[linux-dvb] Re: can't record some channels with vdr and a nova-s budget card.

[Johannes Stezenbach <js@convergence.de>]

Claas Hilbrecht wrote:
> >If you get this errors with the signal from above, the frontend
> >is not the problem. It could be a DMA problem.
> 
> I don't think so. If there's a DMA problem the RTL recording should be 
> broken also. Even if I swap the cards so that the "broken" records RTL and 
> the "fine" one records Sat1 the error will be the same. If any part of the 
> hardware is broken the error should stay on the broken card.

By "DMA problem" I meant "problem with the DMA related driver routines".
Jon Burgess fixed those about a month ago, but maybe some corner case
is still buggy?

> Please note: I'm very glad that someone with enough experience starts to 
> help. I'm willing to do nearly all kind of test for you, even buy a 
> different budget card. If I look at this card 
> <http://www.usa-x.org/1shop/images/budget2.jpg> it looks very different 
> from mine. Maybe the card I use is uncommon and need a special handling in 
> some way? I can even arrange ssh access to the machines if this is required.

Thanks for the offer, but the ugly truth is that I don't even have
a Nove/Budget card in my system, and I have no time for it. The last
driver fixes were done by Jon Burgess.

Anyway, the programs (or services or channels, but not "senders") you
reported (Sat1, Pro7, Pro7 Oesterreich, Pro7 Schweiz, Kabel 1, Neun Live, DSF,
HOT, N24, VIVA) seem all to be on the same transponder. So if all other
progams can be recorded OK, it would rule out a driver problem.

I can think of only one possibility:
Somehow the frontend output is disturbed by some interference. Then the
frontend reports good signal, but the saa7146 sees errors. But OTOH
the transport_error_indicator is set for many packets, and this is
set by the frontend -> the femon output is bogus and you ahve a bad
signal.

HTH,
Johannes


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