[mythtv-commits] Ticket #4196: DVB CAM problem

[MythTV]

#4196: DVB CAM problem
-----------------------------------------+----------------------------------
 Reporter:  mattia at mattiamartinello.com  |       Owner:  ijr    
     Type:  defect                       |      Status:  new    
 Priority:  major                        |   Milestone:  unknown
Component:  mythtv                       |     Version:  0.20   
 Severity:  medium                       |     Mlocked:  0      
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 I have a mythbackend version 0.20.20070821-1 installed on a Debian Etch
 (stable) system.
 Sometimes I have to restart the backend because I see a very very
 scrambled image in live TV (you can see a photo here
 http://img112.imageshack.us/img112/8436/image00163av1.jpg).

 If I stop and restart the mythbackend all return to works good.

 When I see the scrambled images I have these logs on the backend:

 2007-08-07 20:53:54.510 MainServer::HandleAnnounce Playback
 2007-08-07 20:53:54.511 adding: camera as a client (events: 0)
 2007-08-07 20:53:54.514 TVRec(1): Changing from None to WatchingLiveTV
 2007-08-07 20:53:54.515 TVRec(1): HW Tuner: 1->1
 2007-08-07 20:53:57.057 Finished recording Soliti ignoti Identità
 nascoste: channel 4401
 2007-08-07 20:53:57.127 Finished recording Soliti ignoti Identità
 nascoste: channel 4401
 2007-08-07 20:53:57.143 Preview Error: Previewer file
 '/video/record/4401_20070807205354.mpg' is not valid.
 2007-08-07 20:53:57.165 MainServer::HandleAnnounce Playback
 2007-08-07 20:53:57.166 adding: camera as a client (events: 0)
 2007-08-07 20:53:57.168 MainServer::HandleAnnounce FileTransfer
 2007-08-07 20:53:57.169 adding: camera as a remote file transfer
 2007-08-07 20:54:00.410 Expiring Soliti ignoti Identità nascoste from
 mar ago 7 20:30:00 2007, 6 MBytes, forced expire (LiveTV recording)
 2007-08-07 20:54:29.297 TVRec(1): Changing from WatchingLiveTV to None
 2007-08-07 20:54:29.368 Finished recording Soliti ignoti Identità
 nascoste: channel 4401

 "Nick F" answered me this in the MythTV mailing list:

 > Are you using a CAM by any chance?  I was finding a similar
 > problem. I adjusted the usleep value in the dvbcam module and
 > it helped. I still need to reset my backend every two weeks
 > or so when I get a similar scrambled picture problem.
 > In my case it's a DVB problem, not a myth problem.

 I haven't solved this problem yet and I am available for testing.

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Ticket URL: <http://svn.mythtv.org/trac/ticket/4196>
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