[Gta04-owner] Some remarks on qtmoko v41

Dr. H. Nikolaus Schaller hns at goldelico.com
Tue Mar 20 11:02:46 CET 2012


Am 20.03.2012 um 10:33 schrieb Sven Dyroff:

> Hello Andreas, 
> 
> >> 2.) Power management
> >> 
> >> If I followed this mailing list right, it was mentioned that poweroff 
> >> should now go down to about 100 µA for RTC. I cannot confirm this. It's 
> >> the same as before: When I load the battery to 100% full, then poweroff 
> >> the phone for 12 hours and then poweron it again, battery is then less 
> >> than 70% full. I tried two cases, both with the same result:
> >> 
> > Was the modem in the right state before powering down?
> > So lsusb did not show the umts module. (you know /sys/class/gpio/gpio186/value?)
> 
> I know that there was a long diskussion about how to manage to have the modem in the right state at all the time. As far as I understood it this resulted in a solution, that is not very nice but working, but I can be wrong. So thanks for the hint. I'll check this. 

Yes, the modem must be explicitly shut down on "poweroff" or it will keep running.
I don't know if this is already implemented in the 3.2-kernel since Neil has a A3
board and therefore can't test it for an A4 board.

Nikolaus

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