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Configuration of DVB capture cards in Mythdora?

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  • user warning: Table './drupal_gding/cache_filter' is marked as crashed and should be repaired query: UPDATE cache_filter SET data = '<p>Hi folks.</p>\n<p>Apologies in advance if I\'m posting this in the wrong forum.</p>\n<p>I have recently been asked to take over the running of a hotels IPTV system, which is based on Mythdora v5. For the past few months, the server and the associated Amino Set top boxes have been running along fine.</p>\n<p>However, a few weeks ago, BBC3 and 4 stopped working. All that happens when the appointed time for them to start transmitting rolls around is a black screen. </p>\n<p>Since the one decoder card (its a Conexant 8901 model, best I can guess) also decodes BBC1, BBC2, Cbbc, and Cbeebies, I\'ve ruled out hardware failure on the card.</p>\n<p>What I suspect is causing the problem is a change of the cards configuration. However, thats where I grind to a halt.</p>\n<p>Its Linux, and I\'m a a pure Windows man myself. End result of this slight lack of knowledge is I\'ve no idea how to check or edit the configuration on the video capture cards.</p>\n<p>Would anyone be able to point me in the right direction as to how to check the cards are running and edit their setup if needs be?</p>\n<p>Thanks in advance :)</p>\n<p>David.</p>\n', created = 1369312150, expire = 1369398550, headers = '', serialized = 0 WHERE cid = '1:4108202720ab32feec6d796407b4bd72' in /var/www/mythdora/html/includes/cache.inc on line 109.
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  • user warning: Table './drupal_gding/cache_filter' is marked as crashed and should be repaired query: UPDATE cache_filter SET data = '<p>I would start by looking at this post: <a href=\"http://www.mythdora.com/?q=node/4848\">http://www.mythdora.com/?q=node/4848</a> and checking the logs for errors. If you find some, post them here (or Google them and go from there).</p>\n<p>Second, I would schedule a recording for BBC3 and then check the backend status while that recording is active. Does it show that the tuner is recording that channel?</p>\n<p>You can find the tuner model number by running \'lspci\' from the command prompt; that lists everything on the PCI bus in considerable detail. If it lists the tuner more than once, then you have more than one tuner (or a dual chip/channel tuner card). If that is the case then it could be a hardware failure, and BBC3 and 4 just happen to get assigned to the bad chip every time.</p>\n<p>After making a recording on BBC3/4, is there a recorded file on the disk? Is it about the right size (3 to 7 GB/hour for HD)? If so, try playing it with mplayer, VLC, etc. If the file exists, is the right size, but won\'t play, it could still be the tuner card. Recording an HD program just means grabbing the data from the card and throwing it onto the disk - so if the file exists but won\'t play, it could be the card.</p>\n<p>I should add that the nice thing about Linux is that pretty much everything is documented, and all of the moving parts are out in the open where you can see them. Windows does a great job for some things, but many of the moving parts are hidden and not documented. The downside of Linux is that not all of the documentation is easy to find! There are, however, some good communities; hopefully we can help this experience to be a good one.</p>\n', created = 1369312150, expire = 1369398550, headers = '', serialized = 0 WHERE cid = '1:2a8d056c2a8c7608b27e0a16e7bdb94c' in /var/www/mythdora/html/includes/cache.inc on line 109.
Submitted by vaughandavid on May 28, 2010 - 7:17am

Hi folks.

Apologies in advance if I'm posting this in the wrong forum.

I have recently been asked to take over the running of a hotels IPTV system, which is based on Mythdora v5. For the past few months, the server and the associated Amino Set top boxes have been running along fine.

However, a few weeks ago, BBC3 and 4 stopped working. All that happens when the appointed time for them to start transmitting rolls around is a black screen.

Since the one decoder card (its a Conexant 8901 model, best I can guess) also decodes BBC1, BBC2, Cbbc, and Cbeebies, I've ruled out hardware failure on the card.

What I suspect is causing the problem is a change of the cards configuration. However, thats where I grind to a halt.

Its Linux, and I'm a a pure Windows man myself. End result of this slight lack of knowledge is I've no idea how to check or edit the configuration on the video capture cards.

Would anyone be able to point me in the right direction as to how to check the cards are running and edit their setup if needs be?

Thanks in advance :)

David.

‹ Garbled sound? any ideas? mythfrontend hangs on startup ›

Configuration of DVB capture cards in Mythdora?

Submitted by Gandalf on May 29, 2010 - 3:06pm.

I would start by looking at this post: http://www.mythdora.com/?q=node/4848 and checking the logs for errors. If you find some, post them here (or Google them and go from there).

Second, I would schedule a recording for BBC3 and then check the backend status while that recording is active. Does it show that the tuner is recording that channel?

You can find the tuner model number by running 'lspci' from the command prompt; that lists everything on the PCI bus in considerable detail. If it lists the tuner more than once, then you have more than one tuner (or a dual chip/channel tuner card). If that is the case then it could be a hardware failure, and BBC3 and 4 just happen to get assigned to the bad chip every time.

After making a recording on BBC3/4, is there a recorded file on the disk? Is it about the right size (3 to 7 GB/hour for HD)? If so, try playing it with mplayer, VLC, etc. If the file exists, is the right size, but won't play, it could still be the tuner card. Recording an HD program just means grabbing the data from the card and throwing it onto the disk - so if the file exists but won't play, it could be the card.

I should add that the nice thing about Linux is that pretty much everything is documented, and all of the moving parts are out in the open where you can see them. Windows does a great job for some things, but many of the moving parts are hidden and not documented. The downside of Linux is that not all of the documentation is easy to find! There are, however, some good communities; hopefully we can help this experience to be a good one.

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