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 0 Quote Link to comment Share on other sites More sharing options...
Moderator jfk Posted January 19, 2014 Moderator Report Share Posted January 19, 2014 No surprises there, the GPUs we use are extremely sensitive to EDID anomalies, as you attest. 0 Quote Link to comment Share on other sites More sharing options...
Vollmers Posted January 19, 2014 Report Share Posted January 19, 2014 Hi, glad you found the Parrot solution, which is exactly the same solution we use. And to make things even easier, we have build our node PC's, using this graphic card: http://www.amd.com/us/products/workstation/graphics/ati-firepro-3d/w9000/Pages/w9000.aspx With that solution we have 5 outputs from one machine. You can configure it with 6 outputs, but for support reasons, we have saved one for the the OS. It also means you just need one node license. Best regards Christian 0 Quote Link to comment Share on other sites More sharing options...
Jonas Dannert Posted January 20, 2014 Report Share Posted January 20, 2014 Christian, "You can configure it with 6 outputs, but for support reasons, we have saved one for the the OS" Why?? /jonas 0 Quote Link to comment Share on other sites More sharing options...
Alex Ramos Posted January 20, 2014 Author Report Share Posted January 20, 2014 Christian, Those are the cards I use, W7000 and W9000. To maximise performance I don't use all the outputs. 0 Quote Link to comment Share on other sites More sharing options...
Vollmers Posted January 21, 2014 Report Share Posted January 21, 2014 Jonas, we do that, so if something happens while we are on air, we can acces the node, without affecting any of the onair monitors. I know you can configure it to run with six outputs. /Christian 0 Quote Link to comment Share on other sites More sharing options...
Jonas Dannert Posted January 21, 2014 Report Share Posted January 21, 2014 Interesting...that works? Never tried it, though How/with what software do you access the node? /jonas 0 Quote Link to comment Share on other sites More sharing options...
Vollmers Posted March 5, 2014 Report Share Posted March 5, 2014 We use a KVM DVI switch matrix, from Gunthermann & Drunck http://www.gdsys.de/en/products/kvm-matrix-switches/ Actually we use this with almost all our stationary equipment. It works great, and and make it possible to get access from anywhere. /Christian 0 Quote Link to comment Share on other sites More sharing options...
Bluetonesblue Posted November 9, 2015 Report Share Posted November 9, 2015 We use a KVM DVI switch matrix, from Gunthermann & Drunck http://www.gdsys.de/en/products/kvm-matrix-switches/ Actually we use this with almost all our stationary equipment. It works great, and and make it possible to get access from anywhere. /Christian Can you access the operating system while Watchout is active and running on the other monitors? I didn't think you could do that... 0 Quote Link to comment Share on other sites More sharing options...
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