[mythtv-users] Much improved 1080i display

Tom Dexter digitalaudiorock at gmail.com
Thu Apr 2 15:16:07 UTC 2009

On Thu, Apr 2, 2009 at 10:15 AM, Paul Gardiner <lists at glidos.net> wrote:
> Jean-Yves Avenard wrote:
>> Hi
>> 2009/4/2 Paul Gardiner <lists at glidos.net>:
>>> Below is a post from the thread "New deinterlacer for perfect image
>>> quality when using an interlaced display, mode that matches the
>>> source" I just thought I'd repost it under a different title because
>>> the original title gave the impression that use of the deinterlacer
>>> was only for interlaced displays. This should give improved
>>> quality on any TV with good 1080i support.
>> I haven't had much luck with it.
>> Video card is a nVidia 9400M (integrated IGP)
>> TV is a Sony LCD native 1920x1080.
>> Set the output to be 1080i @ 50Hz
>> Created a video profile to use the Interlaced 2X de-interlacer
>> Started watching a 576i video
>> And I can't see the Sony doing any deinterlacing whatsoever ... It's
>> like none were applied
> I think that's as I would expect. I don't have an HD TV or any HD
> sources to test with, but I believe Tom has his system set up to
> use several display modes, matching them to the source. So you'd
> need to make it use the 1080i mode only for 1080i content, and
> you'd need a 576i mode more 576i content. That's assuming you
> can send 576i via the input of the TV that you've chosen to use.
> My guess would be that HDMI and DVI inputs can accept 576i, but
> I've never tried it.
> Cheers,
>        Paul.

Actually no...I output 1080i at 60 from X regardless of the content.
That said, I'm not sure I record any interlaced stations that aren't
1080i.  Almost everything I get these days seems to be either 1080i or
720p (in which case no de-interlacing takes place).

I'll have to check out what happens with some of the few SD stations I
get.  Even the local PBS stations I get seem to have gone to 1080i


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