C4CA Posted May 20, 2020 Share Posted May 20, 2020 Installed several new active hdmi cables, all video sources go through Control4 video matrix for some reason Rokus are causing all screens to go black in and out regardless of source playing When I use old hdmis they work anyone have any ideas? Quote Link to comment Share on other sites More sharing options...
BuffaloC4 Posted May 20, 2020 Share Posted May 20, 2020 Roku might be at an incompatible resolution? Quote Link to comment Share on other sites More sharing options...
C4CA Posted May 20, 2020 Author Share Posted May 20, 2020 No it’s on auto and tried Different resolutions Quote Link to comment Share on other sites More sharing options...
Cyknight Posted May 21, 2020 Share Posted May 21, 2020 Active as in they draw power from HDMI? That's going to be why - officially you're not even supposed to draw power from HDMI. Quote Link to comment Share on other sites More sharing options...
C4CA Posted May 21, 2020 Author Share Posted May 21, 2020 Active as in active chipset https://www.vanco1.com/product/active-high-speed-hdmi-cables-with-ethernet/ they work fine on appletv and oppo Blu-ray Quote Link to comment Share on other sites More sharing options...
mujtaba.khokhar Posted May 21, 2020 Share Posted May 21, 2020 Stick to normal HDMI cables that can do 18gbps @ 4k and are HDCP 2.2 compliant. I use ICE HDMI cables and the cardboard inside the packet is great for notes on the fly lol https://www.icecable.com/products/clear-hdmi-s2-18g?color=2 Thanks M Quote Link to comment Share on other sites More sharing options...
DLite Posted May 21, 2020 Share Posted May 21, 2020 I don't have a video matrix, but I had this same problem with active HDMI cables and my Roku Ultra. Is your Roku set to "auto detect display?" If so, try changing it to a fixed display type. That solved my problem. As an aside, I did have a similar "in and out black" problem with my Oppo UDP-203 and my active cables too. I solved it pretty much the same way. Active HDMI cables are kind of a pain, but the Key Digital balun they replaced in our house was an even bigger pain. That thing never passed HDR signals properly, even though Keystone tech support swore up and down that it would. But I digress.... Quote Link to comment Share on other sites More sharing options...
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