[akarlsten]

Had the same issue a while back, had a hell of a time figuring out why one of my screens would flicker or shut off momentarily whenever my girlfriend sat down at her desk (which is next to mine). Even initially figuring out that it was the act of her sitting down that caused it took some time, with a lot of jokes about her telepathically messing with my setup in the meantime.

Turns out that the gas piston in her chair (not an IKEA chair in this case) has a bit of "give" to cushion oneself when sitting down, and that compression caused some kind of electromagnetic pulse (I assume?) strong enough to mess with the monitor.

I do wonder if it's perhaps bad for the monitor's lifespan, but it only affected my cheapest one, and with the cause found I can live with it.

[plastic3169]

Wow, this is great. I have similar chair and monitor problems. Never have been able to connect the two.

[treeman79]

There is a noise filter that you can clip onto the power line or other cables to help prevent radio transmissions from going into the line or other sources of noise.

Maybe one of the cables is acting as an antenna.

https://www.amazon.com/VSKEY-Anti-interference-Telephones-Eq...

[JerryB77]

A friend of mine bought IEMs with a microphone (Moondrop Chuu) and it would pick up radio frequencies that you could hear through a voice call. These didn't end up fixing it, I suspected it was bad grounding but we never ended up solving what the root cause was.

[hammyhavoc]

With 300+ cables in my setup for audio, that's not what I want to read.

[aidenn0]

It's much less of an issue with balanced leads, so just use those?

[hammyhavoc]

Everything is already balanced, that's a given.

[atoav]

Yeah but is everything balanced or are you mixing the two? And if everything is balanced is everything properly grounded?

Incredible read on that topic: https://www.ranecommercial.com/kb_article.php?article=2127

[rubatuga]

How about shielding and grounding

[r2_pilot]

A similar device does not suppress the chair/monitor effect for me. Although that monitor is particularly bad (an Asus Rog, no less!).

[The_SamminAter]

Oh, so that’s what those are! I’ve got a few USB-mini cables (that I think came with a PS3) that have those.

[orbital-decay]

I had exactly this issue with a chair gas piston and a large tablet display (drawing tablet), which is presumably more sensitive to EM/ES interference than ordinary screens since it's large, not battery-powered, and has both touch and stylus support.

[winwhiz]

I have this problem too! I have been trained to roll away from my desk before I stand up. I assumed it was static, and my hat's off to you who tracked this down.

Steelcase Criterion / Dell S2716DG

[secretsatan]

Most off the monitors and chairs in our office had this problem, no one could figure it out for ages