Power Management on Neo1973

[Tim Niemeyer]

Hallo Nils,

i searched on this, but didn't found what i though about...
found something else:
http://lists.openmoko.org/pipermail/buglog/2007-September/005155.html


* Nils Faerber <nils.faerber at kernelconcepts.de> [14-01-08 10:23]:
> From: Nils Faerber <nils.faerber at kernelconcepts.de>
> To: List for OpenMoko community discussion <community at lists.openmoko.org>
> Subject: Re: Power Management on Neo1973
> Date: Mon, 14 Jan 2008 10:23:35 +0100
> Organization: kernel concepts
> User-Agent: Thunderbird 1.5.0.14pre (X11/20071023)
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> 
> Michael Shiloh schrieb:
> > Nicolas Linkert wrote:
> >> On Thu, 10 Jan 2008 11:41:09 +0100, "Nils Faerber"
> >> <nils.faerber at kernelconcepts.de> said:
> >> <snip>
> >>> So buttomline is I would not see it *that* black. Let's hope for the new
> >>> modem firmware since the modem is currently the biggest standby current
> >>> eater.
> >>
> >> I was under the impression that the last modem update occured because
> >> some SIM cards were not recognized. 
> > 
> > That is correct.
> > 
> >> Is there a new update of the modem
> >> planned that is going to deal with power management?
> > 
> > No. I've never heard of anything even remotely like this.
> 
> Well, there were discussions, I would have to go back in the
> mailinglist, that the earlier GSM firmware version (up to the latest
> shipped firmware) were not able to do low-power standby, which means
> still being connected to the GSM and being able to receive calls/SMS but
> be in a lower power state than full operation. This is/was supposed to
> be the standby mode of the modem. And since this did not work, and
> current measurements prove this to be quite likely, it was my assumption
> that a later firmware would also address this problem.
> If it does not then this would really be pityful. With only the GSM
> sucking 20-40mA we will never reach any sane standby time.
> 
> > Michael
> Cheers
>   nils faerber
> 
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Tim Niemeyer
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