[mythtv-users] Correctly behaving 576i (or 480i) from vdpau-capable chip?

Jean-Yves Avenard jyavenard at gmail.com
Wed May 26 08:52:20 UTC 2010


Sent from my iPad

On 25/05/2010, at 6:44 PM, Christopher Kerr <mythtv at theseekerr.com> wrote:

> The only thing a 600hz display can do that a 100hz display can't is
> properly display NTSC (30fps) PAL (25fps) and cinema (24fps) content
> without mucking about with quality degrading techniques like telecine
> or nasty hacks like PAL speedup. For that reason, and that alone,
> "600hz" displays will probably become a worldwide standard within a
> few years.

That would only be true if the screen was really refreshed at that
frequency, which it isn't.
And when connected to a PC or an external device, it only accepts a
24, 50 or 60Hz signal.

The 600Hz has little to do with the refresh rate, and all to do with
motion compensation. Pure marketing gimmick term.

So in the end, they make absolutely no difference whatsoever to the
quality of display of connected say to a myth front end.

Btw, 25 fps would have no issue on a 100Hz screen.

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