HDMI video output blacks out intermittently

Hi,
I am using Blackmagic intensity Pro 4K on my PC and Nvidia graphics card. The video output from my Sony video camera goes to capture card using 5m long HDMI cable. I am using VMix 21.0 for streaming the same video. This configuration is being used in all 3 computers in my organization for live streaming.

My problem is that at random times, the input to VMix becomes blank with black screen. The issue is only resolved when the HDMI cable is plugged out and reinserted after a few minutes. This happens across all three computers at random times.

Could you please suggest possible cause and solution.

Thanks,
Sangram

The issue is the 5m cable, BM devices do not like long HDMI cable runs, 3m max.
Cheers

Could ferrite clamps do any good in this case ?
otherwise HDMI "over" fiber would be a solution for long distances, maybe over ethernet would be more cost effective.

The issue is the 5m cable, BM devices do not like long HDMI cable runs, 3m max.
Cheers

Denny, I received the same suggestion from Blackmagic customer care. I will give it a try in a day or two. I hope the issue is resolved with the solution.

Thanks for your reply.

Could ferrite clamps do any good in this case ?
otherwise HDMI "over" fiber would be a solution for long distances, maybe over ethernet would be more cost effective.

Hi Eric,
I didn't take the ferrite clamps into consideration. Thanks for pointing it out.
I will try to confirm if the cable has genuine ferrite clamps, there are lot of fake ones these days.

Could you please explain 'HDMI over fiber'.

Thanks again.

There are "adapters" with in between fiber cable, the fiber can be much longer, so you have in fact a fiber cable with HDMI in, and HDMI out on the other end, same is also valid for the Ethernet version, this way you can have more distance between your HDMI devices, but for 5 meters some sort of amplifier/switch/repeater is more cost effective, is my guess, I don't know exact which solution you might need.

The best solution is to use two Micro or Mini Converters to go from HDMI to SDI and SDI back to HDMI, if the capture card does not have SDI inputs. It it does, then you only need the HDMI to SDI Converter on the camera end.

Also a good solution ! and you can allways use these in another setup later i guess, i googled for HDMI fiber cables, you could be a bit cheaper, but you know you have good quality hardware with the BMD hardware, and support. you then only must know for yourself if you want higher resolutions in the future, with your choice.
(2x Micro Converter BiDirectional SDI/HDMI + SDI cable = BMD option, up to 1080p60 resolution)
Or you might look into a DeckLink card (various options) this would replace your recent capture card, but then you have SDI in and outputs, (you gain also monitoring options) checkout the BMD products section.

(btw. overheating is no problem in your setup ?)