[mythtv-users] KWorld ATSC-115 problems -- can't change channel, no sound

John Drescher drescherjm at gmail.com
Wed Dec 31 16:40:22 UTC 2008

On Wed, Dec 31, 2008 at 11:35 AM, David Lonie <loniedavid at gmail.com> wrote:
> I recently started setting up a KWorld PlusTV ATSC-115 to work
> alongside my PVR-150 in a mythtv box.
> For the first few attempts at using it I got black screens in xawtv
> and myth. I followed the mythtv wiki, asked around on IRC and got
> nothing.
> Eventually (I have no idea what changed...) I got a picture! No sound,
> but I could see all the channel's from my analog cable signal in both
> myth and xawtv. I rebooted to see if this would work by default, and
> when I did I got static. I switched the cable from the top to the
> bottom connector and the picture came back (!). I have no clue why the
> card spontaneously changed inputs like that...
> Problem is, there's still no sound and I can't change channels. I'm
> stuck listening to some big-haired bimbo go on and on about who the
> sexiest tv doctor is on the charter channel.
> I fooled around a bit, trying the v4l hg drivers, the 2.6.27 drivers,
> etc, but no luck. I've reconfigured the card in myth a dozen times,
> unloaded and reloaded the module, etc. Any ideas what I should try
> next? Any output that may be useful to anyone? I've run out of ideas
> myself.
> I've asked around on the v4l list, but haven't gotten any responses.
> Nothing I can do seems to get this card to work -- I've been trying
> for 4 days now, and I'm very lost as to how to troubleshoot the issue.
> To summarize,
> * Card is a KWorld ATSC-115 (using saa7134 drivers)
> * I have a picture using xawtv to capture the analog signal
> * I cannot change the channel
> * There is no sound, even with saa7134-alsa loaded, running the v4lctl commands
>  and with xawtv set to the correct dsp (/dev/dsp2 in my case).
> If anyone out there is familiar with this card or troubleshooting this
> driver, what would you do in this situation?

I have that card but I do not use the analog portion of it. I am using
the v4l drivers and with my card the digital did not work until I
supplied it with the firmware from the install cd (long story how I
got that to work).


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