Emil Krüper wrote:
> hi,
>         
>         I don't know any place else where I could ask for help, so here
>         is my
>         problem.
>         
>         I would like to run a TFT screen with 2.5" at my VGA out,
>         inbetween that
>         is a vga to RGB converter.
>         
>         http://www.tkk.fi/Misc/Electronics/circuits/vga2tv/vga2palntsc.html
>         
>         The VGA out has to send an interlaced signal to the converter!
>         
>         A college tested it in windows it's working fine with following
>         settings
>         in powerstrip:
>         
>         Resolution - 768 x 576
>         Horizontal refresh rate - 16
>         Verticalal refresh rate - 25
>         Horizontal front porch - 16
>         Vertical front porch - 5
>         Horizontal sync with - 65
>         Verticalal sync with - 5
>         Horizontal back porch - 96
>         Vertical back porch - 40
>         Pixel Clock - 14.774
>         Interlace active
>         
>         
>         I can't get it running in linux, I don't know the line for grub
>         and I
>         haven't found any information if it is possible at all to run
>         the FB
>         interlaced with my VGA card and these specs.
>         
>         I am running debian with the following:
>         
>         lspci tells me
>         
>         0000:00:02.0 VGA compatible controller: Intel Corporation
>         82852/855GM
>         Integrated Graphics Device (rev 02)
>         
>         uname -a  -  2.6.14.5    (compiled from a vanilla kernel)
>         
>         and DirectFB  -  0.9.22
>         

With this chipset, you have to use intelfb.  Unfortunately, intelfb
does not support interlaced/double-scan modes.  You can probably check
X to find out if it has code for interlaced modes and adapt it for
intelfb.

Tony

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