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OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
499•klaussilveira•8h ago•138 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
836•xnx•13h ago•503 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
53•matheusalmeida•1d ago•10 comments

A century of hair samples proves leaded gas ban worked

https://arstechnica.com/science/2026/02/a-century-of-hair-samples-proves-leaded-gas-ban-worked/
110•jnord•4d ago•18 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
164•dmpetrov•8h ago•76 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
166•isitcontent•8h ago•18 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
59•quibono•4d ago•10 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
279•vecti•10h ago•127 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
339•aktau•14h ago•163 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
222•eljojo•11h ago•139 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
332•ostacke•14h ago•89 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
421•todsacerdoti•16h ago•221 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
34•kmm•4d ago•2 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
11•denuoweb•1d ago•0 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
360•lstoll•14h ago•248 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
15•gmays•3h ago•2 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
9•romes•4d ago•1 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
58•phreda4•8h ago•9 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
209•i5heu•11h ago•156 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
33•gfortaine•6h ago•8 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
121•vmatsiiako•13h ago•51 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
159•limoce•3d ago•80 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
257•surprisetalk•3d ago•33 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1013•cdrnsf•17h ago•422 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
51•rescrv•16h ago•17 comments

I'm going to cure my girlfriend's brain tumor

https://andrewjrod.substack.com/p/im-going-to-cure-my-girlfriends-brain
93•ray__•5h ago•43 comments

Evaluating and mitigating the growing risk of LLM-discovered 0-days

https://red.anthropic.com/2026/zero-days/
44•lebovic•1d ago•12 comments

WebView performance significantly slower than PWA

https://issues.chromium.org/issues/40817676
10•denysonique•5h ago•0 comments

How virtual textures work

https://www.shlom.dev/articles/how-virtual-textures-really-work/
35•betamark•15h ago•29 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
81•antves•1d ago•59 comments
Open in hackernews

Notes on the Troubleshooting and Repair of Computer and Video Monitors

https://www.repairfaq.org/sam/monfaq.htm
55•WorldPeas•2mo ago

Comments

notherhack•2mo ago
(2009) And this is about CRT monitors. Is there something like this for the LCD monitors we all use today?
tom_•2mo ago
Is it economically worthwhile to attempt to repair them? They seem to be generally reliable, and replacements of any kind are cheap. Certainly cheaper than having somebody else figure out the problem and probably cheaper than having you do it too. Especially once you add in any equipment involved, multiplied by the likelihood (low) of having to do this repeatedly.
toast0•2mo ago
> Is it economically worthwhile to attempt to repair them?

In a developed economy, maybe barely. Depends on the monitor, and what's wrong with it. If you're good enough at soldering, and it's just a capacitor in the power supply issue, and the case isn't going to fall apart when you open it, sure. But if you have to hire help, or replace a module, probably not.

In places where skilled labor isn't going to billed at $100/hr or more, then there's more you can do ... I don't think it's worth replacing a panel if the panel (or its wiring) go, but you can replacing modules likely makes sense, if you can source them; maybe some light module repair too if it's just cold solder joints need rewetting.

_carbyau_•2mo ago
Depends. I'm not sure you could make a business out of just fixing monitors. As another thing the phone repair shops can fix - maybe?

As for why? $ per benefit.

I had a pair of Samsung 204B screens I liked. I didn't see dollar per benefit in upgrading from 1600x1200 4:3 to 1920x1080 16:9.

They went funny, I obtained a capacitor, pop the back off, unsolder and solder new cap, put the shell back on. Job done. 20 minutes per screen because man, am I bad at soldering...

They worked happily for another 5 years each. Until society got well past the 1080p rut and into proper 1440 and 4k etc screens which were actually worth upgrading to.

Edit: make shorter

LargoLasskhyfv•2mo ago
1920x1200 in 23" or 24" were an OK upgrade from 1600x1200 CRT 21" for me. I did the stuff you did on an 18" 1280x1024 SPVA LCD from Fujitsu-Siemens. Since I hadn't soldered for a long time, I just bought that stuff 2 times, because the parts were a few cents only. Didn't need them 2 times, though :-) Worked for some mainboards in similar ways. Except I've been afraid to completely desolder them on mulitlayer mainboards, for fear of destroying the VIAs/through-holes. Just pulled the capacitor from it's pins still stuck in, cleaned them, and soldered the new one(s) onto the old pins. Looked like sort of a water tower in miniature, but the boards worked flawlessly afterwards. For years :-)
ssl-3•2mo ago
Depends on what's wrong, and how much a person's free time is worth.

The panel? No. The panel was the singular expensive part, and the cheapest and most available way to get a new panel is usually to buy it in a retail box with the rest of the monitor already wrapped around it.

The backlight tubes? Surprisingly enough: Yeah, if a person really wants to do that, and if the display uses fluorescent backlight, then sometimes the tubes are replaceable. (LED backlight is basically ubiquitous on newish displays and is, AFAIK, kind of a non-starter to dig into repairing. But it might be do-able by swapping bits from a broken panel if one were sufficiently motivated.)

Power supply bits? Sure. It's just a power supply, right? Power supplies are often repairable or replaceable. (I've repaired power supplies in LCD screens myself, and I'm pretty lousy at component-level troubleshooting.)

Broken connectors and switches such? Very repairable. (Difficulty depends a lot on how much, if any, of the board also got destroyed, but generally speaking hot air soldering is a lot easier than it looks like it should be.)

Mechanical issues, like a wonky stand or broken housing? Often repairable. (The screen I'm writing this with has a cast zinc base that broke due to metal fatigue. I've fixed it twice: Once with two part epoxy, and a second time by adding CA glue when the epoxy's grip on the zinc failed.)

unethical_ban•2mo ago
I have an OLED that crapped out and I didn't get around to sending it back to the OEM while in warranty. I suspect the issue is some minor component burned out, as the monitor powers on and the desktop recognizes it.

I have no idea what to do with it though and tossing it feels wrong.

pmontra•2mo ago
If you kind of know how to fix the problem and if you are doing it in your spare time as any other house tidying activity, yes, it's worth it. Add to it the value of the fun, if you're that kind of person. If you are spending a day instead of working, probably it's not worth it unless it's a very expensive monitor.
delta_p_delta_x•2mo ago
> replacements of any kind are cheap

Of a bog-standard 1080p 60 Hz monitor, perhaps.

I have a 4K 144 Hz 27-inch monitor I bought in December 2021, and paid nearly $850 for. These monitors still aren't a commodity good, and still end up being pretty expensive.

Jordan-117•2mo ago
Bit of a tangent but maybe this a good place to ask: I've been trying to diagnose a weird display issue on my 4K IPS monitor. It seems to have a stuck pixel, which looks bright green on a dark background. But weirdly, the pixel changes color if you move your head from left to right, cycling from bright green to hot pink to purple and then back to green (though it doesn't change color when moving your head up and down). Also, it seems to "float" slightly above the actual pixels. For ex, if I open a paint program and draw a straight vertical line directly adjacent to it, there's a gap when looked at from the right, but it seems to overlap the line when seen from the left.

Anybody experience an issue like this before, or know if it has a fix? I've searched but only find discussion of regular stuck/dead pixels.

simoncion•2mo ago
> Anybody experience an issue like this before...

I have, but only when I've gotten something on the monitor (like liquid droplets or thin hairs placed just right) that did funny things. Have you carefully cleaned your screen recently?

If it's not crud on the screen, then my vaguely-educated layman's guess based on the symptoms is that some part of the light guide layer between the tiny shutters and external surface of the screen [0] has gotten damaged somehow.

[0] Would this be called a polarizer? I'm not sure.

Jordan-117•2mo ago
Considered that, but I've wiped, scratched, and put light pressure on the spot with no visible change. Not sure how it could have been damaged in one pixel-sized spot without affecting the surface or any surrounding pixels.
simoncion•2mo ago
Sure, I also don't know how this damage could have happened. But, I do know that much, much larger structures sometimes buckle and break for no immediately-obvious reason. I don't see why the same wouldn't be true for extremely tiny ones.
RiverCrochet•2mo ago
I think you have an actual tiny physical chink in the plastic or glass on the surface of the panel. Especially if you run your finger across it and can feel it.
Jordan-117•2mo ago
It feels perfectly smooth -- like the flaw is somehow between the surface and the pixel layer.
qazwsxedchac•2mo ago
That's exactly where the flaw likely is, on the side of the top surface layer which faces away from you. Air bubble in the plastic, or dust inclusion. If you really want to get to the bottom of it, put a 30x pocket microscope over the spot, you'll see the problem clearly. The bad news: It's neither fixable, nor covered by "dead pixel" / "stuck pixel" warranty policies.

(Source: First hand experience.)

autoexec•2mo ago
> With new monitors going for under $200, the costs of any significant repair are no longer justifiable unless there is something unique about your monitor.

When it comes to CRTs this is probably more true today that it was when this was written. I can imagine a future though where more people seek to repair their non-CRT monitors as stores stop selling normal computer monitors to push "smart" monitors filled with ads and anti-features.

I've still got a massive sony trinitron desktop monitor that stopped working properly but is so heavy I've neglected to get rid of it. I keep hoping I'll come across some old TV repair guy who can give it life again for a reasonable fee because it was honestly the best monitor I ever had and I'd love to be able to use it again with older systems even though it weighs a ton, takes up a huge amount of space, and will throw off enough heat to raise the room temperature.

squigz•2mo ago
> When it comes to CRTs this is probably more true today that it was when this was written. I can imagine a future though where more people seek to repair their non-CRT monitors as stores stop selling normal computer monitors to push "smart" monitors filled with ads and anti-features.

I sort of doubt this will happen. Computer monitors are used by professionals in every industry all over the world. Going the way of smart TVs - which are more consumer-facing - would not make any sense.

autoexec•2mo ago
Smart monitors are being widely sold already and getting more common. The fact that they generate continuous income for the manufacturer after the sale is too tempting for many companies to abandon entirely.

Most likely we'll see non-smart monitors only sold in bulk to business customers, or as highly overpriced displays with limited features (like we do now with TVs) or there will be enterprise options in software (probably though management software) to disable some (but not all) of the advertising, screen-capturing, and AI functions which is just what we see now with Windows and other hardware used by enterprise customers.