[mythtv-users] HD Playback using ATI 9550

Steve Adeff adeffs at gmail.com
Fri Nov 25 21:52:27 EST 2005


On Wednesday 23 November 2005 18:31, N Dugas wrote:
> Steve Adeff wrote:
> > On Tuesday 22 November 2005 12:13, Tom Dombrosky wrote:
> >>On 11/22/05, N Dugas <normdugas at yahoo.ca> wrote:
> >>>Steve Adeff wrote:
> >>>>On Monday 21 November 2005 16:28, N Dugas wrote:
> >>>>>I've got a myth box that I'd like to do HD playback. It's connected to
> >>>>>a DCT6412. I'd like to re-use a spare ATI 9550 with 256M for this. Is
> >>>>>this possible? Every thing I found suggests I use Nvidia due to
> >>>>>superior drivers.
> >>>>>
> >>>>>Thanks,
> >>>>>Norm
> >>>>
> >>>>what processor?
> >>>>
> >>>>Steve
> >>>
> >>>Currently: Athlon XP 1800 but I've got an Athlon XP 3000 that may make
> >>>it's way into that PC. I'm using the onboard video for playback
> >>>currently but HD stutters too much to make it watchable.
> >>>
> >>>This pc:
> >>>Asus A7N8X-VM/400
> >>>1G OCZ Dual DDR Ram
> >>>Athlon XP 1800 CPU
> >>>PCI IEEE1394 card
> >>>
> >>>DCT-6412 connected via 1394
> >>>
> >>>Thanks,
> >>>Norm
> >>
> >>My personal experience has been that nvidia cards work better with myth
> >>than radeons. A lot of people have had success with Radeons so I don't
> >> want to give them a bad reputation. Your onboard video will work with
> >> xvmc, which drastically lowers the cpu requirements for hd decoding. I
> >> can do it easily on an Athlon XP 2000 with xvmc enabled. You would need
> >> to use the nvidia binary drivers though. I recommend sticking with the
> >> onboard nvidia stuff.
> >>
> >>Tom
> >
> > Use the onboard GeForce, drop the XP3000 in as well ;-)
> >
> > With the 3000 you won't need XvmC, but like what Tom said it will reduce
> > CPU requirements. The faster CPU can be used for commercial detect, etc.
> >
> > Steve
> One more question came to mind.  This onboard video is GeForce 4MX.
> Will this be ok?  I'm going to try XvmC to see what the results are soon
> (hopefully tonight).
>
> Norm

Should be fine, might not get interlaced output support (don't remember if the 
GeForce4 GPU supports it) but XvMC is there.


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