Language Selection

English French German Italian Portuguese Spanish

today's leftovers

Filed under
Misc
  • Is it an upgrade, or a sidegrade?

    I went to a nearby store, looked at the offers... And, in part due to the attitude of the salesguy, I decided not to (installing Linux will void any warranty, WTF‽ In 2018‽). Came back home, and... My Acer works again!

  • How To Install KDE Plasma Mobile On Your Android Smartphone?

    New Linux-based mobile operating systems and hardware projects have been making numerous headlines in the recent months. Projects like postmarketOS, Plasma Mobile, Librem 5, etc., have managed to gain momentum and support of open source community.

    To give you a rough idea of how things are going on the Plasma Mobile land, its developers have shared two methods (Via: Softpedia) to test Plasma Mobile on an actual Android smartphone. In a previous post, they also shared virtual machine images of the OS.

  • A KDE Love Story: Translating Kalzium into Chinese

    When I was a high school student, chemistry was not my cup of tea. My grades in chemistry were not bad either, but I hated memorizing those organic compounds. Then, I decided to major in computer science at university, and from that moment, destiny tightly bonded me and Free and Open Source Software.

  • Last week in Kube
  • fwupd now tells you about known issues

    That one little URL for the user to click on is the result of a rule engine being added to the LVFS. Of course, firmware updates shouldn’t ever fail, but in the real world they do, because distros don’t create /boot/efi correctly (cough, Arch Linux) or just because some people are running old versions of efivar, a broken git snapshot of libfwupdate or because a vendor firmware updater doesn’t work with secure boot turned on (urgh). Of all the failures logged on the LVFS, 95% fall into about 3 or 4 different failure causes, and if we know hundreds of people are hitting an issue we already understand we can provide them with some help.

  • I love free software… and Gentoo does! #ilovefs

    Some people care if software is free of cost or if it has the best features, above everything else. I don’t. I care that I can legally inspect its inner workings, modify and share modified versions. That’s why I happily avoid macOS, Windows, Skype, Photoshop.

  • Multiplexing Input or Output on a Raspberry Pi Part 1: Shift Registers

    A Raspberry Pi doesn't have that many GPIO pins, and neither does an Arduino Uno. An Arduino Mega does, but buying a Mega to go between the Pi and the keyboard kind of misses the point of scavenging a $3 keyboard; I might as well just buy an I2C or MIDI keyboard. So I needed some sort of I/O multiplexer that would let me read 31 keys using a lot fewer pins.

    There are a bunch of different approaches to multiplexing. A lot of keyboards use a matrix approach, but that makes more sense when you're wiring up all the buttons from scratch, not starting with a pre-wired keyboard like this. The two approaches I'll discuss here are shift registers and multiplexer chips.

  • Fanless, Linux-friendly Kaby Lake mini-tower drives seven 4K displays

    Compulab’s rugged “Airtop2” mini-tower runs Linux Mint or Win 10 on a Xeon E3-1275 or Core i7-7700 CPU with optional Nvidia Quadro P4000 graphics plus up to 64GB DDR4, a 6-drive NVMe/SATA subsystem, up to 7x display ports, and optional M.2 and FACE modules.

More in Tux Machines

New Raspberry Pi A+ board shrinks RPi 3B+ features to HAT dimensions

A HAT-sized, $25, Raspberry Pi 3 Model A+ will soon arrive with the same 1.4GHz quad-A53 SoC, dual-band WiFi, and 40-pin GPIO of the RPi 3B+, but with only 512MB RAM, one USB, and no LAN. As promised, Raspberry Pi Trading has revived its old mini-size, four-year old Raspberry Pi Model A+ SBC with a new Raspberry Pi 3 Model A+ model. Measuring the same 65 x 56mm as the earlier $20 RPi A+, the SBC will go on sale in early December for $25. Read more

Android Leftovers

Canonical Extends Ubuntu 18.04 LTS Linux Support to 10 Years

BERLIN — In a keynote at the OpenStack Summit here, Mark Shuttleworth, founder and CEO of Canonical Inc and Ubuntu, detailed the progress made by his Linux distribution in the cloud and announced new extended support. The Ubuntu 18.04 LTS (Long Term Support) debuted back on April 26, providing new server and cloud capabilities. An LTS release comes with five year of support, but during his keynote Shuttleworth announced that 18.04 would have support that is available for up to 10 years. "I'm delighted to announce that Ubuntu 18.04 will be supported for a full 10 years," Shuttleworth said. "In part because of the very long time horizons in some of industries like financial services and telecommunications but also from IOT where manufacturing lines for example are being deployed that will be in production for at least a decade ." Read more

Benchmarking Packet.com's Bare Metal Intel Xeon / AMD EPYC Cloud

With the tests earlier this week of the 16-way AMD EPYC cloud comparison the real standout of those tests across Amazon EC2, Packet, and SkySilk was Packet's bare metal cloud. For just $1.00 USD per hour it's possible to have bare metal access to an AMD EPYC 7401P 24-core / 48-thread server that offers incredible value compared to the other public cloud options for on-demand pricing. That led me to running some more benchmarks of Packet.com's other bare metal cloud options to see how the Intel Xeon and AMD EPYC options compare. Packet's on-demand server options for their "bare metal cloud" offerings range from an Intel Atom C2550 quad-core server with 8GB of RAM at just 7 cents per hour up to a dual Xeon Gold 6120 server with 28 cores at two dollars per hour with 384GB of RAM and 3.2TB of NVMe storage. There are also higher-end instances including NVIDIA GPUs but those are on a dynamic spot pricing basis. Read more