Programmer Humor

That's VGA, it's gonna be fine. Most wires are either ground or not used for actual image data. R, G and B are analog so noise on those just makes the output noisy, no big deal. That leaves us with HSync and VSync. They are digital signals with 3.3V between on and off and only a single pulse per line / frame so they're also pretty robust against noise.

So unless you're going for an extremely high resolution on a really cheap monitor over a long distance, the worst that will happen is that your image will look grainy like TV static. It would take quite a bit of interference before the sync signals degrade enough to not get any image at all.

I once took a really crappy RS232 cable to India as part of some equipment to train our remote developers. The cable barely worked in our lab in the States. I told our hardware engineer that it wasn't going to work in India, and I was right. So in India I ended up having to wrap the entire wire bundle in a wire that I soldered to ground on both sides. Soldered it together with a plumbing soldering iron. I am a software engineer, but I have an electrical engineering degree. The VP that I was traveling with couldn't believe that the crap I made worked. Realistically, I couldn't either.

As someone who works in R&D in software/electronics, I can say I do this kind of thing regularly.

Unshielded wire in a guitar amplifier be like: "Ayo, how is everybody doing, let's go and MAKE SOME NOOOOOOISE!"

One time as a kid, I got myself in trouble and I got TV taken away from me - my dad came up to my room with a pair of scissors and just cut my coax cable. I stripped that bad boy and shoved the end back in to my TV, worked a treat. I also had my wifi antenna from my desktop taken from me at some point, so I took a paper clip and stuck it in there - not GREAT reception, but it was good enough!

Posted from my 2m aliexpress usb-c cable running at 40gbps

This image triggers me so much, but mostly because it is truer than I want to admit.

This reminds me of a mod around the time of the TI-83 ish , where you had solder diodes to a cable connecting two devices.

Now lets see the same hack but for the port above.

I've done some very dodgy things with VGA cables in an effort to route the cables through narrow bulkheads. For normal computer-to-monitor-lengths this is probably fine.

I haven't noticed much signal degradation below 4m-ish.

At 12m, you better solder properly and wrap some extra shielding around your splice.

Source: I've ran plenty of VGA cables between bridge computers and a deck monitor on ships.

This died with high-freq serial ports.

Honestly, couldn't we just transfer only the changes? Instead of sending the same pic 60, 120, ... times the second over. And how fast it can do the updating is the display frequency.

Glares at high-speed DAQ electronics and high-frequency analogue sensing circuits

PCB cries in EMI

Big Cable is the one generating all the noise to begin with!

I had to do this with a stlink debugger once. It worked.