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

[Mark Hutchinson]

I am running SATA drives, TOP show mythfrontend at 23% load, and no I/ 
O wait.
I still have jerky video and sound, but only on SD live TV and not HD.

Ideas on why?

This is the last thing to get this full working.


On 7-Feb-08, at 7:30 AM, Phil Bridges wrote:

> On Feb 7, 2008 8:58 AM, Steve Curtis <scurtis at fixation.net> 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!
>>
>
> Is DMA enabled on your hard drives / optical drives?  Maybe the
> bottleneck is there.
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