RE: Novatel based Mobile Broadband does not respond anymore

[richter ecos de]

Hi Dan,

it has taken me very long time until I got back to this issue. I tested the patch below (which changes charset from UCS2 to IRA) you send me with modem-manager 6.0.0.0 and it works :-)

Is there any chance to get this into standard modem-manager, maybe as some kind of config option or maybe some kind of blacklist for charsets? As far as I understand this mainly effects the SMS charset, so it cannot be globally changed.

Thanks & Regards

Gerald


> -----Original Message-----
> From: networkmanager-list-bounces gnome org [mailto:networkmanager-
> list-bounces gnome org] On Behalf Of Gerald Richter - ECOS
> Sent: Friday, February 03, 2012 11:42 AM
> To: Dan Williams
> Cc: networkmanager-list gnome org
> Subject: RE: Novatel based Mobile Broadband does not respond anymore
> 
> Hi Dan,
> 
> thanks for your feedback.
> 
> I will setup a build environment for modem manger and give it a try (it will
> take some time until I get the time to do so).
> 
> In case this solves the problem, I would suggest to add a udev variable to
> configure the charset order depending on the modem type ( I don't think it's
> necessary to create an extra plugin for this special case).
> 
> Would this make sense to you?
> 
> Thanks & Regards
> 
> Gerald
> 
> 
> > -----Original Message-----
> > From: Dan Williams [mailto:dcbw redhat com]
> > Sent: Thursday, February 02, 2012 8:46 PM
> > To: Gerald Richter - ECOS
> > Cc: networkmanager-list gnome org
> > Subject: Re: Novatel based Mobile Broadband does not respond anymore
> >
> > On Thu, 2012-01-26 at 16:13 +0100, richter ecos de wrote:
> > > Hi,
> > >
> > > we've problems with a Novatel based Mobile Broadband card.
> > >
> > > The serial device doesn't respond to AT Commands after it has been
> > > initialized and a successfully registration to an apn.
> > > The modem-manager falls back in an endless loop after that behavior.
> > >
> > > Bus 004 Device 002: ID 413c:8137 Dell Computer Corp. Wireless 5520
> > > Voda L Mobile Broadband (3G HSDPA) Minicard Status Port
> > >
> > > The logfile is attached.
> > >
> > > Before we used network manager, we had a very simply umts solution,
> > which only uses a few AT commands. This did work for quite a long time.
> > >
> > > It seems that the firmware crashes on some of the AT command
> > > (coldstart
> > is necessary, to get the card working again).
> > >
> > > Any ideas?
> >
> > I've seen the firmware of my 5510 (which is basically the EU870D
> > except in ExpressCard form) crash when doing SMS-related stuff.  If
> > you're able to rebuild ModemManager, try this patch and see if that helps
> anything:
> >
> > diff --git a/src/mm-generic-gsm.c b/src/mm-generic-gsm.c index
> > 3a1c62e..be63d97 100644
> > --- a/src/mm-generic-gsm.c
> > +++ b/src/mm-generic-gsm.c
> > @@ -1260,10 +1260,10 @@ enable_failed (MMModem *modem, GError
> *error,
> > MMCallbackInfo *info)  }
> >
> >  static guint32 best_charsets[] = {
> > +    MM_MODEM_CHARSET_IRA,
> >      MM_MODEM_CHARSET_UTF8,
> >      MM_MODEM_CHARSET_UCS2,
> >      MM_MODEM_CHARSET_8859_1,
> > -    MM_MODEM_CHARSET_IRA,
> >      MM_MODEM_CHARSET_GSM,
> >      MM_MODEM_CHARSET_UNKNOWN
> >  };
> >
> > Some modems don't deal well with UCS2 and my 5510 is one of them.  The
> > charset doesn't just affect SMS so it might be causing the crashes.
> >
> > Dan
> 
> 
> _______________________________________________
> networkmanager-list mailing list
> networkmanager-list gnome org
> http://mail.gnome.org/mailman/listinfo/networkmanager-list