[mythtv-users] TV Output

Simon Williams ultim8fury at gmail.com
Wed Dec 22 14:13:11 UTC 2004

On Wed, 22 Dec 2004 10:39:04 +0000, Stephen Williams
<stephen.gw at gmail.com> wrote:
> Glad to hear you're making progress. The image really should be
> centred, the signal is as close to spec as possible. Are you sure that
> you haven't set Myth to recentre the image? You might have done that
> for you're previous S-video out and haven't reverted it...
> Assuming that's not the case you have two options (1) use Myth config
> options to offset the display X and Y to centre the picture or (2)
> mess with the modeline slightly to alter the front/back porch lengths
> for both horizontal and vertical, just make sure you keep the sync
> widths the same.
> Option 1 would fix Myth put would still mean that other programs, e.g.
> Mplayer/Xine/Ogle are off-centre. Option 2 requires a bit of
> experimentation put would result in all programs being centred.

Easiest thing to do by far is use xvidtune to get the centering right.
once you've got it set up hit "show"
and it''ll tell you the modeline you need. That way all your X
programs will be spot on.

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