[mythtv-users] Installlation problems (ivtv, only getting static, or black)

[Jarod C. Wilson]

On Nov 9, 2003, at 13:57, Dan wrote:

> and the cat /dev/vidgeo0 > /tmp/test.mpg
>
> What should I actaully see here??? (going through all the possible p 
> values (in my case 0-9)
> I get a black mpg, except for p 4, which gives me black and white 
> static.  (no audio on all numbers)

It would appear -p 4 is correct for you, but you aren't tuning in a 
valid station in your area. It seems whatever channel the card is 
defaulting to (channel 3, IIRC...) doesn't carry a signal where you 
are. I can't recall if you should be hearing static also or not, so you 
may or may not have an audio issue also, but first things first.

> I guess where Im confused, is the test_ioctl I see selects a 'tuner' 
> but how does it know what channel to tune?
>
> Any suggestions/tips greatly appreciated :)

Look in /usr/lib/ivtv for ptune.pl, which you can use to set the 
channel. Set the channel to something you know should be valid, and try 
the capture again. Hopefully, that's all you need...

-- 
Jarod C. Wilson, RHCE

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