[mythtv-users] 0.24 PVR-350

[Ken Smith]

Karl Newman wrote:
> On Tue, Jan 12, 2016 at 12:10 AM, Ken Smith <kens at kensnet.org 
> <mailto:kens at kensnet.org>> wrote:
>
>     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
>
>
> It looks like that frequency corresponds with PAL-I channel 54. I'm 
> not sure how you're entering the channel frequency, but have you tried 
> setting up the tuner with a PAL frequency table and presetting the 
> channel to 54 (in mythtv-setup)?
>
> Karl
>
> Yes - Ch 54. I deleted the new capture device and set it up again with 
> your suggestion of ch54 as its initial channel and I have it working 
> now. Many thanks

Ken

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