[mythtv-users] Can't watch live TV

[John Pilkington]

On 04/02/14 22:02, Jean-Yves Avenard wrote:
> Hi
>
> On 5 February 2014 07:32, R. G. Newbury <newbury at mandamus.org> wrote:
>
>> General points to consider:
>> It is useful to set all digital tuners to provide for only ONE tuner
>> instance, at first, until you are sure that the tuner(s) work correctly.
>> (Set 'Max Recordings' to 1, under 'Recording Options', for each digital card
>> in Card Setup).
>
> This is a very bad advice.
>
> Due to how myth is handling the creation of recorder; doing like you
> describe will break the multirec functionality.
>
> You do *not* want to set it to a max recordings of 1; and then later
> change it to something else.
>
> If you change the number of max recordings, you should first delete
> the card, and then re-add it. By doing so however, the number sequence
> of recorders won't be continuous.
>
> If you want it to be continuous: 1,2,3,....n then you must delete all
> capture cards and re-add them all one at a time'
>
> this is very inconvenient.
>
>
>>
>>
>> If you are using 2 tuners of the same type, you should determine that the
>> udev rules for those tuners produce consistent device placement on boot: eg.
>> tuner 1 should always show up as /dev/video0 etc etc.. (Lots of posts on the
>> list about this, and articles in the wiki.)  This does not apply to
>> dual-tuner cards or tuners like the hdhomerun which already know that they
>> are twinned, but both 'sides' of these must be set up as individual tuners
>> and named as such.
>
> Again, this serves no purpose for digital TV capture card.
> You can't use as device name in mythtv-setup anything but something
> with the path : /dev/dvb/adaptorN
>
> Don't see much the point of having the tuners in a specific order, as
> all things being equal which one is going to use is irrelevant.

But all things aren't necessarily equal.  I have cards that do DVB-T and 
one that does DVB-T2, and I tried setting them up together on my main 
FE/BE box this week.  I needed one source for HD+SD and one for SD only. 
The order of doing things in mythtvsetup turned out to be important and 
I wasn't happy with my first effort.