[mythtv-users] one single channel stops working (DVB-C, both LiveTV and recordings)

[Jan Schneider]

Zitat von Joachim <joge at upb.de>:

> Hello,
>
> crawling online resources I couldn't find a solution for my problem,  
> not even anyone else experiencing the same issues. Hopefully someone  
> of you can help me:

Then you didn't look closely enough. ;-) I reported exactly the same a  
few day ago. Good to see that I am not the only one, and that there is  
a common scheme. See  
http://mythtv.org/pipermail/mythtv-users/2009-March/250865.html

> I had a perfectly working mythTV DVB-C (Germany) installation until  
> end of february. Out of a sudden, without me chaning anything, one  
> single channel (ZDF) stopped working. It doesn't work in LiveTV mode  
> any more, nor do any recordings I made on this channel. 2-week-old  
> recordings from this channel which I kept, however, are still working.

Same here, also with ZDF only.

> I figured out that, when recording something on this channel,  
> recording works fine in the sense that the video data is recorded.  
> The corresponding .mpg file stored on disk seems to be ok and plays  
> perfectly when I manually play it with mplayer (also, it doesn't  
> produce any errors, warnings or other unusual output when playing it  
> with mplayer). BUT: mythTV can't play this recording! The preview  
> icons both in mythfrontend and mythweb are just black (when they're  
> created while displaying them the first time, the mythbackend  
> process does something which causes load for several minutes but  
> doesn't result in any debug output or a thumbnail icon). When trying  
> to play the recording I just get a black screen and mythfrontend  
> keeps printing "NVP: Prebuffer wait timed out 10 times." -- just  
> repeatedly this line, nothing more compared to the usual output.  
> (When deinterlacing is disabled, mythfrontend stays reactive and  
> playback can be cancelled using ESC; when deinterlacing is enabled  
> however, I've to kill mythfrontend.)
>
> I just can't get the clue what's going on here. Old recordings from  
> this channel reproducibly play and new ones don't. All other  
> channels still work. I verified that the VID and service ID of that  
> channel did not change. I also contacted the TV network and asked if  
> they changed anything in the stream format or the stream headers.  
> But they say that they didn't change anything lately.
>
> BTW: I'm running mythTV 0.21.0+fixes16838-0ubuntu3.1 on Ubuntu 8.04.

Latest 0.21.0 weekly on Ubuntu 8.10 here.

Jan.

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