[mythtv-users] Two tuners showed up

Robert McNamara robert.mcnamara at gmail.com
Fri Aug 5 23:30:47 UTC 2011

On Fri, Aug 5, 2011 at 4:25 PM, Stephen Atkins <satkins at inetdesign.org> wrote:
> On 8/5/2011 5:24 PM, Nick Morrott wrote:
>> On 6 August 2011 00:19, Stephen Atkins<satkins at inetdesign.org>  wrote:
>>> I rebuilt my master backend.  Once the DB was restored from the original
>>> I deleted all capture cards (both local and on remote backends) since I
>>> switched cards to different versions.
>>> When I created the HVR-1600 which is on the master, it seems to have
>>> created two instances of it.  So cardid 17 and cardid 18 both point to
>>> the same device.  But when I manage the cards in the mythtv-setup it
>>> only shows one.  If I change something (like time to wait for a signal)
>>> it changes both of them in the database.  In MythWeb it shows both of
>>> them.  I'm just wondering what might happen if I manually delete #18?
>>> Is there any other tables that might need cleaning up after this?
>> Sounds like the expected behaviour when you have configured a digital
>> tuner with multirec set for 2 (the default if you don't explicitly
>> change the setting) concurrent recordings. Nothing to worry about.
>> Both "virtual" tuners share the same physical tuner, hence the reason
>> why changing tuning parameters affects all entries associated with the
>> physical tuner.
> Thanks for the quick response.  That's what it is.  Just need to turn
> off that second virtual card as the 1600 can't do two digital's at once.

You misunderstand.  Multirec means it can record multiple channels
from a single multiplex with a single digital tuner.  You don't want
to turn off the virtual tuners.  It might not do you a heck of a lot
of good depending on how the cable or broadcast is engineered where
you are, but it at least allows Myth's scheduler to record multiple
things at once with *just* the one digital tuner of the card if
multiple things you want to record happen to be on the same multiplex
at the same time.


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