On Sun, 7 Feb 2010, Dercino Fernandes dos Santos wrote: > Hi, > > how to run a DVD on two screens simultaneously Hardware will work. We used a VGA splitter to run a CRT and projector in parallel. There's probably similar hardware for HDMI, and surely for composite video, component etc. It may even be possible to daisy-chain component video on BNCs to multiple displays providing that the termination resistor is removed except from the end of the chain. For a system with a dual-head card such as Nvidia quadro etc, I'm not sure. I think some of them have a dual mode. We've always wanted independant displays, or merged/xinerama mode, but I think I remember seeing console text scrolling on two screens at startup once. In passing I note that some older dual-head cards don't have full graphics acceleration on both heads, which can lead to some weird effects. I've seen a movie window straddling two displays in merged mode, with the right half black and the left half playing normally. Other crazy ideas - run the DVD from a streaming server and run multiple copies of mplayer, one on each monitor. Andrew