[ivtv-users] CX18: Black and white horizontal line with HVR-1600

[k niemand]

I realized that my message got posted under the wrong thread... 

I use NTSC and it always has been a problem (even when I use the tuner input). I use a cable box from my TV provider. 

Any idea of when you have time to look at this issue? It sounds like you are very busy. Anything I can try?

Thanks,
Joe



--- On Thu, 2/12/09, Andy Walls <awalls at radix.net> wrote:

> From: Andy Walls <awalls at radix.net>
> Subject: Re: [ivtv-users] CX18: Black and white horizontal line with HVR-1600
> To: jknoedel at yahoo.com, "User discussion about IVTV" <ivtv-users at ivtvdriver.org>
> Date: Thursday, February 12, 2009, 10:45 PM
> On Thu, 2009-02-12 at 17:11 -0800, k niemand wrote:
> > I have a HVR-1600 card and installed the latest
> driver. I use the
> > latest Ubuntu distribution. Composite input works fine
> apart from an
> > annoying black and white horizontal line at the top of
> the picture. I
> > tried the --set-crop option using v4l2-ctl (v4l2-ctl
> > --set-crop=top=1), but the responds I get is
> "VIDIOC_G_CROP: failed:
> > Invalid argument". 
> 
> The driver doesn't really support the crop ioctl.  It
> provides a stub
> that goes through some trivial motions, but then always
> returns -EINVAL.
> 
> 
> > Does anyone have any ideas of how to get rid of this
> line? 
> 
> Well, I have to fix the driver to get rid of it.
> 
> That line is part of the Vertical Blanking Interval; the
> white areas are
> data that's being sent (like CC over NTSC or VPS or
> Teletext for other
> video standards).  The wrong values for vblank and vactive
> may be being
> used in the cx18-av-core.c file. 
> 
> Are you using PAL, SECAM, or NTSC?  Is this a new problem,
> or one that
> you have always had?  What is the composite video source: a
> VCR, a cable
> convertor, or something else?
> 
> Regards,
> Andy
> 
> 
> > Thanks,
> > Joe