[mythtv-users] Re: gray bars and ghosting on certain channels

[Scot L. Harris]

On Wed, 2005-10-12 at 12:42, Neil Cronin wrote:
> Thanks.  As I mentioned, when I plug the coax directly into the
> television, the signal is fine.  No gray bars or ghosting.  I'm not
> ruling out a bad connection (either on my 350 or internal to it), or
> just a bad cable that somehow makes a better connection to my tv.
> 
> The fact that it happens only on certain channels makes me think that
> this problem is related to my 350 card or mobo, or is at least somehow
> related to the frequency of these channels, either electrically or via
> some software settings.
> 
> Thanks,
> -neil

Have you looked at the cards settings using:

/usr/bin/ivtvctl -a

On a second PVR-350 I installed recently I found that the dnr_temporal
was set to something other than 0.  This caused significant ghosting. 
Once I set it to 0 using:

/usr/bin/ivtvctl -c dnr_temporal=0

The ghosting went away.  Interestingly my master backend system with a
PVR-350 did not have this problem and those settings defaulted to 0 on
that system.