Sydney Posted April 8, 2015 Report Share Posted April 8, 2015 I'm working on a show which requires long video cable runs of 25m and beyond. Rather than breaking out over Cat5/6 I've tried connecting a 40m boosted/active HDMI lead to my display PC's FirePro w600 card with active mini display port to HDMI adaptors. There's no signal to the display but if I connect a professional media player to the same 40m boosted HDMI cable run it works okay. Is the active HDMI lead incompatible with my active display port to HDMI adaptors, or is there another reason why the long cable isn't working?? Quote Link to comment Share on other sites More sharing options...
NNinja Posted April 9, 2015 Report Share Posted April 9, 2015 Try to use HDMI cable equilizer or amplifier at the end of the cable I'm using 30m Extron cable connected to Firepro W9100 & 7100 with no problems and no amplifier and for the 40m cable I've used DVI101 as an amplifier Quote Link to comment Share on other sites More sharing options...
Moderator jfk Posted April 9, 2015 Moderator Report Share Posted April 9, 2015 When discussing display cable lengths, resolution and refresh rate (total bandwidth) are significant as well. i.e What may work at 100' for 1400x1050@60p Hz may not work the same for 1920x1080@60p This is especially true for long copper runs. Quote Link to comment Share on other sites More sharing options...
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