Monitor goes black randomly connected via 4-in-1 adapter and HDMI

[AlbanRampon]

Originally Posted by Alth

Hi, thanks for the reply.

Yes I am in a office with gas lift chairs.. how would that affect? I could try with another cable, and will update here again. Thanks for the suggestion.

I encourage you to have a look if the behaviour is really random or depends on when someone stands-up or sit down nearby.
These chairs are notoriously bad for electronics. Here is a paper published on the subject 23 years ago. I would advise using a better shielded HDMI cable. Your cable doesn't seem long enough to be the reason for the sensitivity, if you observe the temporary blink matches the chair gas compression/decompression.

[Alth]

Originally Posted by AlbanRampon

I encourage you to have a look if the behaviour is really random or depends on when someone stands-up or sit down nearby.
These chairs are notoriously bad for electronics. Here is a paper published on the subject 23 years ago. I would advise using a better shielded HDMI cable. Your cable doesn't seem long enough to be the reason for the sensitivity, if you observe the temporary blink matches the chair gas compression/decompression.

Hi, I've discovered that whenever a colleague of mine stands up from her gas lift chair, the problem will happen and the monitor will black out for a few seconds then come back on. Occurs 9 out of 10 times.. so I can presume this is indeed a case of chair ESD! Funny thing is it only happens with that particular colleague and her chair, doesn't happen with other chairs.

I've tried with another HDMI cable, the situation is better and doesnt blackout as often, but it still happens occasionally. Do you have any particular brand and model of cable that would be better shielded for my usage? As the problem can get quite disruptive to work at times.

And thanks very much for the insight and help!

[shingra]

In my case it seems that the reason for the problems was one of the last windows update on Win 10. Since I got another Windows update some days ago the "black outs" didn´t come back again.

[AlbanRampon]

Hello,

I'm afraid I don't have a brand or model specifically. If you take a cable which is supposed to work for high speed communication, you can hope it is of better quality.

You can test for ESD by using the old way of lighting the gas hob: a piezzo gas lighter.
A ferrite choke on the cable should also improve immunity as it is a filter.

Kind regards,
Alban

[piesof]

Hi. I have the same problem. I have a Samsung S27D390 monitor connected to a Dell M3800 via iTec USB 3.0 docking station. The monitor screen randomly goes black for a second, but device is not disconecting so I don't have to move windows back. Problem doesn't exist while the monitor is connected directly by hdmi. Issue occurs both on windows 8.1 and ubuntu 16.04. I replaced my hdmi calbe with a shorter and better one (with filters) - no effect. The only gas lift chair in surroundings is that I am sitting in, but I've tried and it doesn't affect screen in any way.
Is there any solution to this issue?

ps. I'am sorry about any language mistakes, English is not my strength :<