[mythtv-users] LiveTV attempts to tune unavailable channel when entering LiveTV

[Peter Bennett]

On 04/18/2017 11:14 PM, Stephen Worthington wrote:
> On Tue, 18 Apr 2017 19:18:53 -0700, you wrote:
>
>> So I've got an interesting situation that I haven't quite been able to
>> figure out.
>>
>> My parents system has two HDPVR connected to cable boxes, and an
>> HDHomeRun connected to an antenna. So both have different channel
>> sources.
>>
>> I have the system set up so that when selecting Live TV the backend
>> will first try the HDPVR since they have more channels available to
>> them, then fall back to the HDHR if both are recording.
>>
>> However, sometimes when both HDPVR are recording the backend will try
>> to enter live tv on the HDHR on a channel that is not in the source
>> channel lineup for the HDHR, which causes live tv to fail. My mom is
>> not a fan of that.
>>
>> I used to be able to go into the cardinput table and change the start
>> channel number to one the HDHR can tune and that would fix the issue.
>>
>> Since I recently upgraded their setup to 0.28 I'd like to see if I
>> can't resolve the issue of the backend trying a channel that source
>> can't use and having to do some SQL intervention to fix it. If anyone
>> has figured out how and why to fix it?
>>
>> I also now need to see how to fix the startchan issue in 0.28...
>>
>> thanks!
> You can still change the startchan with SQL - it is now a column in
> the capturecard table.  And you can go to the Guide and use M > Watch
> This Channel to avoid having to use the SQL fix.  But it would be nice
> to have a real fix in the code as this is a very longstanding problem.
>

Do you have different sources set up in MythTV for the different types 
of tuner? Each type of tuner should have a different source and a lineup 
with the appropriate channels for that tuner type. Then it will not try 
to tune a channel that cannot be received on a particular tuner. This 
setup works well, I had it for a couple of years.

If it is trying to tune a channel on a tuner where the source for that 
tuner does not have the channel, that is a bug and we should look into it.

Peter