GPS turns off in standby mode

I've written a program that reads GPS coordinates, and it works
perfectly unless the device enters in standby mode, then it stops
receiving coordinates. I can deactivate the standby mode in Settings,
but that would keep everything turned on and it would waste too much
power. I want it to enter standby mode except for the GPS device.

I've read the reference of the GPS Intermediate Driver, and the
description of the Registry keys related to it, and there isn't any
setting to configure this.

Any ideas?

(Windows Mobile 5, Fujitsu-Siemens T830)

Scott
Tue Oct 09 09:38:20 PDT 2007

Toni Casueps <casueps@hotmail.com> wrote:
>
>I've written a program that reads GPS coordinates, and it works
>perfectly unless the device enters in standby mode, then it stops
>receiving coordinates. I can deactivate the standby mode in Settings,
>but that would keep everything turned on and it would waste too much
>power. I want it to enter standby mode except for the GPS device.

How's your app going to run when the device is in standby mode?

Could you just display the screen's backlight to conserve power?

--
--------- Scott Seligman <scott at <firstname> and michelle dot net> ---------
I'm the one that has to die when it's time for me to die, so let me
live my life, the way I want to.
-- Jimi Hendrix

Toni
Tue Oct 09 10:32:26 PDT 2007

Scott Seligman escribió:
> Toni Casueps <casueps@hotmail.com> wrote:
>> I've written a program that reads GPS coordinates, and it works
>> perfectly unless the device enters in standby mode, then it stops
>> receiving coordinates. I can deactivate the standby mode in Settings,
>> but that would keep everything turned on and it would waste too much
>> power. I want it to enter standby mode except for the GPS device.
>
> How's your app going to run when the device is in standby mode?
>
> Could you just display the screen's backlight to conserve power?
>


Perhaps it's not really a standby mode; I think that everything keeps
running but it turns off screen backlight, GPS, Wifi, Activesync, and so
on. In that case I guess there must be a way to tell the system which of
these devices should be turned off and which shouldn't.

I'll also search in the WM Reference about turning off the backlight as
you suggested.

Dick
Tue Oct 09 12:24:35 PDT 2007

Hi,

>>
In that case I guess there must be a way to tell the system which of
these devices should be turned off and which shouldn't.
<<

I don't think that sort of granualarity exists.

Dick

--
Richard Grier, MVP
Hard & Software
Author of Visual Basic Programmer's Guide to Serial Communications, Fourth
Edition,
ISBN 1-890422-28-2 (391 pages, includes CD-ROM). July 2004, Revised March
2006.
See www.hardandsoftware.net for details and contact information.

John
Thu Oct 11 13:57:13 PDT 2007

Yes - unfortunately there's not such a knob to turn this stuff off, at least
from the Windows Mobile OS standpoint. I'm wondering if maybe your device
OEM has some sort of "turn off power expensive stuff" and that's why you're
seeing backlight, GPS, wifi, etc turn off?

Also I'm wondering if device is in stand-by after all and it just wakes up
really fast when you touch it again by some chance? A small app that say
print something to screen every 1/2 second could easily show if it was still
running when back-light turned off or if it really was a standby.

--
John Spaith
Senior Software Design Engineer
Windows CE Networking
Microsoft Corporation

http://blogs.msdn.com/cenet/.

This posting is provided "AS IS" with no warranties, and confers no rights.
You assume all risk for your use. © 2007 Microsoft Corporation. All rights
reserved.

"Dick Grier" <dick_grierNOSPAM@.msn.com> wrote in message
news:ufupDoqCIHA.1168@TK2MSFTNGP02.phx.gbl...
> Hi,
>
>>>
> In that case I guess there must be a way to tell the system which of
> these devices should be turned off and which shouldn't.
> <<
>
> I don't think that sort of granualarity exists.
>
> Dick
>
> --
> Richard Grier, MVP
> Hard & Software
> Author of Visual Basic Programmer's Guide to Serial Communications, Fourth
> Edition,
> ISBN 1-890422-28-2 (391 pages, includes CD-ROM). July 2004, Revised March
> 2006.
> See www.hardandsoftware.net for details and contact information.
>