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[Monitor_Inc <556204@xxxxxxxxxxxxxxxxxx>]

Me too.

I have just done a clean install with the latest Ubuntu and Mythtv on a
PC with a Nebula PCI card.

I can watch live TV by running mplayer from a terminal, but Mythtv will
not find any channels.

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https://bugs.launchpad.net/bugs/556204

Title:
  myth-backend started before kernel driver it needs

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  Fix Released
Status in “mythtv” package in Ubuntu:
  Fix Released

Bug description:
  In Lucid there isn't a dependency for myth-backend on kernel modules
  being loaded.  The result is that it can run before the kernel module
  for the hardware is finished loading.  The error looks like this in
  /var/log/myth/mythbackend.log

  2010-04-05 22:06:05.431 DVBChan(3:/dev/dvb/adapter0/frontend0) Warning: Opening DVB frontend device failed.
  			eno: No such file or directory (2)
  2010-04-05 22:06:05.482 DVBChan(3:/dev/dvb/adapter0/frontend0) Error: Failed to open DVB frontend device due to fatal error or too many attempts.
  2010-04-05 22:06:05.525 New DB connection, total: 3
  2010-04-05 22:06:05.550 Connected to database 'mythconverg' at host: localhost
  2010-04-05 22:06:05.566 mythbackend: Problem with capture cards: Card 3failed init
  2010-04-05 22:06:05.633 DVBChan(4:/dev/dvb/adapter0/frontend0) Warning: Opening DVB frontend device failed.
  			eno: No such file or directory (2)
  2010-04-05 22:06:05.649 DVBChan(4:/dev/dvb/adapter0/frontend0) Error: Failed to open DVB frontend device due to fatal error or too many attempts.
  2010-04-05 22:06:05.761 mythbackend: Problem with capture cards: Card 4failed init
  2010-04-05 22:06:05.783 DVBChan(5:/dev/dvb/adapter1/frontend0) Warning: Opening DVB frontend device failed.
  			eno: No such file or directory (2)
  2010-04-05 22:06:05.790 DVBChan(5:/dev/dvb/adapter1/frontend0) Error: Failed to open DVB frontend device due to fatal error or too many attempts.
  2010-04-05 22:06:05.800 mythbackend: Problem with capture cards: Card 5failed init
  2010-04-05 22:06:05.807 MythBackend, Error: No valid capture cards are defined in the database.
  			Perhaps you should re-read the installation instructions?
  2010-04-05 22:06:05.817 mythbackend: No capture cards are defined: Please run the setup program.

  My current hack, which fixes the problem but is totally the wrong
  thing to do, is to add the following line to /etc/init/mythtv-
  backend.conf

  /bin/sleep 60

  Instead a proper dependency needs to be added in there, I just don't
  know enough about upstart to know how to do it.