[mythtv-users] dual tuner setup

[Raymond Wagner]

On 3/13/2011 18:29, tim draper wrote:
> the card is a TBS6981 dual DVB-S2 card, and receives the same channels 
> from both inputs. both inputs are setup and detect channels. channel 
> editor/mythweb shows everything twice so things appear to be working ok.

If that is the case, then you screwed up.  If both inputs receive the 
same list of channels, they should be sharing a single Video Source, and 
you should have only scanned for channels once.

> so i set a recording going, and it sucessfully records. however, while 
> this recording is inprogress i can only switch between recording on 
> the same multiplex.
> i obviously havent set something up right, but i cant find any 
> documentation on how to set this up.

No, this is expected behavior.  MythTV allows simultaneous recording on 
a single tuner through the use of 'virtual tuners'.  By default, MythTV 
will set up two per digital tuner.  If your LiveTV session grabbed a 
virtual tuner already in use by a scheduled recording, that virtual 
tuner will not be able to force the physical tuner off that multiplex, 
as it would disrupt the existing recording.  You will have to switch 
tuner cards, either through the 'm' menu, or though the key binding.