semi-green computing

Matt Price matt.price-H217xnMUJC0sA/PxXw9srA at public.gmane.org
Sat Feb 21 02:04:42 UTC 2009


On Thu, 2009-02-19 at 10:52 -0500, Lennart Sorensen wrote:
> On Tue, Feb 17, 2009 at 06:08:42PM -0500, Colin McGregor wrote:
> > A topic that has been drawing a LOT of attention on the MythTV-users
> > mailing list is the topic of VDPAU (Video Decode and Presentation API
> > for Unix) a feature found in some NVidia GeForce 8 series and later
> > video cards. A VDPAU supporting card will let you off load a lot of
> > the video decoding work normally done by the CPU to the video card.
> > Cards that support this can be found for under $60 (Canadian). These
> > cards will let you use a fairly modest (read low power consumption)
> > CPU chip. How modest you could go is a subject of debate, but let's
> > just say that you will not need the latest fire breathing AMD/Intel
> > CPU to support video tasks.
> > 
> > The gotchas include, only the testing version 0.22 of MythTV supports
> > VDPAU (the current stable version of MythTV 0.21 doesn't support
> > VDPAU). You have to tread cafefully regarding VDPAU support, there
> > seems to be no rhyme or reason as to what cards in the GeForce 8
> > series support what...
> 
> There is very obvious reason for which geforce 8 series have it.  If the
> card uses a G80 GPU, it does not have it.  If it uses a newer one (G84,
> G86 or G92) then it has it.
> 
> The G80 is used in the 8800GTX, 8800 Ultra, and the 8800 GTS 320 and
> 640MB versions.  The 8800GS, GT and GTS512MB are all G92, and all other
> 8xxx cards are G84 or G86 and hence all have the required PureVideo2 HD.
> 
ha!  my asus en8400gs happens to work fairly well, according to:
http://www.mythtv.org/wiki/VDPAU#Supported_Cards
this is a big help, thanks much colin, and sorry to be so long
responding.

matt



> I will have to try this out on my 8600GT with mythtv.
> 
-- 
Matt Price
matt.price-H217xnMUJC0sA/PxXw9srA at public.gmane.org
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