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Category: Technology

Attempt to repair short on motherbord

At work, we had a small embedded PC that had a short in the mainboard. I attempted a fix, mostly for educational purposes. It wasn't successful, but I wanted to post the method and result anyway. The method I used is elaborately explained on Youtube, so go hunt there for more details. Read More »

Garbled screen in tmux on Ubuntu 18.04 in Konsole

There is a bug in Konsole with tmux: lines often aren't cleared properly. To fix, put this in tmux.conf: Read More »

The major and minor pains of developing for Magento 2

Much PHP code suffers from underengineering. Of course, this isn't true for all PHP code. Some PHP code is plagued by the other extreme—overengineering. No, today I'm not talking about Smarty, that sad templating engine written in a the glorified template processor that is PHP. Today [and probably contineously revising the post for months], I'm talking about Magento 2. Magento 2 is what you get when the intern gets crushed under the object orientation shelf in the library: slow, agonizing torture, but only after you've recompiled and cleared the cache. Read More »

Nginx maintenance page

Just some example code for an nginx maintenance page: server { listen 80; listen 443 ssl; server_name; Read More »

Softstarter (ballast start) relay charred after years of use

This is an interesting case. I made a sound system for a friend in 2012. In it is a soft-starter, that engages the heavy transformer through a ballast, so that the fuse doesn't trip. This is it: Read More »

Digital audio passthrough on TVs

I was researching how TVs pass through audio coming in from HDMI, and I found this. Just dumping it here as memory. Read More »

Spectre and Meltdown Status

Just some quick links with the status of Spectre and Meltdown: Read More »

Writing bootable disk images (.iso, .img, etc.) to a USB stick from Windows

Because Windows doesn't have dd, and I want to write the latest Mint LTS release to a USB task, I had to face the unpleasant task of finding a Windows tool to perform what's a basic Unix operation. The good news is that I found one, and it's open source: Win32 Disk Imager. It even has a version ≥ 1, titled: “Holy cow, we made a 1.0 Release”. Read More »

Low noise linear power supply

Just as a note to self mostly: this is an interesting article about the noise in a LM317/LM337 based power supply. Read More »

Web print is still shit, even for CSS2 print features

Having spent ten yours out of the loop, I had somehow expected browser makers to take some time out of their favorite hobby—moving knobs and settings around—to implement CSS printing support. I'm all for saving paper and all, but requiring me to pipe my HTML through LaTeX to produce halfway decent documents doesn't feel very 2017ish to me. In 2007, it already didn't even feel very 2007is to me. Read More »