[linux-dvb] Twinhan Cab/CI 2031: always need to tune twice

Zoilo Gomez zoilo at xs4all.nl
Fri Aug 25 00:40:58 CEST 2006

Hi Raido,

Good to hear your results.

I can confirm your periodic crashing problem with CAM-modules 
(Nagravision in my case); if I wait long enough then eventually the 
system will recover though. I use 'vlc' (http://www.videolan.org); with 
'-v' flag (verbose) I find that in those cases all over sudden I get a 
lot of 'header' problems. FTA does not seem to have this problem, 
however with FTA I also sometimes experience hiccups, where it seems 
that the tuner looses the signal lock temporarily.

In the mean time I have given up, and these issues, together with the 
'tuning twice problem', have made me decide to drop the Twinhan 2031 
solution and focus on the KNC ONE instead. With KNC ONE I have a stable 
solution without all these problems, although I need 2 PCI-cards 
(separate DVB-C card and CI-module card).

Just hoping that the Twinhan Mantis solution will be better (when the 
drivers are ready).




Raido wrote:

> Hi,
> So I did some testing of that driver I installed last week. I still 
> don't have a clear opinion about the tuning twice issue, but it mostly 
> seems to work well with mythtv and zap/dvbstream, though I have 
> managed to produce some nonexistent/empty or unreadable recordings 
> with both. But the main problem I encountered is with the newfound CAM 
> ability. Basically it works, but the recordings have almost 
> periodic(probably not) errors in them that eventually crash players, 
> or sometimes make them skip. This occurs with mythtv more seriously, 
> but zap/stream also suffers from this. FTA recordings are fine. I'm a 
> bit stunned, I don't think this is a signal/quality issue. Could it be 
> the CAM's fault? How to diagnose this, what to log?
> Almost there,
> Raido
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