[linux-dvb] Re: help requested for getting out of the problems with dvb-c and UPC

["Gerhard Steiner" <GSteiner@gmx.at>]

We are using (at least me) the latest driver (dvb-20031104) from
http://www.linux-dvb.tv together with vdr-1.2.5.

vdr handles QAM etc. the right way.

Gerhard
> What program are you using?
> Mplayer and dvbstream override the modulation value with QAM_64
> 
> #ifdef NEWSTRUCT
>       feparams.frequency=freq;
>       feparams.inversion=INVERSION_OFF;
>       feparams.u.qam.symbol_rate = srate;
>       feparams.u.qam.fec_inner = FEC_AUTO;
>       feparams.u.qam.modulation = QAM_64;
> #else
>       feparams.Frequency=freq;
>       feparams.Inversion=INVERSION_OFF;
>       feparams.u.qam.SymbolRate = srate;
>       feparams.u.qam.FEC_inner = FEC_AUTO;
>       feparams.u.qam.QAM = QAM_64;
> #endif
> 
> 
> change the block to the following one may work. Good luck:)
> 
> #ifdef NEWSTRUCT
> ...
>  feparams.u.qam.modulation = modulation;
> #else
> ...
>  feparams.u.qam.QAM = modulation;
> #endif
> 
> 
> 
> Gerhard Steiner wrote:
> 
> >Hello,
> >
> >since some time a lot of people are trying to get a DVB-c card running
> >together with upc-Vienna.
> >Unfortunately we are facing some troubles (artefacts), but noone has the
> >knowledge to find a real solution (or even to find the real problem).
> >UPC-Vienna is using QAM_256, so maybe it is a problem of the driver.
> >
> >We don't know where we should start (debuging the driver),
> >changing/optimizing some parameters.
> >We already tried a lot of patches that we found in ML or the net, but
> they
> >didn't really help.
> >Maybe we have to optimize the driver.
> >
> >Is there someone (a driver developer) out there, who is willing to help
> us
> >with DVB-c?
> >
> >Any help would be really great!
> >
> >Thanks in advice
> >lg, Gerhard
> >
> >  
> >
> 
> 

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