Re: 1199:6832 Sierra Wireless, Inc. MC8780 not working with NetworkManager 0.8.3.998 / ModemManager 0.4

[Gerd Bavendiek <gerd bavendiek googlemail com>]

I really would test if someone provides packages.

Am 20.05.2011 09:38, schrieb Pantelis Koukousoulas:
> On Fri, May 20, 2011 at 10:10 AM, Aleksander Morgado
> <aleksander lanedo com>  wrote:
>    
> >      
> > > >   From a cursory reading of the bug reports you cited it seems like some
> > > > sierra modems crash when ModemManager sends CFUN=1 to them.
> > > >
> > > > Can you help verify if this is indeed the case with yours as well?
> > > >
> > > >          
> > So it really seems that not only Wavecom modems get a whole software
> > restart (including USB stack) when they get AT+CFUN=1. The thing is, is
> > removing the power-up command a solution for *all* Sierra modems or are
> > there any Sierra modems that really need the power-up command? If so,
> > we'll probably need to disable the power-up only for specific models,
> > like the one reported in the bug; or the other way around, enable it
> > only for only some specific models.
> >      
>  From reading the cited bug reports and from general "instict" I would think
> that probably some of them need CFUN=1 and others crash when they get it
> so the best thing to do is enable it selectively. (We can start from this
> USBID and expand).
>
> Unfortunately I don't have the device myself, so I can't test.
>
>
>    
> > Wasn't that patch already applied to Ubuntu's MM? According to the logs
> > in https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/459052
> > that was written by Alexander Sack long ago, and possibly applied in
> > Ubuntu... (comment #7?)
> >      
> It was probably applied to ubuntu once but somehow it got dropped (I think
> during the karmic ->  lucid transition if I read well).
>
> In the current version (natty) there is no such patch from what I could see.
>
> In any case, a distro-local patch is really a bad idea for solving this type
> of problems, especially when you have such a friendly and responsive
> upstream like in this case.
>
> Unfortunately I don't have any modemmanager experience or time to
> implement the quirk "the right way", so if someone can start from
> the previous attached patch and fix the problem correctly, it would be
> great :)
>
> Thanks,
> Pantelis
>    


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Gerd Bavendiek                                  Linux Users check out:
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