In xorg-server 1.6.5 this config worked fine, in xorg-server >1.7 is not. X is started in 768x576 but not interlaced. xrandr show two modes 768x576 and 640x480. When I try to set this modeline ("768x576@25i" 14.75 768 780 858 944 576 581 586 625 interlace -hsync -vsync) through xrandr something goes wrong because the VerticalSync is about 48Hz and not 50Hz, and it does not work on homemade VGA-RGB Scart cable (http://www.mythtv.org/wiki/RGB_Scart).
Created attachment 32131 [details] xorg.conf
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