[mythtv-users] tearing artifact in tv/recordings

[Isaac Richards]

On Sunday 20 April 2003 02:48 pm, Allen T. Gilliland IV wrote:
> Has anyone encountered a strange tearing artifact in
> their tv playback and recordings?  I have put up a
> screenshot to show exactly what I mean.
>
> http://www.agilliland.com/images/screenshots/tvrecordprob.jpg
>
> these little tears in the image seem to only happen on
> indindividual frames and usually not in the same place
> on the image.  I am pretty sure it doesn't have to do
> with my mythtv config and hardware config because I
> only started seeing this problem in the past week or
> so.
>
> The problem also shows up when I watch directly from
> xawtv ... meaning that the problem might be with the
> signal, but I am not sure.

PCI bus latency problems, most likely.  The tuner card isn't getting enough 
time on the bus to transfer a complete frame.  Dropping resolution might 
help, and you can try increasing the latency timer or whatever it's called 
either in the bios or through the latency option to the bttv module.

Isaac