[mythtv] Slave backend problems with livetv

Joseph A. Caputo jcaputo1 at comcast.net
Tue Mar 9 16:54:31 EST 2004

On Tuesday 09 March 2004 15:50, Daniel Sangenberg wrote:
> Joseph A. Caputo wrote:
> > I don't think you quite understood me... if you start watching
> > LiveTV on a channel tuned by one of your PVR-x50 cards, then you
> > cannot switch to a DVB channel simply by entering the channel
> > number of one of your DVB channels; you *must* use the 'Y' key (or
> > whatever you have bound to the SWITCHCARDS command) to switch cards
> > first. Likewise in reverse... if you start watching LiveTV on a DVB
> > channel, then you need to press 'Y' to switch to one of your
> > PVR-x50 cards to tune non-DVB channels.  You may have to press 'Y'
> > more than once, since you have 3 cards.  Even then, if your DVB
> > card is busy recording something, it will never switch to the DVB
> > card even if you press 'Y', until the DVB card is finished with any
> > scheduled recordings.  IIRC, when you enter LiveTV mode, it chooses
> > the first available card it finds, ordered by the card ID in the
> > database.  So, if the slave backend (with the DVB card) is up, and
> > the DVB tuner is free, *and* the DVB tuner is the first (or only)
> > non-busy tuner, then LiveTV will start up with DVB channels.  If,
> > however, the DVB tuner is busy, or is defined after one of the
> > other tuners and one of the other tuners is available, then LiveTV
> > will start up with PVR-x50 channels.  Capisci?
> That i did not know, but pressing 'Y' only jumps between the PVR-x50
> cards but i think it does try to switch to the DVB card since i get a
> QUERY_REMOTEENCDER 1[]:[]IS_BUSY in the log file if i start
> mythbackend with -v all

This is correct if your DVB card is actually busy.  If it's not really 
busy (and your slave backend is up & properly configured), then 
something's amiss, because the master backend thinks it's busy (or 


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