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

[Johannes Stezenbach <js@convergence.de>]

On Tue, Nov 04, 2003 at 02:59:49PM +0100, Robert Schlabbach wrote:
> From: "Gerhard Steiner" <GSteiner@gmx.at>
> > since some time a lot of people are trying to get a DVB-c card running
> > together with upc-Vienna.
> 
> What kind of card are you using, a "budget" card or a "full featured" card
> with a TI AV7110 on it...? What demodulator chip is on it?
> 
> > 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.
> 
> Indeed, I haven't heard of QAM-256 being used anywhere before. What is the
> symbol rate and the net data rate per channel...?

http://www.linuxtv.org/mailinglists/linux-dvb/2002/11-2002/msg00421.html
DVB/apps/scan/dvb-c/at-Vienna

It seems like it used to work, at least with the VES1820 frontend...

You could check CVS for changes which might have broken QAM256 support:
http://linuxtv.org/cgi-bin/cvsweb.cgi/DVB/driver/frontends/

Good luck,
Johannes


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