[mythtv-users] HDMI & the elimination of customised modelines for 480i, 480p, 720p, 1080i and 1080p

James Buckley xanium4332 at googlemail.com
Mon Jun 4 16:50:38 UTC 2007

On 29/05/07, James Buckley <xanium4332 at googlemail.com> wrote:
> Hi all,
> Recently I read the 'Configuring HDTV' wiki article at
> http://www.mythtv.org/wiki/index.php/Configuring_HDTV#NVIDIA . It
> mentions the fact that the information on the 'ComponentOut' article
> is now no longer relevant to just component, but HDMI also.
> Heres the excerpt:
> Additionally, it is worth noting that nVidia has made some changes to
> their driver to eliminate the need for customized ModeLines for the
> popular formats (480i, 480p, 720p, 1080i, 1080p). Check out the
> ComponentOut (http://www.mythtv.org/wiki/index.php/ComponentOut) wiki
> entry for more information. The settings listed on that page are no
> longer specific to Component Output, as they can be applied to HDMI
> interfaces as well (for those using DVI to HDMI connections). Be sure
> to check your display (television set) manual to see what it supports
> and how.
> [/QUOTE]
> However I can't find any other references to back this up, and the
> component wiki entry hasn't been edited to point this out. Looking at
> the page's history, the info was added on 12 April 2007, by a guy
> named Wesnoc, however he doesn't have a wiki page, so I can't contact
> him.
> I was wondering whether anyone had any further info on this: whether
> it's true, a site reference, or just what settings from the
> ComponentOut wiki ARE relevant (i.e. how to set up HDMI without a
> custom modeline).
> I've tried searching google, but most results are related either to
> component, or using a custom modeline. I'm probably just being stupid,
> but can anyone supply any info.
> Thanks, James

I'll take the lack of response to this question that the info is probably

Alternatively, I'm wondering whether HDMI capable STBs and DVD players also
calculate the (equivalent) modeline based on the TV's EDID info, or just use
some inbuilt timing information for the common formats (720p, 1080i, 1080p).
Anyone know anything about this, or have some standard HD modelines that
should work on most HDMI inputs.

It seems TV manufacturers made a mess of DVI (with all the incorrect EDID
infos), wonder whether it's the same with HDMI.

I'm looking for info before my HDMI capable graphics card arrives (which may
not be any time soon, as I've already been sent 2 which were the wrong
version (non HDMI out, only DVI, which meant no audio), and am having to
import one from the US (to the UK)...).

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