumann
Date: Tuesday, July 15, 2008 - 7:50 am

That of course.

Even if it is a good idea to test. No one should suggest to rip off the 
SD card holder to anyone before it is absolutely proven.
This can not longer be called a claim after so much confirmation.

-- 
Drucken Sie diese Mail bitte nur auf Recyclingpapier aus.
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From: Eildert Groeneveld
Date: Tuesday, July 15, 2008 - 7:56 am

[Empty message]
From: Olivier Migeot
Date: Tuesday, July 15, 2008 - 8:00 am

Maybe we should only insert the card once the fix is acquired. At
least at times where we want to use both GPS and SD. Not much of a
solution, but it still act as a workaround (provided the GPS is able
to keep the fix once the SD is re-inserted).


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From: ian douglas
Date: Tuesday, July 15, 2008 - 8:02 am

Considering you need to remove the battery and SIM to install a microSD
card, probably not :o)


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From: Simonas Leleiva
Date: Tuesday, July 15, 2008 - 8:09 am

you can go around the removing battery part if you power FR over USB.
Are you sure you have to remove also SIM?

-- 
sledge, not a FR owner yet


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From: arne anka
Date: Tuesday, July 15, 2008 - 8:05 am

inserting the sd card requires the batter to be removed -- thus forcing th  
gps to a cold start ...
i think we're back at the point where feeding data to the chip is  
meaningful ...

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From: Travis Tabbal
Date: Tuesday, July 15, 2008 - 8:11 am

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*sigh*

If a fix isn't found for this, I guess I'm waiting till the next version. I
need GPS and SD at the same time. Hopefully the OM team can provide a simple
fix as it seems to be a hardware issue.

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<div dir="ltr">*sigh*<br><br>If a fix isn't found for this, I guess I'm waiting till the next version. I need GPS and SD at the same time. Hopefully the OM team can provide a simple fix as it seems to be a hardware issue. <br>
</div>

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From: Simonas Leleiva
Date: Tuesday, July 15, 2008 - 8:15 am

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From: smurfy - phil
Date: Tuesday, July 15, 2008 - 8:19 am

not the best but a better (than reinserting the sd card on the fly) is 
using a external antenna.


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From: Greg Bonett
Date: Tuesday, July 15, 2008 - 8:33 am

Are the actual circuit schematics and board layouts for the FR available? 
Does anyone know of good open source circuit simulation/RF software?

Also, depending on whats going on with the SD card issue, the easiest
workaround might be to design a small external antenna (I think someone
mentioned a micro strip antenna earlier, that might be a good idea.)

-Greg


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From: Travis Tabbal
Date: Tuesday, July 15, 2008 - 9:03 am

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Not really an acceptable option for many. External GPS antennas are
cumbersome beasts when used on a mobile device like the FR. I use one on my
handheld GPS unit for geocaching, and it's really kind of annoying.

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<div dir="ltr">On Tue, Jul 15, 2008 at 9:19 AM, smurfy - phil <<a href="mailto:openmoko@smurfy.de">openmoko@smurfy.de</a>> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
not the best but a better (than reinserting the sd card on the fly) is<br>
using a external antenna.<br></blockquote><div><br><br>Not really an acceptable option for many. External GPS antennas are cumbersome beasts when used on a mobile device like the FR. I use one on my handheld GPS unit for geocaching, and it's really kind of annoying. <br>
</div></div></div>

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From: Joerg Reisenweber
Date: Tuesday, July 15, 2008 - 2:06 pm

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I *really* don't like very much those people who start whining and complain=
ing=20
when the problem is dissected and solution is near.
Just let me crawl thru the ~150 posts regarding GPS from today, and then we=
'll=20
come up with some statement that will stop that whining :-)

cheers
jOERG

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From: Jonathan Spooner
Date: Tuesday, July 15, 2008 - 2:17 pm

With the greatest respect I think people have good reason to 
*complain*.  Looking at these lists I'd bet there are more system 
engineers and developers than *ordinary* users.... why? because we saw a 
device that was open and accepted the fact that the software was in its 
infancy and perhaps relished the chance to be involved to bringing it up 
to spec..... but one thing that was not expected was that people would 
be spending money on a device that could have potential hardware 
issues.  Perhaps those complaining are those who can least afford to 
blow $399.

Regards,

Jon





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From: Michele Renda
Date: Tuesday, July 15, 2008 - 2:28 pm

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But acconding you, OM team is happy because there is a hardware bug in
Freerunner?

I am one of the persons that just bougth a 350 EURO phone: when I bought
 the phone I was already knowing that was not an End User device.
They tried to make the hardware bug free... they failed: we must to kill
ourself?

I think that the most intelligent thing to do is to start to move and to
search for a solution (as did some fantastic persons in this list). A
software one or an hardware one.
For who like me, that just bought the phone, I'd like to have some
instructions released to hardware solve the problem (bringing to an
repair center) but first I think we must deeply understand why it happen
and how to solve!


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From: Joerg Reisenweber
Date: Tuesday, July 15, 2008 - 2:37 pm

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You're kidding, no?
You ever bought a piece of HW you were guaranteed there is *definitively* n=
o=20
hardware bug in it? None, or you get a billion$?
c'mon!
That's why I say I don't like those people. They never noticed the bug, and=
=20
when we are about to discuss it and to offer a solution they start=20
whining. "OOOh, the BAD bug. If only I never had bought..."
Instead of plain asking what we're going to do to MAKE EVERYBODY HAPPY agai=
n.=20
(what we are already about to do!)
/jOERG


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From: Jay Vaughan
Date: Tuesday, July 15, 2008 - 2:44 pm

Ever heard of Consumers rights?  Lemon Laws?  You can't sell hardware  

They are your customers.  This is an open source project, people have  


Sure will be nice when its done, but for now, we do need to keep  
talking about the issue, and the point needs to be made that this *is*  
a serious issue for many people, if it doesn't get resolved in a  
fashion that makes sense.  I'm already miffed about the Glamo/SD issue  
- for me, Glamo was one of the great things about Freerunner on  
'paper', and now its not so useful after all.  I would be really  
turned off if the same thing happened to GPS.

So, yes, please tune us into the fix when you've got one.  But in the  
meantime, no need to get upset because your customers are  
communicating with each other..

;
--
Jay Vaughan





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From: Joerg Reisenweber
Date: Tuesday, July 15, 2008 - 3:02 pm

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Ever thought about I might feel personally offended by you publically assum=
ing=20
I sell hw I *know* or even have suspect there is a HW-bug in it. Ever heard=
=20
And I have this chance too. I just say "I don't like those people..."

Did you consider the public image that's being created by a statement like =
"Ah=20
well, this seems not to work. So the brick is useless for me. Damn the day =
I=20
bought it"
This statement is offending and deprecating on all the people that are=20
actually about to fix the issue that's so bitterly complained about. And it=
's=20
an implicit lie as there's no problem we resigned on to solve it and put th=
e=20
device to use for the complaining customer.

But honestly, I don't like to continue this debate, and I actually don't ha=
ve=20
the time to.
Have some bugs to fix, U know ;-) Appreciate our efforts or not.

ETX
jOERG

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From: Robert Horton
Date: Tuesday, July 15, 2008 - 3:40 pm

Joerg is right. Most of the comments, especially lately are a bit over the
line. I understood where people were coming from a few days ago when the
only response I saw regarding the GPS was the PDF showing good results
implying that the problem was not duplicated by the people who need to see
it. Today, however, with the root cause found and Joerg's many emails
everyone should just wait for the solution.

I didn't get in on the 1973, but bought the FR based on the many good things
I saw with the openness of the hardware, software, and company. I bought the
FR knowing that when you adopt anything in the early stages you may have to
ride a few uncomfortable waves. Based on what I've seen, I have confidence
that they will solve this problem and many others. 

Just think, Microsoft's Xbox 360 had a pretty bad HW issue with its heatsink
and early adopters of that gaming system had lots of issues. Stuff happens.

Joerg and all at Openmoko, thanks for working on this and don't let the
negative comments get to you...most of us silently applaud your work. 

-Robert



-----Original Message-----
From: community-bounces@lists.openmoko.org
[mailto:community-bounces@lists.openmoko.org] On Behalf Of Joerg Reisenweber
Sent: Tuesday, July 15, 2008 5:03 PM
To: community@lists.openmoko.org
Cc: Jay Vaughan; Jonathan Spooner
Subject: Re: Reason for GPS problems found!


Ever thought about I might feel personally offended by you publically
assuming I sell hw I *know* or even have suspect there is a HW-bug in it.
And I have this chance too. I just say "I don't like those people..."

Did you consider the public image that's being created by a statement like
"Ah well, this seems not to work. So the brick is useless for me. Damn the
day I bought it"
This statement is offending and deprecating on all the people that are
actually about to fix the issue that's so bitterly complained about. And
it's an implicit lie as there's no problem we resigned on to solve it and
put the device to use for the ...
From: "Marco Trevisan (Treviño)"
Date: Tuesday, July 15, 2008 - 4:42 pm

Thank you, really!

What is happening in the bugs management here, wouldn't happen nowhere 
in the market world.

-- 
Treviño's World - Life and Linux
http://www.3v1n0.net/


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From: Yair Mahalalel
Date: Tuesday, July 15, 2008 - 10:42 pm

Hello Openmoko community,

I'm a recent lurker on this list, attracted by the wonderful spirit
surrounding Openmoko. Coming from a free software background (and yeah,
zealotry too) I never had much patience for the closed and crippled
nature of mobile phones and when pressured into carrying one, bore it as
a necessary evil. The 1973 was the first time I ever saw a phone I
actually wanted to have; I lusted over it for months, a wicked little
platform I can use and abuse to my heart's content, and didn't try to
get one just because I knew I couldn't afford the time to hack it good
and proper like I should. But the FreeRunner is a final confirmation
that this is no mirage, and the 25th will be the long awaited piggy
smashing day. This world is going somewhere fast, and for this ride I'll
get myself a front row seat.

But there is something on this subthread that bothers me considerably.
Beyond the many things, both fine and nasty, that have been said about
Openmoko's failure to discover the bug during development and
manufacture, and the way in which they're handling the situation now,
there hasn't been a single voice addressing the community's shared
responsibility for having such a bug appear and traced only after
the final product has been shipped.

If freedom is a basic tenet of this platform and not some random boon to
help developers, and if these early units were sent out to create a
community that shares in the unfolding of the system, then testing the
units, finding the bug and tracing its origins, even if not fixing it
outright, should have been in part the community's duty.

A hardware manufacturer is responsible of course for the extensive in
house testing and quality assurance that make sure that clearly
non-functioning units will never be shipped out, but these are complex
systems that require testing in the field - alpha testing, beta testing
- the work and price one has to pay for having the cool toys first. And
it doesn't really matter who's got an early version ...
From: Jay Vaughan
Date: Tuesday, July 15, 2008 - 11:12 pm

Nope.  I have not ever made that assumption.  I assumed you didn't  

If you can't understand why people would be frustrated to learn that  
something as simple as testing GPS with the SD Card in the phone  
hasn't been done, then you shouldn't be selling hardware.


;
--
Jay Vaughan





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From: Timo Jyrinki
Date: Wednesday, July 16, 2008 - 1:56 am

It's not that the frustration wouldn't be understood, it's that
creating negative atmosphere in public is not productive in any way,
just the opposite. It does zero good for fixing the bug or for the
community. So, why complain then?

It's not about silencing the (most) frustrated people, I'm frustrated
too but I know it does not encourage positive co-operation on fixing
problems to complain aloud about everything. So please consider why
some people have crafted posts trying to ensure Openmoko people that
"most people appreciate the work being done" etc., even though they
themselves would have been hit badly by the problem too.

I don't think it helps either to make sure one's rights are listened
to - I think one reason people might complain is that they simply want
to create noise so that Openmoko knows it's important. Please, show a
little more respect and trust for them - they will do anything they
can anyway (why wouldn't they?). And even if there's time for
complaining and demanding, possibly in private, the time is not now
since the issue and all possible solutions are not known.

So, if it's not productive (or positive), please try to restrain
yourself from posting (there have been enough complains already).

-Timo

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From: Simonas Leleiva
Date: Wednesday, July 16, 2008 - 2:29 am

I was expressing sad tone along with the other fellow, instead of
complaining. I think that (and not harsher shouts/demands/insults)
would be appropriate.

Otherwise, imagine, fellows do keep on confirming this bug [would
happen with any other issue, too] -- this _is_ a lack of
functionality, -- but you receive no emails with `please, fix it, I
won't be able to work in the direction I have dedicated/bought FR for
that 75%' or so.

In such case, OM won't be able to prioritize things to fix first,
defer others, if you will silent the people from saying, `yes, this is
the problem I want it to be fixed, as it dumps >50% of my intended
phone's usage'.

This case was obvious enough being critical, but there may be other
non-so-critical-from-the-first-glance issues. You don't have a
knowledge base for every possible future use/combinations of FR, this
is endless, and might be influenced by any HW/SW quirk. And even in
this GSP+µSD case it would have been pretty strange to see people not
asking for a fix for this, just because they have been silenced.

And people don't read the >100-mail threads, they'll just subscribe
and complain..

-- 
Simonas

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From: Alex Kavanagh
Date: Wednesday, July 16, 2008 - 2:49 am

Agreed.
-- 
Alex.


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From: Eildert Groeneveld
Date: Wednesday, July 16, 2008 - 12:59 pm

Jay, please, cool it! How often do you want to repeat this.

I hope you attitute this never falls onto your own feet.

Eildert

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From: papa-piet
Date: Thursday, July 17, 2008 - 5:10 am

So maybe you shold apply for the job of Head-Test-Designer and
Head-HW-Salesman at OM, stop whining and improve the Tests and then you
would be able to guarantee:
There is no problem chewing bubble-gum and using your Freerunner, while
you are walking with your dog.
*IF THIS ISSUE was that trivial, did you reported the solution?*


best
papa-piet

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From: arne anka
Date: Thursday, July 17, 2008 - 5:19 am

i think everything to be said is said already -- and more than once and  
necessary.
while everybody is free to repeat those rants over and over if would be  
for the best of the list if it could
STOP
right now!
please, let's move on and mark the issue "you said, i said, he said and we  
all thought" mark as solved.

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From: Jay Vaughan
Date: Thursday, July 17, 2008 - 5:39 am

Yeah, definitely with you on the 'moving on' part .. glad to see there  
is a workaround for the GPS+SD problems, and I'm also watching the SD 
+Glamo hacking with keen interest ..

j.



;
--
Jay Vaughan





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From: Nicanor Babula
Date: Thursday, July 17, 2008 - 6:34 am

C'mon guys! I'm sick of all this s**t!! Jay, if you don't like 
Freerunner go away and shut up, else stay but still shut up!



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From: François
Date: Tuesday, July 15, 2008 - 3:19 pm

Le 14075ième jour après Epoch,

First, you must be sure there is a hardware bug. For instance, nobody
knows.

Second, everybody here is aware that hardware, like software, is never
bug-free. Especially on this device. I admit that hardware bug is
harder to correct for the end-user, but it's the deal, no?

Third, ... ahem.. no third yet.

Don't forget that Openmoko Inc. is a Company trying to focus on 2
goals:
- create a free software phone
- Have an invest return (Je ne sais pas traduire "retour sur
investissement")

I've paid (but not yet received) my FR, and even if I know there can
be a hardware problem, I'll never complain about HW problems. I
imagine there will be a GTA03, smarter and cheaper, but I'm not in the
same situation of the iPhone first buyers...

They have to do the best effort to correct problems, but as far as I
know, it's the first firm saying "We sell you a piece of hardware,
with all specs we can diffuse, do what you want with it"...

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From: Kyle Gordon
Date: Tuesday, July 15, 2008 - 4:15 pm

We're very inventive with our words... similarly we say 'Return on 
investment' - normally shortened to ROI :-)

Kyle

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From: Flemming Richter Mikkelsen
Date: Tuesday, July 15, 2008 - 3:37 pm

This GPS problem shows a lot about the community vs openmoko.
Some try to help (developers?)
Some complain (regular users?)

But what is really amazing is that a fix is almost ready right after
the problem was addressed:)

People with a working GPS without SD card, will soon have a
working GPS no matter what. They should be extremely happy,
not complain.

On some phones, the GPS does not work without the SD card
and I am afraid there will be no software work-around for that.
The good thing is that this HW bug is only on a few of the phones.

I respect Openmoko and I know they do their very best to solve
these issues. It is better to let them work with solutions than to
complain.

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From: Christoph Anton Mitterer
Date: Tuesday, July 15, 2008 - 3:51 pm

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That's true,... and thanks again to all involved people :-)

However,.. one must really think why this problem didn't turn out in the
Ok,.. but what will happen to those users? Will they get a free excange
Of course,... and I can imagine that it's very annoying to the
developers who do their best to read all those whining mails, even as
some of them were quite unfriendly.
But on the other hand one should not forget that the phone was a little
bit expensive,... some of us might be still students or have little
money for other reasons... thus I can understand if some of us were very
impatient in this issue :-)

Best wishes,
Chris.

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From: Jay Vaughan
Date: Tuesday, July 15, 2008 - 11:17 pm

Yes.  That is indeed something that must be thought about.

;
--
Jay Vaughan





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From: Joerg Reisenweber
Date: Wednesday, July 16, 2008 - 6:36 am

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Tony Tu already posted a response to this: Our factory tests can't be done=
=20
under real live situation, we have to create an 'artificial' GPS signal to=
=20
test.
Our tests with this artificial signal didn't show any issue, even when test=
ed=20
with uSD inserted, which was one of the tests.
Please note: Even out in the wild there have been reports of decent fixtime=
=20
with uSD *inserted*. So this is a +-3dB issue, where we didn't recognise ou=
r=20
tests at fab were *a little* 'overoptimistic' with regard to real live. Thi=
s=20
has been addressed by our production engineers last week and already should=
=20
be fixed by now.
/jOERG

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From: Benedikt Schindler
Date: Wednesday, July 16, 2008 - 7:18 am

hi,

i think the openmoko team is doing a great job.
and everyone was onto it, to have a fast and good solution.

so i think the real interesting question now is:

Had someone tested Andy's  "fix-force-sdcard-clk-off-when-idle" patch yet?
Does it solve the problem?
And how many mA does that patch save ;)

(I still couldn't test patches. my phone hopefully arrives on 27th)

so thanks for the work  Joerg, Andy and the hole rest of the OM team.
and also thanks to the man who found out that it is a SD-Card problem.

(i still must have a fish somewhere, for all the guys who think that 
this is so bad and that it's impossible that the OM team delivered such 
a phone)


best regards to all
Beni

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From: Christian Adams
Date: Wednesday, July 16, 2008 - 7:54 am

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Am 16.07.2008 um 16:18 schrieb Benedikt Schindler:

.. slap somebody around with a big large trout ..

- -----BEGIN CONTACT BLOCK-----
   eMail:	morlac@morlac.de
		adams@stud.informatik.uni-trier.de
   Jabber:morlac@skavaer.homelinux.org
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Version: 3.1
GCS$/IT;d-;s:;a?;C++(+++)>++++;UL++++;P++(+++)>++++;
L++(+++);E---;W++;N(+);o?;K?;!w;!O;!M+>;!V;PS(+);PE;
Y+;PGP++;t+(++);5(+)>++;X(+);R*;tv->+;b++(+++);DI++;
D++(+++)>++++;G(+)>++;e+>+++;h-()>++;r++;y++;
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From: Ken Restivo
Date: Thursday, July 17, 2008 - 12:55 am

The kind of error that caused the GPS problem is very common in *every* new commercial product development. The severity varies, but I've been bitten by it many time.

I think the devs at OpenMoko handled this one very, very well. And, I think that most of the users handled it very, very well too. The heroes of this story are of course whomever at OpenMoko came up with and implemented the fix, but also the user in Germany who isolated the bug down to the SD card through careful testing. That is the kind of cooperation that shows the value of Free Software.

What was the time diff between the moment that the SD card was isolated as the source of the problem, and when a software fix was found, tested, and made available? Two days? One day? That's amazing. Hats off to everyone.

-ken

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From: Christophe Badoit
Date: Wednesday, July 16, 2008 - 12:24 am

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Hash: SHA1


A lot of "regular" users are not complaining...

Although they patiently wait for an answer =)


(I didn't know there were "regular users" among openmoko users)

- --
Christophe Badoit
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From: Jay Vaughan
Date: Tuesday, July 15, 2008 - 2:19 pm

I think you mean 'solution to the GPS problem'.  Nothing else is going  
to stop the whining.

;
--
Jay Vaughan





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From: nick loeve
Date: Tuesday, July 15, 2008 - 10:04 am

Hi


I do this using the utility at
http://svn.openmoko.org/developers/matt_hsu/agps-online/

Using my account details and current location i can get agps data
loaded, but it still makes no difference for me getting a fix if the
sd card is still in place.




-- 
Nick Loeve

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From: Timo Jyrinki
Date: Tuesday, July 15, 2008 - 10:37 am

Yes, that doesn't help getting the fixes. However I did find that if I
managed to get a fix to satellites with the SD card in use, the fix
stayed extremely well where ever I went - so if the SD card
interference with GPS could be lessened just for the duration of
getting the fixes, it could be enough. It could be automatized as
well.

-Timo

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From: Joerg Reisenweber
Date: Tuesday, July 15, 2008 - 2:12 pm

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That's quite about what Andy's kernelpatch is doing!
Stay tuned!
/j

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From: W. B. Kranendonk
Date: Tuesday, July 15, 2008 - 8:16 am

It takes removal of the battery to insert the SD, so it's a bit of a cumbersome solution indeed ;-)


      

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From: Joerg Reisenweber
Date: Tuesday, July 15, 2008 - 2:00 pm

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first of all, if you wouldn't break the tthread by creating a new one inste=
ad=20
of answering, everybody would understand much better..

wrong: probably your statement which I don't see now for you borked the thr=
ead
Don't try: probably you will destroy your Neo and won't gain anything

/j

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Previous thread: NEWBIE : beginning development in openmoko by Rahul Ramasubramanian on Tuesday, July 15, 2008 - 5:46 am. (3 messages)

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