[ivtv-users] green video from cat /dev/video?

[James Pifer]

On Sat, 2010-03-13 at 14:19 +0100, Lars Hanisch wrote:
> Hi,
> 
> Am 13.03.2010 13:48, schrieb James Pifer:
> > I was having problems with some of my mythtv recordings having bad
> > video. The leading contender for the issue is too much stuff going on
> > for one hard drive. So I added a new smaller drive for the OS and also
> > updated to the OS to CentOS 5.4. I then installed mythtv and ivtv using
> > yum.
> >
> > I have a PVR150/250/350.
> >
> > If I try to capture video by cat /dev/video0 (or 1 or 2) all I get is a
> > green picture. I've gone through the troubleshooting and did not come up
> > with a fix.
> >
> > modprobe.conf has nothing in it, but ivtv is loaded if I do an lsmod.
> >
> > Anyone have any suggestions?
> 
>   Have you tuned to a channel or set to an external input before the cat? I think you can use ivtv-tune or v4l2-ctl for 
> that.
> 

Well I attempted to:

# ivtv-tune -d /dev/video0 -c 2
/dev/video0: 55.250 MHz  (Signal Detected)
# cat /dev/video0 > test.mpg

Thanks,
James