[mythtv-users] Myth .27 no longer has pre-tune channel setting.

[Michael T. Dean]

On 10/23/2013 01:45 PM, Mike Perkins wrote:
> On 23/10/13 17:49, Karl Newman wrote:
>> On Wed, Oct 23, 2013 at 7:22 AM, Michael T. Dean 
>> <mtdean at thirdcontact.com>wrote:
>>
>>> On 10/23/2013 10:01 AM, Stefan Jones wrote:
>>>
>>>> **
>>>> Thanks, I'm glad I wasn't just imagining this, or that importing and
>>>> updating my database had broken something.
>>>>
>>>> I did search the list archives on the Wiki and the bug database, but
>>>> "pretune" didn't seem specific enough.
>>>>
>>>>
>>> Well, you'll find a lot more if you use the proper terminology for
>>> searching.  As shown in my previous e-mail, the setting is called, 
>>> "Preset
>>> Tuner to Channel".
>>>
>>>
>>>> Unless someone has another suggestion, I will manually record on 
>>>> channel
>>>> 3 and set the STB's channel manually until this gets fixed.
>>>>
>>>
>>> A better approach would be to change your external channel change
>>> script--that you need anyway--to issue the appropriate v4l2ctl 
>>> commands to
>>> a) set the TV format (NTSC or PAL), and b) tune channel 3 on the 
>>> PVR-150
>>> before it does its normal work of changing the STB channel.
>>
>> Is there a good reason not to just restore the "Preset Tuner to Channel"
>> field? Suggesting that people put a workaround in the channel change 
>> script
>> is not user-friendly. This is a basic function for analog tuner cards 
>> that
>> has worked flawlessly for possibly the entire lifetime of Myth, and 
>> is even
>> more important now that analog cards are useless as actual tuners other
>> than as endpoints for set top boxes, which require tuning a fixed 
>> channel.
>>
> Does your STB not have a composite or component out? That may be a 
> better solution than tuning RF channel 3 as you'll get better picture 
> definition.
>
> You would require a single v4l2ctl command before the backend starts 
> up to select the appropriate input on your PVR150 (and choose the 
> right input in the tuner setup screens).

If using Composite or S-Video, there's no need to pre-select the input.  
MythTV will do so every time it uses the card (just in case someone 
messes with the card between recordings or whatever).

Mike