[mythtv-users] 0.24 PVR-350

[Ken Smith]

Hika van den Hoven wrote:
>
> Tuesday, January 12, 2016, 12:09:35 AM, you wrote:
>
>
>
>
>> Hika van den Hoven wrote:
>>>
>>> Monday, January 11, 2016, 10:47:08 PM, you wrote:
>>>
>>>> Hi Myth people
>>>> Please forgive this question about an old system. I have an 0.24 system
>>>> on Centos 6 that has a number of DVB cards and a PVR-350 that worked
>>>> well in the pre digital era, but I have never configured it on the 0.24
>>>> setup.
>>>> I wanted to capture the UHF Analog output from a Cable TV box. So I
>>>> configured the PVR-350, which is /dev/video4, as an IVTV device, mapped
>>>> the inputs and run mythtvsetup and it shows up as capture device 18.
>>>> I've manually entered a channel number and a frequency but I get errors
>>>> like:-
>>>> 2016-01-09 19:23:52.619 Channel(/dev/video4) Error:
>>>> GetCurrentChannelNum(801): Failed to find Channel
>>>> 2016-01-09 19:23:52.637 Channel(/dev/video4)::TuneTo(801): Error, failed
>>>> to find channel.
>>>> If I tune the PVR-350 to the right channel with v4l2-ctl and run ffplay
>>>> /dev/video4 I get the output I'd expect so the PVR-350 is working.
>>>> I must have missed some setting somewhere - but what?
>>>
>>> Which connection did you use in Input connections?
>>> Depending on how you connected it, you have to use S-Video 1 or
>>> Composite 1 NOT Tuner 1, if the cable box does the tuning!
>>>
>> Its the Tuner input I'm using as the signal from the Cable box is PAL-I
>> on UHF at 735.25 Mhz. Even if my tuning was wrong I'd expect to see snow
>> from the Tuner input but I get a black screen.
> So you connected the cable box through the coax connection?
>
>
Yes - coax RF connection. :-) Ken

Is there a way to increase the logging of Myth's interaction with the 
capture cards so that I can get a clue as to what's happening? Initially 
I used Myth to tune the card to 735.25 Mhz by selecting what I believe 
I've configured as Ch 801 in live TV mode. In live TV mode I got a black 
screen. But when I grabbed the output of the card with ffplay I got 
snow. If Myth had tuned the card I would have expected it to have been 
left tuned on 735.25 MHz but only when I used v4l2-ctl to do the tuning 
did the cable box's video appear through ffplay. I suspect that either 
Myth is not commanding the card or Myth is making the wrong settings on 
the card. When I look in Live TV mode I get a black screen and the error 
noted above. If Myth was reading /dev/video4 I'd at least expect to see 
a snow picture even if the tuning was wrong.

Any thoughts??

Thanks

Ken

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