[mythtv-users] Multiple backends not working together

[Jon Dye]

Hi,

I've had a single backend with a dvb tuner and a seperate frontend 
working for a while with no problems.  Recently I acquired an analog tv 
tuner card which I put in the frontend machine and I'm now trying to get 
it working with the existing backend as the master.

I created a second source on the master backend and ran mythfilldatabase 
as the two cards have a different (but overlapping) set of channels they 
can receive.  I then ran setup on the machine with the new card and 
configured all the IPs, the card and the channels.  Without the new 
frontend started I can still watch all the channels from the existing 
backend fine.  When I start the new backend I can only watch channels 
from the new backend and attempts to select one of the other channels 
results in an error in the (new) backend log about not being able to 
tune to the relevant channel.  It seems like it can't switch between 
watching live tv across different backends, is this a restriction of 
myth or have I set something up incorrectly?

Any help would be appreciated as I can't see what I've done wrong and I 
havn't found anything about this problem in any of the guides I've read?

JD