[mythtv-users] HDPVR/GT430 Skipping Video

[Scott Smith]

So I ive been trying some more things out and it seems more like a A/V issue 
rathering than buffering.

The main reason would be if any osd is displayed it can trigger this skipping, i 
would expect the video buffer is well established. 

Once it starts skipping I let it go and it just doesnt settle, switch the 
deinterlacers and it sync's up right away.




________________________________
From: Nick Rout <nick.rout at gmail.com>
To: Discussion about MythTV <mythtv-users at mythtv.org>
Sent: Sun, June 3, 2012 1:55:08 AM
Subject: Re: [mythtv-users] HDPVR/GT430 Skipping Video

On Sat, Jun 2, 2012 at 6:27 AM, Gary Buhrmaster
<gary.buhrmaster at gmail.com> wrote:
> On Fri, Jun 1, 2012 at 5:32 PM, Scott Smith <pickle136 at sbcglobal.net> wrote:
>> I have a GT430 using VDPAU for decoding.
>
> Given your sbcglobal email address, it is likely you are
> located in the US.  A "standard" GT430 has always
> been right on the edge regarding its ability to perform
> 2X de-interlacing in the US.  It is not recommended in the
> US as a 60Hz country (for 50Hz countries, it does fine).
> Turning off composite in your X config *may* help
> mitigate the worst effects.  So may running the card
> overclocked (if possible with your card and your drivers).
> Some people will not notice (or care about) the small
> glitches which a GT430 will manifest in the US with
> 2x de-interlacing, but others find it completely
> unacceptable.  You seem to be an extreme case,
> and perhaps your GT430 was shipped underclocked
> (to keep to cooler, or to allow it to use a passive
> heatsink, etc.).


OTOH the OP says it only occurs at the start of LiveTV or recordings.

When playing ts containers sometimes take a few moments to "sync" to a
keyframe. They are designed to be started anywhere in the stream, but
I certainly find they can be a bit gltchy when diving in. Could it be
this that you are seeing?
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