[mythtv-users] Underscan/Overscan problem: how do I solve it?

Robin Smith 1canuck2 at gmail.com
Tue Jul 19 21:38:58 EDT 2005

I don't think its Use Window Mode. you don't want MythTV running in an
actual window. I think you just adjust the dimensions of myth from
being 0, which means full screen, to being something non zero. Start
with the left/right adjustments first though.

Then turn on the use GUI Dimensions for Playback (something like that) option.

Sorry, I'm not in front of my Mythbox right now.


On 7/19/05, Oscar Curero <oscar at naiandei.net> wrote:
> El Martes, 19 de Julio de 2005 03:42, Robin Smith escribió:
> > Almost all TVs apply overscan to the signal they recieve. In other
> > words, the TV takes the 720 x 576 signal you are sending it, and
> > probably crops 5-10% off of each side, so you are likely losing 40-ish
> > pixels to the left and right and 30-ish to the top and bottom.
> >
> > Supposedly, you can get a better modeline for your TV out that will
> > take care of the crop by giving you the correct timings and pixels,
> > "inside" of the 720x576, but I gave up and simply could not get it
> > working. Instead, I went the second best route and had my Myth GUI
> > display in a window (its in the Appearance section of settings. I then
> > messed with the offsets to get the top left corner where I wanted it,
> > then messed with the height/width to get the bottom right corner where
> > I wanted it.
> >
> > BTW, the crop you are seeing in the GUI is also happening to your TV
> > playback, so once you get the GUI right, you might want to mess with
> > having Myth playback TV using the same setting as the GUI, there's a
> > menu option somewhere in Settings to let you do this, you'll see a lot
> > more of the picture once you do this.
> >
> > Robin
> So, I need to use the "use window mode" and then use the options in the
> playblack section. Right?
> Thanks,
> --
> Oscar Curero - Linux user: 306877
> --    GPG keyID: 0xE0EA0B24    --
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