[mythtv-users] CPU not enough to drive 1080P? Core2duo

[Mark Hutchinson]

I am finding exactly the same thing.
Capture via firewire.  HD channels are great.
SD channels are a bit jitterty and so is the SPDIF audio.

Could this be the 8600 Nvidia card?  What would a better XvMC card  
be?  8800?  or is the 8XXX series that is not working with XvMC?

Now the question.  WHY in the world would SD be jittery and HD ( much  
greater throughput ) is clear and perfect.

Ideas?  There is really not much in the logs.


On 7-Feb-08, at 6:58 AM, Steve Curtis wrote:

> On 06/02/2008, Mark Hutchinson <mark at onnow.net> wrote:
>
> On 5-Feb-08, at 7:18 PM, Michael Rice wrote:
>
> > Load           "extmod"
>
> This fixed my HD.
> Now my SD is still jerky.
>
>
> Just FYI - I also built my myth machine with an 8600 and planned on  
> using XvMC.  I'm afraid it will never work - the latest Nvidia  
> drivers don't support XvMC with 8xxx cards.  If you google around  
> you will find confirmation on the Nvidia site somewhere.
>
> I "downgraded" my machine to a 7600 and now XvMC does work.  I think  
> I read somewhere that Nvidia have no plans at present to support  
> XvMC in the 8xxx series for the foreseeable future.
>
> My CPU is an AMD 6400 - I'm connected to a 1080p display, I don't  
> have HD tv tuners so can't comment on MythTV but my mplayer still  
> can't process 1080p.  I'm really confused why as my CPU is not  
> topping out when looking at "top" - and I've used all manner of  
> mplayer configurations yet I still get stutter.  Something is bottle  
> necking my system - and I just can't figure what/or where it is!
>
> Highly frustrating as the picture looks gorgeous - but the slight  
> stutter ruins the overall experience!
>
> Any thoughts on that much appreciated!
>
>
>
> --
> Steve Curtis [scurtis at fixation.net]
> Fixation Networks Ltd _______________________________________________
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