Originally posted by: sathyan
yes. my ati radeon 7500 ($100 B&M retail) will do this when its in theatre mode (a control panel option). On CRT/LCD you play the video windowed (it can even be pushed to background) or full-screen and the full screen video plays on the s-video output. this works with ATI DVD player, ATI file player, Dscaler, Windows Media Player and RealPlayer (& perhaps others).
i believe you can setup the matrox cards to accomplish this