[mythtv-users] PVR-350 image ghosting problem

jasonmollman at atlanticbb.net jasonmollman at atlanticbb.net
Fri Jan 6 14:06:56 UTC 2006


Kirk,

Check that dnr_temporal didn't change.

ivtvctl -C

If it is not zero, then try resetting it with:

ivtvctl -c dnr_temporal=0



On Fri, 06 Jan 2006 07:37:27 -0500
  Kirk Anderson <kirk at nosredna.net> wrote:
> I was curious if anyone else has seen anything remotely 
>like this before.
> 
> My Myth box has been running for over a year with a 
>PVR-350 card.
>For the first 8 months or so everything looked great. 
>Then a few months ago I
> noticed that all the video had severe ghosting.
> 
> What I see usually (some shows seem worse than others) 
>are 3 ghostly bars (I'd
> guess 20-30 pixels in width) evenly spaced on the video. 
>They are stationary.
> Then the moving video itself is ghosted also. Typically 
>the worst of it is seen in
> the fleshtones of peoples faces. I can basically see an 
>entire second ghostly
> image of their face offset many inches from their true 
>face.
> 
> I get it in LiveTV.
> I get it on recorded TV.
> I changed my video input from my satellite receiver to a 
>video camera and still get it.
> I moved back to earlier versions of Myth code and IVTV 
>code and still get it.
> Other this issue, everyting else works great.
> 
> I have a pcHDTV HD-3000 card which works fine (image is 
>clear as can be).
> 
> I was possibly thinking somehow a termination resistor 
>at the input may have blown
> during a lightening storm or something, but I don't know 
>how to rule that one out without
> having to buy a whole new card.
> 
> Is there anything in the software drivers that can cause 
>something like this ?
> Anybody have a lowlevel method for checking the video 
>pipeline so I can narrow down where
> the problem is coming from.
> 
> Thanks
> 
> 
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