[vdr] vdr-1.3.21: video data stream broken

Vladimir Shved vshved at logistic-systems.com
Tue Feb 15 18:47:11 CET 2005

I think this bug only can be reproduced if you are using 4x1 diseqc
switches. I have exact same problem on my setup and I traced it out to
diseqc switches. Every time one of your cards switches one switch while
other card is recording, the diseqc signal goes around LNB to another diseqc
switch and moves its position too, and other card, which is recording, loses
signal and you get VDSB. I don't have scope but I've put the cards in
different machines and if I set one of the machines to record while I'm
flipping channels on second machine, the first one would got VDSB or if I'm
not recording, I'd just lose signal on first machine. If I use only one,
either machine, at the time, stuff works without any problems. In my
opinion, the only way to resolve this is to get diseqc-multiswitch.

Another possibility is your hardware setup, i.e. one or all of your Nexus
cards are using bad PCI slots or sharing IRQ with very incompatible devices.
Try moving cards to different PCI slots to resolve IRQ issues. 

> -----Original Message-----
> From: vdr-bounces at linuxtv.org [mailto:vdr-bounces at linuxtv.org] On Behalf
> Of sn123py vdr user
> Sent: Tuesday, February 15, 2005 6:23 AM
> To: Klaus Schmidinger's VDR
> Subject: Re: [vdr] vdr-1.3.21: video data stream broken
> hm, but with same environment, vdr-1.3.17 (with nearly all plugins
> enabled)
> everything works?! Is this error introduced with > 1.3.17 ?
> regards,
> Friedhelm.
> --On Dienstag, 15. Februar 2005 14:08 +0100 Carsten Koch
> <Carsten.Koch at icem.com> wrote:
> > sn123py vdr user wrote:
> >> Hi,
> >>
> >> i get some fatal errors when recording more than one timer. This error
> >> does not occur if recording only one timer.
> >>
> >> I use vanilla vdr-1.3.21 without any plugin
> >> dvb Version linux-dvb.2004-12-26.
> >>
> >> my DVB-Cards are two NEXUS-s Cards.
> >>
> >> The output from syslog and the strace from vdr are available at:
> >>
> >> http://tvmovie2vdr.vdr-developer.org/logs/VideoDataStreamBroken.tgz
> >> (80kb)
> >>
> >> if i can do anything that helps finding this error, let me know.
> >
> >
> > This is a known bug.
> > Several worarounds are availabe, but no fix yet.
> > The easiest workaround is to disable the EPG scan in the EPG setup menu.
> > Search the mailing list for details.
> >
> > Carsten.

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