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Check if your IKEA chair is compatible with your screen

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Re: Check if your IKEA chair is compatible with your screen

#91

Post by mastax »

With my new carpet and habit of wearing slippers I've had a lot of trouble with ESD. Big painful zaps that would reboot my keyboard and sometimes cause other mischief. I was worried about causing permanent damage. I got in the habit of touching the grounding screw on the wall outlet while sitting down which basically fixed it.

Strangely, if the computer is asleep it will wake up when I zap the ground screw. I'm still wondering how that happens. I guess it gets picked up by the wires which run to the power button? My PC case is pretty awful at EMI shielding like most modern custom PC cases.

Re: Check if your IKEA chair is compatible with your screen

#92

Post by mastax »

I've been looking for a large comfortable neoproene mousepad/desk pad which is conductive and can be grounded. I think this would help prevent damaging your computer or peripherals from ESD.

I haven't been able to find anything. The electronics industry ESD mats are rubber for temperature resistance and cleaning, but not comfortable or good for mousing. I found some small cheap mousepads on AliExpress that claim health benefits from grounding but nothing large or high quality.

Re: Check if your IKEA chair is compatible with your screen

#93

Post by Kirby64 »

mastax wrote: post #92

I've been looking for a large comfortable neoproene mousepad/desk pad which is conductive and can be grounded. I think this would help prevent damaging your computer or peripherals from ESD. I haven't been able to find anything. The electronics industry ESD mats are rubber for temperature resistance and cleaning, but not comfortable or good for mousing. I found some small cheap mousepads on AliExpress that claim heal…

Almost all components and peripherals have ESD protection built into them, designed specifically to prevent human contact causing issues. There should be no reason to be worried about damaging your peripherals (or, especially, your PC). Are you having issues with components dying randomly or something?

Re: Check if your IKEA chair is compatible with your screen

#94

Post by aidenn0 »

hammyhavoc wrote: post #15
treeman79 wrote: post #8

Earlier quoted context omitted.

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...

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

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

Re: Check if your IKEA chair is compatible with your screen

#95

Post by SenHeng »

I recently bought Dell’s latest 32” monitor to connect to my 2018 Mac mini and I’ve noticed that the screen blacks out for a few seconds randomly. I did a bit of a search and there were a few mentions of static possibly being a culprit. Didn’t actually try to confirm it though and now I’ll never get the chance to because I’ve switched 1) desk placement, 2) desk, 3) Mac Studio.

The problem has gone away.

I don’t have a IKEA chair, currently using a Herman Miller Embody but I do (did) have an IKEA desk. A bamboo worktop, a chest on one side and those weird, A shaped legs on the other.

Re: Check if your IKEA chair is compatible with your screen

#96

Post by Kirby64 »

etiam wrote: post #3

Remotely related, my screen makes a noise, somewhere between static and a whine, while displaying certain text files. Minimizing or closing the editor stops the noise, getting the text back on display restores the noise. I suppose it's some sort of resonance phenomenon.

Is this a Samsung G-series (G7/G9)? I returned a G7 that would make a high pitched noise and also dim the entire screen when certain patterns displayed. It also did this very strange 'interlacing' behavior which was apparently a known problem with Samsung monitors. Maybe something similar for you.

Re: Check if your IKEA chair is compatible with your screen

#97

Post by fsckboy »

you should NOT ground your chair directly, only ground it through a large resistor, 100K or so. (you might want to check that value, it's from memory, I think you want any potential electric "shock" to be down below the 1 milliAmp range)

I'd use a ground strap designed for wearing while you handle MOSFET ICs.

if you ground your chair directly, it is likely to make YOU be the best circuit to ground when you handle your computer or monitor's AC "mains" (us "uk") power cords.

The resistor will allow static discharge (very few coulombs at very high voltage) but limit the flow of electricity

Re: Check if your IKEA chair is compatible with your screen

#98

Post by glitchc »

tambourine_man wrote: post #50
blueflow wrote: post #14

I once had the problem that running make with too many parallel jobs (-j) would change my keyboard layout. The machine was some laptop mainboard glued to the backside of my monitor, and the USB socket came out at the top of the mainboard. On its way down, the USB cable for the keyboard passed across the whole mainboard. On high load, the mainboard created enough interference to cause the connection to reset, re-hotpl…

https://xkcd.com/1172/

Love that comic! Totally relevant.

Re: Check if your IKEA chair is compatible with your screen

#100

Post by vidarh »

tambourine_man wrote: post #71
vidarh wrote: post #28

When I was a kid we had to return my Commodore 64 for repair several times, only to be told that once they got to it, after it had been waiting at the store for a few days, there were no problems with it. Turned to be a result of storing the C64 on a bench under the "large" 26" CRT... When it was kept away from it for a while and had a chance to discharge, everything was ok. But after a while near the TV, it started…

Either that or a ghost. Back in the eighties they’re more common. Who you’re gonna call?

Ghostbusters was amazing on the C64. Mostly because of the few seconds of digitized speech and "karaoke style" song lyrics scroll on the title screen.
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