No subject

--transform a,b,c,d,e,f,g,h,i
              Specifies  a transformation matrix to apply on the output. Auto-
              matically a bilinear filter is selected.  The mathematical  form
              corresponds to:
                     a b c
                     d e f
                     g h i
              The transformation matrix multiplied by a coordinate vector of a
              pixel of the output (extended to 3 values) gives the approximate
              coordinate vector of a pixel in the graphic buffer. Typically, a
              and e corresponds to the scaling on the X and Y axes,  c  and  f
              corresponds  to  the  tranlastion on those axes, and g, h, and i
              are respectively 0, 0 and 1. It also allows to express  a  rota-
              tion of an angle T with:
                     cos T  -sin T   0
                     sin T   cos T   0
                      0       0      1
              As a special argument, instead of passing a matrix, one can pass
              the string none, in which case the default values  are  used  (a
                     Xinerama and RANDR geometry requests.

On Thu, Jul 16, 2009 at 4:31 PM, <dragondaddy at hushmail.com> wrote:
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> Hello xorg-devel list
>  I would like to request a feature addition.  When someone wishes
> to use X on a home theater they have a very real problem with over
> scan of the TV.  The TV will clip many pixels all the way around
> the image.  This means that scroll bars are not visible on the TV
> screen and menu bars are cut in half, if visible at all.
>
>  It would be great if there was a setting to have a black, or a
> designated color, border around the image from X.  This would foul
> the TV and allow the user to see all of the screen.  Unfortunately
> different brands of TV's have different ways of dealing with over
> scan so the size of the border needs to be set by the user and not
> preset to some specific value.
>
>  The Microsoft windowing system has ways to deal with this problem
> so they are the dominate system for home theaters.  But I
> personally don't want to reduce the level of my operating system
> for this feature.  I would be very appreciative of this as I'm sure
> millions of other people would be.  Also I suspect it wouldn't be
> that difficult.  I haven't delved into the code for X but it seems
> to me to just be a linear transformation from r2 to r2, not that
> big of a deal.  Or one could just add lines of black pixels on all
> sides and the TV wouldn't know the difference, brute force
> sometimes is the best way.
>
>  I truly hope you consider adding this feature.  It would help me
> out and many others as well.  It would also open a market for X
> that currently is being ignored.  With the advent of high speed
> internet sites such as www.hulu.com and www.joost.com television
> and movies are coming into the home on demand.  I currently use X
> to view these sights but to navigate them I use x11-vnc and my
> laptop to see all of the screen.  Please help me out and millions
> of others and implement this feature.
>
> Thank you
> Joseph Murphy
>
> PS
>  If this is already possible and I am just ignorant of how to
> accomplish it please educate me.
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