[maemo-users] N900 charging problems

From: Kimmo Hämäläinen kimmo.hamalainen at nokia.com
Date: Mon Mar 1 18:04:51 EET 2010
On Mon, 2010-03-01 at 16:40 +0100, ext Xavier Bestel wrote:
> Hi,
> I have a new problem today with my N900: it won't charge anymore through
> USB (pc-connected) when powered on.
> The N900 is connected via the monitor's USB hub to the pc, or directly
> from the pc's front plugs. When powered on, if I plug the cable it will
> charge for a few seconds, then stop charging and show a notification
> yellow bar saying "Défaut de charge", which roughly translated means
> "Charging defect", then charge stops.

The animation is stopped if you are not getting more power from PC than
you are using in the N900. So it could be that some process is using lot
of CPU in the N900 and causing this consumption.  This happens to me
with browser playing Youtube, for example, unless I use the dedicated
charger (that provides more power).


> I see nothing special in the N900's dmesg.
> If I turn it off, it will charge happily (the yellow led blinks slowly),
> and act as an USB key.
> This morning it was charging ok (powered on) on the wall charger.
> Does someone have an idea how to find where does that come from ?
> Thanks,
> 	Xav
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