ModemManager using QMI doesnt always work in the first attemp.

[José]

Seems like the log I gave was not complete. Here is a better one:

http://pastebin.com/Y24a9Y8W

At line 1849 seems like ModemManager decides to abort the connection, I am
not sure why.

On Tue, Nov 17, 2015 at 11:20 PM, Dan Williams <dcbw at redhat.com> wrote:

> On Tue, 2015-11-17 at 18:10 +0100, José  wrote:
> > Sorry for the delay.
> >
> > This is the debug log for the Telit LE910 with a Vodafone SIM:
> > http://pastebin.com/U7EBv8sr
> >
> > The test case is:
> > - Boot the device
> > - Issue: mmcli -m 0 --simple-connect=apn=ac.vodafone.es
> > This command returns: error: couldn't connect the modem: 'The
> > connection is
> > closed'
>
> It actually looks like ModemManager is getting kicked off D-Bus, which
> is usually caused by MM trying to send non-UTF-8 strings in a signal or
> D-Bus reply...
>
> Dan
>
> >
> > On Thu, Nov 12, 2015 at 1:22 PM, Aleksander Morgado <
> > aleksander at aleksander.es> wrote:
> >
> > > On Thu, Nov 12, 2015 at 1:15 PM, José <Joseddg92 at gmail.com> wrote:
> > > >
> > > > I am working with two different QMI modems (Telit LE910 and
> > > > Sierra
> > > MC7710 in QMI mode) and experimenting one issue with both of them.
> > > >
> > > > After boot I try to establish the connection:
> > > >
> > > > ModemManager &
> > > > (wait for the modem to be detected)
> > > > mmcli -m 0 --simple-connect="apn=.."
> > > >
> > > > This somtimes works, but most of the time fails. However, when it
> > > > fails,
> > > issuing
> > > > mmcli -m 0 --simple-connect="apn=.."
> > > > always works.
> > > >
> > > > I don't think it is related to the enviroment, because other
> > > > modems (or
> > > even the same Sierra MC7710 using MBIM or Direct IP) work fine.
> > > >
> > > > The common error is this (complete logs at the end)
> > > >
> > > > ModemManager[684]: [/dev/cdc-wdm0] No transaction matched in
> > > > received
> > > message
> > > >
> > > >
> > > > What could be causing that?
> > >
> > >
> > > Can you gather *debug* logs? Thanks!
> > >
> > >
> > > --
> > > Aleksander
> > > https://aleksander.es
> > >
> > _______________________________________________
> > ModemManager-devel mailing list
> > ModemManager-devel at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
>
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