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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

#111

Post by abakker »

halgir wrote: post #42
khazhoux wrote: post #25

Lately, I’ve become a fan of analog chairs. No Wi-Fi, no camera, no GPU. Besides the retro appeal, I actually find myself to be more creative!

That's just bad discipline on your part. Just because the options are there doesn't mean you have to constantly look at your chair every five minutes. My company is building a chair that doesn't compromise on features for when you need them, but elegantly hides them away when not in use so you won't be tempted every second of the day. We have room in our A round if you're interested.

but, does it have an API for chairGPT? If you don't have generative sitting by Q3 this year, you'll be missing the market.

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

#112

Post by sergioisidoro »

Holly crap! My screen has been randomly flickering every now and then. Tried everything to fix it, including disabling color calibrations, unplugging things, and disabling screen dimming. I have an Ikea chair, and sometimes get significant electrostatic discharges when I get up or touch metal elements.

I have a mechanical keyboard with a small piezoelectric buzzer, and sometimes I've heard it click, although it's unplugged.

Everything makes sense now D:

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

#113

Post by drbawb »

I have this same issue. Not an IKEA chair, but it is a similarly cheap office chair from some big box store. It only affects my external monitors connected to my TB3 adapter. I figured out the cause pretty quick, mostly because I assumed my monitors weren't averse to the curse words that spew from my mouth after such an "ESD event."

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

#114

Post by oakwhiz »

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…

Had a similar thing happen with "fake" (passive) PoE working fine but some types of network activity would cause the CPUs in the network devices to work harder, leading to voltage sag which would sometimes cause the remote side of the link to reboot or hang. The problem went away with a separate power supply for the local and remote side.

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

#115

Post by varjag »

mlyle wrote: post #30
yborg wrote: post #23

One of my first jobs 30+ years ago was ESD testing automotive and consumer electronics. I would spend a week with a discharge gun methodically running different discharge energies and waveforms both directly onto the devices as well as onto radiators at various distances from the device under test, as well as any cabling/harnessing that attached to the device. Then the design team would figure out the reason for any…

Cars are a terrible ESD and EMC environment and safety critical at the same time. Computer equipment usually does pretty well, especially after installation (when there's good ground path everywhere and it's in a chassis). Between ferrite beads and TVS, there's a pretty good amount of protection, and I've seen pretty few ESD anomalies-- a reset or two when touching connectors long ago is about the extent of it. RFI a…

A 100W transmitter is a crapload of energy, way beyond most consumer and industrial EM immunity requirements.

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

#116

Post by hammyhavoc »

aidenn0 wrote: post #94
hammyhavoc wrote: post #15

Earlier quoted context omitted.

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?

Everything is already balanced, that's a given.

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

#117

Post by Eduard »

mlyle wrote: post #30
yborg wrote: post #23

One of my first jobs 30+ years ago was ESD testing automotive and consumer electronics. I would spend a week with a discharge gun methodically running different discharge energies and waveforms both directly onto the devices as well as onto radiators at various distances from the device under test, as well as any cabling/harnessing that attached to the device. Then the design team would figure out the reason for any…

Cars are a terrible ESD and EMC environment and safety critical at the same time. Computer equipment usually does pretty well, especially after installation (when there's good ground path everywhere and it's in a chassis). Between ferrite beads and TVS, there's a pretty good amount of protection, and I've seen pretty few ESD anomalies-- a reset or two when touching connectors long ago is about the extent of it. RFI a…

TVS == Transient-voltage-suppression diode?

https://en.m.wikipedia.org/wiki/Transient-voltage-suppressio...

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

#118

Post by halgir »

abakker wrote: post #111
halgir wrote: post #42

Earlier quoted context omitted.

That's just bad discipline on your part. Just because the options are there doesn't mean you have to constantly look at your chair every five minutes. My company is building a chair that doesn't compromise on features for when you need them, but elegantly hides them away when not in use so you won't be tempted every second of the day. We have room in our A round if you're interested.

but, does it have an API for chairGPT? If you don't have generative sitting by Q3 this year, you'll be missing the market.

I'm building my own Large Chair Model with stricter restraints on emergent behavior. I want no part in fueling the rise of sentient chairs.

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

#119

Post by alin23 »

A lot of people told me about this “chair EMI turns off screen” after I published my “weird monitor bugs” article: https://notes.alinpanaitiu.com/Weird%20monitor%20bugs

Curiously, I never had someone contact me through https://lunar.fyi/ about this problem so I could not include it in the article. But it is mind boggling how many people have this problem and just now start to realize what is causing it.

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

#120

Post by Eduard »

mlyle wrote: post #30
yborg wrote: post #23

One of my first jobs 30+ years ago was ESD testing automotive and consumer electronics. I would spend a week with a discharge gun methodically running different discharge energies and waveforms both directly onto the devices as well as onto radiators at various distances from the device under test, as well as any cabling/harnessing that attached to the device. Then the design team would figure out the reason for any…

Cars are a terrible ESD and EMC environment and safety critical at the same time. Computer equipment usually does pretty well, especially after installation (when there's good ground path everywhere and it's in a chassis). Between ferrite beads and TVS, there's a pretty good amount of protection, and I've seen pretty few ESD anomalies-- a reset or two when touching connectors long ago is about the extent of it. RFI a…

> When I was operating a 100W 30MHz transmitter indoors ...

Ehm, can it still be considered "indoors" if it's 100W at 30MHz?

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