Alex Ramos Posted January 19, 2014 Report Share Posted January 19, 2014 Hey all, Im using watchout to drive LCDs video walls and LED screens. When working with LCD video walls some times I need to used multiple outputs from the same machine or from multiple machines. To keep every thing in sync Im using S400 cards, but.....not always this is working good. Some times I can't make the ATI cards outputs to sync. Even with the S400 card installed and powered I don't get the option to select the outputs to follow the master. Lets say we have a 9 wide x 5 tall video wall config. OOOOOOOOO OOOOOOOOO OOOOOOOOO OOOOOOOOO OOOOOOOOO Now each area (number) is connected to a different DVI output and the screens are DVI looped. 112222233 445555566 445555566 445555566 445555566 Being all the monitors the same brand and model, even from the same batch. Should be possible to sync the outputs. But no, its not. After some testing in the workshop Ive found that: Its not posible to sync outputs with different screen EDID. and For some reason the ATI card can see that some outputs have more screen than others, and considers this to be like different screens model. Even if in windows setting for resolution the multiple outputs show the same EDID, "sharp monitor". The only way Ive managed to sync everything was using DVI Parrots loaded with the monitors EDID to fake that only one monitor is connected to the output. Hope this can help anyone in future projects. Alex Quote Link to comment Share on other sites More sharing options...
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