[mythtv-users] Line of garbage at top of screen

[Michael Freeman]

what's funny is that i can see the same thing on ads on cnbc on both QAM
digital and analog....and on regular analog TVs too (nothing special on
them).


On 2/2/06, Brandon Stoll <mrmagoo at mrmagoo.org> wrote:
>
> On 1/31/06, Jarod Wilson <jarod at wilsonet.com> wrote:
> > On Tuesday 31 January 2006 10:47, Endaf Jones wrote:
> > [...]
> > > > > that's just VBI data. It's in every broadcast. You don't see it on
> your
> > > > > regular TV with it's tuner because the mfr sets the overscan so
> high
> > > > > that it's not seen. You can too. It's easy to do with the overscan
> > > > > setting in mythtv frontend>>Utilities/Setup>>Setup>>TV
> > > > > Settings>>Playback>>Overscan
> > > > >
> > > > > Set the Vertical over/underscan setting to something small like 2
> or 4
> > > > > and check your video playback. I play both NTSC and ATSC 6:9 and
> it
> > > > > works fine.
> > > >
> > > > Or just use the custom filter "crop". I forget the exact parameters,
> but
> > > > you basically specify how many pixels to chop off the top, bottom
> and
> > > > sides. Details can be found in the list archives, I'm sure.
> > >
> > > If I'm not mistaken, the "crop" filter is in multiples of 16 pixels.
> > > You can't just specify 6 pixels, you can only specify 0,16,32 ...
> >
> > Appears that you are correct about the multiples of 16 pixels (16 pixels
> == 1
> > macroblock), but should be specified in macroblocks, not pixels, so your
> > 0,16,32... example should actually be 0,1,2... At least, if I'm reading
> > things right. I've never actually tried it out. :)
> >
> > > For a lot of people, that's just too much of the picture to remove.
> > > Overscan is your best option I think in this case.  Unless something
> > > has changed recently.
> >
> > If you're recording at full-resolution, chopping 16 pixels off the top
> doesn't
> > seem so bad to me (you normally lose that many when watching SDTV
> anyhow),
> > but I'd have to actually try it to see what I really think.
> >
> > --
> > Jarod Wilson
> > jarod at wilsonet.com
> >
> >
>
> Thanks for info.  I thought my cable company was just insane.  I can't
> believe I never thought of crop/overscan settings to fix the picture,
> I feel really stupid now :D.
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mythtv.org/pipermail/mythtv-users/attachments/20060202/f4fc510e/attachment.htm