[mythtv-users] Re: PVR-250: Vertical green bands in recording

Jason Miller jasonmiller at micron.com
Wed Jan 14 18:17:05 EST 2004


On 14/01/04 18:03 -0500, IvanK. wrote:
> On Wednesday 14 January 2004 05:47 pm, Andy Grundman wrote:
> > Douglas Beck wrote:
> > > Hey, Andy.  I have this problem when my card switches to 720x480
> > > spontaneously from 640x480.  I just make sure I'm not watching live tv
> > > or recording anything and issue this command:
> > >
> > > # /usr/lib/ivtv/test_ioctl -f width=640,height=480
> > >
> > > If you're running PAL you're going to have a different vertical res.
> > >
> > > Doug
> >
> > Interesting.  I switched to 640x480 and the problem persisted.  It was
> > still there when I switched back to 720x480 too. :(  I am going to try
> > disconnecting the cable and rebooting.  I had the cable guy over
> > yesterday to install a new PVR box and he had to disconnect the cable
> > outside for a few seconds.  I think the problem might have started after
> > that... maybe it confused the card somewhat.  I have loaded and unloaded
> > the module several times since then though, so it's a longshot.
> 
> 
> Unlikely, that is disconnecting the cable outside the house caused the green 
> vertical lines.  I believe it's a known bug in ivtv, cause many people have 
> experienced it.  What is surprising is that different people report 
> differently colored bars -- mine are redish to pinkish (though I can't 
> remember when was the last time I had them).  I remember someone else 
> reporting whitish patterns.  Might be that whatever color the picture is, 
> that color will be the vertical lines as well.  Just a conjecture on my part, 
> though.
> 
> I'd suggest you get and compile the newest, released only last night, 
> ivtv-0.1.9 and try that.
> 
> IvanK.

I'm not sure this is the same issue but there is one banding problem that is
solved by chaning inputs.  Ie: 

  'test_ioctl -p <incorrect tuner>; sleep 5; test_ioctl -p <your correct tuner>'

I believe there are still a lot of us with that in our crontab :)



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