[mythtv] Ticket #2903 is necessary to achieve perfect playback with an interleaved display mode.

[Thomas Hilber]

On Tue, Mar 31, 2009 at 04:36:41PM +0100, Paul Gardiner wrote:
> >it works only for PAL/RGB compatible modelines on a conventional
> >Xserver. It does not work for TV out. At least I never tried because
> >of it's inferior signal quality.
> 
> What about HDMI? Does that count as TV out, or a VGA variant... I
> suppose in any case DVI to HDMI can be used in the same way as
> VGA to Scart.

for me HDMI counts clearly as 'VGA variant' here because only
conventional Xserver modelines are involved. 

There is no such terrible things like TV encoders (as needed for TV-out)
etc. in effect.

The vga-sync-fields patch is capable to run 576i50 over DVI (==HDMI) on my 
Pundit P1-P5945GC. The patch only needs a small modification for this
because timing registers are setup slightly different for DVI.

I think it's no problem to port the patch in a way to synchronize
HDTV related video timings to the stream. Without this essential 
synchronisation you will experience the same frame/field drops known from 
SDTV on HDTV also.

As a by-product of this you can use the deinterlacer of your TV.

Cheers
  Thomas