I got RED SCREEN when connecting hdmi dvi to led screen

[Perceptiv]

So a few days ago I was in an event and my laptop (MSI GS65 8rf, i7-8750H, GeForce 1070 max-q, 16GB DDR4), and it was fully working connected through HDMI->DVI to a sender to a LED Screen.
But at a certain moment, me and the technicians noticed that the shadows where fully crisped so we decided to connect the video processor instead of the direct from the sender.
After some trials and errors, we got to the conclusion and the processor wasn't fully functioning and of course, let's connect everything back to how it was.
After doing that as soon as I plug the HDMI to my laptop I got a RED SCREEN but the image still shows. The red stands out overlapping everything, and if we plug the hdmi to the technician laptop everything worked alright.

Can anyone explain me what could this be?

I installed new graphic drivers on my laptop and nothing worked out..

[Arvol]

What is a "sender" as a LED wall engineer the "sender" is the LED Processor "Sending Card" to be exact.

I've had a few scenarios that required me to completely remove and re-add the HDMI cable from both ends of the chain (laptop and fiber extension for an example). Sometimes the cables don't seat right and I get a RGB shift (weird, right?!).

Can you write down your signal chain like this as an example:

laptop>3' hdmi>ubex fiber box>200M single mode fiber>ubex fiber box>3' hdmi cable>novastar 4k led processor>50M cat6>led panel

This way we can see what's in line processing your signal.

Thanks

[Perceptiv]

Thanks for the reply Arvol!

Correct, the sender is a senderbox.

The signal chain on that event was:
laptop > hdmi - DVI > senderbox linsn SB-08 > 10m cat 6 > led screen linsn receiver

[Arvol]

I haven't touched a Linsen system in about a decade. It sounds like something on their end. When you connect your laptop to another external display, do you get a red screen?

[Perceptiv]

No I dont

[Perceptiv]

So, yesterday I worked with the same setup has last time, they changed the cables and it happens the same thing.
This time I connected another pc and it works fine but on my laptop once I connect the HDMI to my hdmi out port RED shift appears but if I connect the same hdmi cable in a display port adapter on my display port out it works fine.
I tested at home the HDMI out on a tv or screen projector and it works¿¿??
How is this possible? What could it be?

[Arvol]

Sounds like a flakey cable or port to me.

[visions]

Try changing video settings (different resolution / refresh rates). Some send cards find it difficult to detect certain signal types.