nVidia MX 4000 Tv out / Svideo black and white
all credit must go to: trentonknight
Source:
https://www.linuxquestions.org/questions/linux-hardware-18/black-and-white-tvout-nvidia-fx5200-292588/
Add the following options below to xorg.conf.
Make sure you make a backup of xorg.conf first of all!!
Option "TVStandard" "PAL-I"
Option "TVOutFormat" "SVIDEO"
So your xorg.conf should look something like this:
Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "Videocard vendor"
BoardName "NVIDIA GeForce FX (generic)"
Option "TwinView"
Option "SecondMonitorHorizSync" "30-50"
Option "SecondMonitorVertRefresh" "60"
Option "MetaModes" "1024x768, 1024x768; 800x600, 800x600; 640x480, 640x480;"
Option "TVStandard" "PAL-I"
Option "TVOutFormat" "SVIDEO"
EndSection
UPDATE: I have found the colours appear more accurately when using:
Option "TVOutFormat" "COMPOSITE"