Latest posts for tag pdo

This is part of a series of posts on the design and technical steps of creating Himblick, a digital signage box based on the Raspberry Pi 4.

One day after the first deploy, we went to check how the system was doing, and noticed some fine tuning to do, some pretty much urgent.

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Testig himblick automatic media replication
Testig himblick automatic media replication

This is part of a series of posts on the design and technical steps of creating Himblick, a digital signage box based on the Raspberry Pi 4.

Another surprise hits us at the last moment: if the system boots without an HDMI monitor plugged in, no framebuffer device is ever created, and X will not start, lightdm will give up after some tries, and even if one plugs in a monitor afterwards, it will stay blank until a reboot or some kind of manual intervention.

As a workaround, one can configure the bootloader to force a specific HDMI configuration. This post documents how we did it.

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Pile of Raspberry Pi 4 boxes
Pile of Raspberry Pi 4 boxes

This is part of a series of posts on the design and technical steps of creating Himblick, a digital signage box based on the Raspberry Pi 4.

Provisioning a SD card starting from the official raspbian-lite is getting quite slow, since there are a lot of packages to install.

It would be significantly faster if we could take a SD card, partition it from scratch, then untar the boot and rootfs partition contents into them.

Here's how.

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This is a comic about the backfire effect.
The Barnum effect, also called the Forer effect, or less commonly the Barnum-Forer effect, is a common psychological phenomenon whereby individuals give high accuracy ratings to descriptions of their personality that supposedly are tailored specifically to them, that are in fact vague and general enough to apply to a wide range of people. This effect can provide a partial explanation for the widespread acceptance of some paranormal beliefs and practices, such as astrology, fortune telling, aura reading, and some types of personality tests.
We only use 10% of our brain. We evolved from chimps. Dairy foods increase mucous. Pfffff! These and over 45 other myths & misconceptions debunked. Interactively.
Psychology's reproducibility problem
“Slim by Chocolate!” the headlines blared. A team of German researchers had found that people on a low-carb diet lost weight 10 percent faster if they ate a chocolate bar every day. It made the front page of Bild, Europe’s largest daily newspaper, just beneath their update about the Germanwings crash. From there, it ricocheted around the internet and beyond, making news in more than 20 countries and half a dozen languages. It was discussed on television news shows. It appeared in glossy print, most recently in the June issue of Shape magazine (“Why You Must Eat Chocolate Daily,” page 128). Not only does chocolate accelerate weight loss, the study found, but it leads to healthier cholesterol levels and overall increased well-being. The Bild story quotes the study’s lead author, Johannes Bohannon, Ph.D., research director of the Institute of Diet and Health: “The best part is you can buy chocolate everywhere.”
For the next two weeks, a Tube station in South London will create a rip in the space time continuum. The Citizens Advertising Takeover Service has replaced 68 adverts in Clapham Common with pictures of cats.

This is part of a series of posts on the design and technical steps of creating Himblick, a digital signage box based on the Raspberry Pi 4.

A month later, we tried building an himblick image and it stopped playing video with vlc, only showing a black screen.

Although we're working with Rasbian Buster, and Debian Buster is stable, it looks like Raspbian Buster is not stable at all.

Time to learn how to freeze a partial raspbian mirror.

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I'm too lazy to manually check code blocks in autogenerated sphinx documentation to see if they are valid and reasonably up to date. Doing it automatically feels much more interesting to me: here's how I did it.

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Build this blog in under one minute
Build this blog in under one minute

I just released staticsite version 1.4, dedicated to creating a blog.

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Amelio Robles Ávila (3 November 1889 – 9 December 1984) was a colonel during the Mexican Revolution. Assigned female at birth with the name Amelia Robles Ávila, Robles fought in the Mexican Revolution, rose to the rank of colonel, and lived openly as a man from age 24 until his death at age 95.
Alan L. Hart (October 4, 1890 – July 1, 1962) was an American physician, radiologist, tuberculosis researcher, writer and novelist. He was in 1917–18 one of the first trans men to undergo hysterectomy in the United States, and lived the rest of his life as a man. He pioneered the use of x-ray photography in tuberculosis detection, and helped implement TB screening programs that saved thousands of lives.[1]
Many people have engaged in cross-dressing during wartime under various circumstances and for various motives. This has been especially true of women, whether while serving as a soldier in otherwise all-male armies, while protecting themselves or disguising their identity in dangerous circumstances, or for other purposes.
Breeching was the occasion when a small boy was first dressed in breeches or trousers. From the mid-16th century[1] until the late 19th or early 20th century, young boys in the Western world were unbreeched and wore gowns or dresses until an age that varied between two and eight.[2] Various forms of relatively subtle differences usually enabled others to tell little boys from little girls, in codes that modern art historians are able to understand.
Sull’opportunità di rimarcare o meno le differenze di genere negli anni della prima infanzia è stato scritto tutto e il contrario di tutto. Indipendentemente da ciò che ognuno di noi può pensare, ancora una volta pare proprio che la storia smentisca solide convinzioni.
Lynn Ann Conway (born January 2, 1938)[2][3] is an American computer scientist, electrical engineer, inventor, and transgender activist.[4]
We believe we have to be the heroes only because we can't yet see other roles for ourselves.
A glass ceiling is a metaphor used to represent an invisible barrier that keeps a given demographic (typically applied to minorities) from rising beyond a certain level in a hierarchy.[1]
The glass cliff is the phenomenon of women in leadership roles, such as executives in the corporate world and female political election candidates, being likelier than men to achieve leadership roles during periods of crisis or downturn, when the chance of failure is highest.
I discovered the men’s rights movement when I was 22, working at a bookstore in downtown Kelowna, British Columbia. I was trying to earn some...
Software for MS-DOS machines that represent entertainment and games. The collection includes action, strategy, adventure and other unique genres of game and entertainment software. Through the use of the EM-DOSBOX in-browser emulator, these programs are bootable and playable
The games available on this page were all created by students of the MIT Game Lab and for research purposes. These games are short, 5-15 minute experiences, each made as a polished vertical slice of gameplay. Find out how these games were made and how they're used by our researchers!
Hi and welcome to User Inyerface, a challenging exploration of user interactions and design patterns.
How do you design a game for friendship, when the players are interacting over the internet? Can you do this without even letting them speak, or see each others' faces? Chris Bell tackles the issue.