[maemo-developers] Power management is going to drive me mad!

[From: Benoît HERVIER]

2008/6/19 gary liquid <liquid at gmail.com>:
> George,
>
> I have a problem with my wifi at home which means when connected it will
> drain very rapidly.
> I use an ad-hoc connection which I believe prevents idling so drains my
> battery quickly.
> Other users report staying connected to their Infrastructure based wifi for
> days at a time.
>
> I personally wouldn't like my n810 programmatically deciding when to connect
> under normal situations, however I think it would be beneficial to allow the
> wifi to disconnect with the Lock slider switch.
> This all gets messy and complicated though if you want to restore the
> connection when it is unlocked since some people have roaming charges or
> other considerations.
>
> One other thing, I find lowering the screen brightness a couple of notches
> improves battery life by literally hours, might be an idea.
>
> Gary (lcuk on #maemo)
>
>
> On Thu, Jun 19, 2008 at 10:20 AM, Benoît HERVIER <khertan at khertan.net>
> wrote:
>>
>> 2008/6/19 George Nachman <maemodev at georgester.com>:
>> > Hi maemo-developers,
>> >
>> > Is it possible on the N800 to programatically shut down the wifi
>> > interface and bring it back up?
>> >
>> > I have an application that very occasionally needs network
>> > connectivity. If I leave my device connected to wifi, the battery dies
>> > too quickly. I would like to have the software turn on the wifi
>> > interface, do its thing, and then turn the interface off to conserve
>> > energy. I've considered other solutions, but I think this is the
>> > simplest answer.
>> >
>> > I thought at first that libconic could do this, but it appears not (at
>> > least not in Python: see the comment here:
>> >
>> > https://garage.maemo.org/svn/pymaemo/packages/python-conic/branches/chinook/tests/test_disconnect.py).
>> > Is it possible? I saw a veiled reference to sending d-bus messages
>> > (http://maemo.org/pipermail/maemo-developers/2007-April/009462.html),
>> > but it wasn't specific enough to turn into code.
>> >
>> > I tried running /etc/init.d/wlancond stop, but that doesn't seem to
>> > decrease power consumption.
>> >
>> > Is there a magical dbus message I can send? If I could trick it into
>> > entering/exiting flight mode, that would work too. I've been
>> > experimenting for hours with no luck.
>> >
>> > Thanks for your help,
>> > George
>> > _______________________________________________
>> > maemo-developers mailing list
>> > maemo-developers at maemo.org
>> > https://lists.maemo.org/mailman/listinfo/maemo-developers
>> >
>>
>> Hi,
>>
>> This is strange, are you sure that there isn't a process that don't
>> let the nit going into sleep mode ?
>>
>> As i keep always my wifi on and never manage it from my apps that need
>> to be connected, and i don't have any battery performance problem.
>>
>>
>> --
>> Benoît HERVIER - http://khertan.net/
>> _______________________________________________
>> maemo-developers mailing list
>> maemo-developers at maemo.org
>> https://lists.maemo.org/mailman/listinfo/maemo-developers
>
>

>however I think it would be beneficial to allow the wifi to disconnect with the Lock slider switch.
This should be an option in wifi parameters, as i like that wifi stay
connected when i lock it. :)

-- 
Benoît HERVIER - http://khertan.net/