[mythtv-users] LCD and traditional CRT TVs, overscan and UI size and widget placement
Tortise
tortise at paradise.net.nz
Wed Nov 11 18:31:26 UTC 2009
> The problem with this approach is that it's futile trying to make the
> edge of the UI "canvas" meet the visible portion of the picture as the
> borders of this visible portion of the picture are never straight an
> square. Frequently they are curved and/or have wows in them.
>
> See this picture I took of my TV:
> http://svn.mythtv.org/trac/attachment/ticket/7545/P1010451.JPG
>
> You can see a "wow" on the top half of the left border. But this is
> just how CRT TVs are. This is exactly why overscan exists.
It seemed to me this wow effect is really the "edge artefact" that overscan was made to hide.
I have a 32" "semi HD" CRT TV which has the "wow" shown but on the right hand side, I was going to get the dealer to come and adjust
the set as I had assumed that was a minor malignment of the tube that they might be able to correct. 2 others similar TV's / setups
I have do not have that bendy "feature".
Interestingly the inner bow moves depending on content movement and it is a little disconcerting however I can seem to come to
ignore it. Test videos can well demonstrate the edge movement bending and straightening. See http://www.w6rz.net/
Does anyone know if a degree of tube malignment can accentuate this and will it be possible to have the dealer adjust and improve
this?
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