[mythtv-users] Dedicated hardware recommendations

[Isaac Richards]

On Friday 28 November 2003 04:00 pm, Bruce Markey wrote:
> Steve Hill wrote:
> ...
>
> > Does Myth sync properly with all graphics cards or is it just the Nvidia
> > 
 cards (a look at the source shows it looking at /dev/nvidia0 so it
> > seems to have Nvidia-specific code in there, but I'm not sure if it has
> > code for other cards too?)
>
> 
> The nVidia driver 4363 has a feature that allows MythTV to
> try to update the framebuffer during VBI. This feature is
> broken in the current nVidia 44xx driver. No other cards
> support this feature. AFAIK, there is no similar feature
> for the PVR-350. For cards other than the nVidia with A/V
> Sync turned on, myth will try to update the frames at equal
> intervals but has no idea when the VBI happens.
> 
> The advantage of the PVR-350 is that there is a one-to-one
> alignment of the scanlines. However, I've experimented with
> setting the nVidia TVOverScan to 1.0, 640x480 (Nx576 for PAL)
> deinterlace off, no myth GUI height adjustment and no myth
> overscan height adjustment. This appears to align scanlines
> as well fixing most interlace problems and the images look
> more vivid.

The 350 handles all decoding/displaying of mpeg2 data.  Syncing things in 
mythtv isn't needed.

Isaac