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Videos/Audiocasts/Shows: GNU/Linux and Python, Fresh Look at LMDE 4 Beta

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  • Hopeful for HAMR | TechSNAP 423

    We explore the potential of heat-assisted magnetic recording and get excited about a possibly persistent L2ARC.

    Plus Jim's journeys with Clear Linux, and why Ubuntu 18.04.4 is a maintenance release worth talking about.

  • 2020-02-21 | Linux Headlines

    Red Hat OpenStack Platform reaches version 16, Google announces the mentors for this year’s Summer of Code, DigitalOcean secures new funding, the Raspberry Pi 4’s USB-C power problems get a fix, and the GTK Project unveils its new website.

  • Talk Python to Me: #252 What scientific computing can learn from CS

    Did you come into Python from a computational science side of things? Were you just looking for something better than Excel or Matlab and got pulled in by all the Python has to offer? 

    That's great! But following that path often means some of the more formal practices from software development weren't part of the journey. 

    On this episode, you'll meet Martin Héroux, who does data science in the context of academic research. He's here to share his best practices and lessons for data scientists of all sorts.

  • Matt Layman: Templates and Logic - Building SaaS #45

    In this episode, we added content to a template and talked about the N+1 query bug. I also worked tricky logic involving date handling.

    The first change was to update a course page to include a new icon for any course task that should be graded. After adding this, we hit an N+1 query bug, which is a performance bug that happens when code queries a database in a loop. We talked about why this happens and how to fix it.

    After finishing that issue, we switched gears and worked on a tricky logic bug. I need a daily view to fetch data and factor in the relative time shift between the selected day and today. We wrote an involved test to simulate the right conditions and then fixed the code to handle the date shift properly.

  • LMDE 4 Beta Debbie Run Through

    In this video, we are looking at LMDE (Linux Mint Debian Edition) 4 Debbie.

More in Tux Machines

Qt 5.12.8 Released

I am happy to inform you we have released Ot 5.12.8 today. As earlier informed Qt 5.12 LTS is in 'strict' phase and so on it will receive only the most important bug fixes. But still this 8th patch release to Qt 5.12 LTS contains ~150 changes including fixes to more than 30 bugs. Please check most important changes from Qt 5.12.8 Changes Files. Qt 5.12.8 can be updated to existing online installation by using maintenance tool. For new installations, please download latest online installer from Qt Account portal or from qt.io Download page. Offline packages are available for commercial users in the Qt Account portal and at the qt.io Download page for open-source users. You can also try out the Commercial evaluation option from the qt.io Download page. Read more Also: The Qt Company Publishes A 2020 Roadmap Culminating With The Qt 6.0 Release

Android Leftovers

DragonBoard 845c Android (AOSP) Reference Board Supports Open Source Graphics, Mainline Kernel

Besides the obvious Google Pixel and Nexus devices supported by AOSP (Android Open Source Project), we previously covered some single board computers that were also officially supported by the project with Hikey and Hikey 960 Android reference boards. Linaro Consumer Group (LCG) has just written about Qualcomm Snapdragon 845 based Dragonboard 845c board. It has been now an official Android reference board for a few months now, and it is the first such board with an open-source graphics stack thanks to Freedreno graphics driver and mesa framework. Since no proprietary blobs are required, the board’s full functionality can also be upstreamed into the mainline kernel, and Linaro currently uses the board as a test target for validating the mainline kernel and stable updates. Read more

Raspberry Pi 4: Chronicling the Desktop Experience – Educational Games for Kids – Week 24

This is a weekly blog about the Raspberry Pi 4 (“RPI4”), the latest product in the popular Raspberry Pi range of computers. With so many young children currently unable to follow their usual routine of going to school, playing with friends, and undertaking many hobbies, it’s vital to keep them happy and learning. There are many ways of advancing a child’s education and well-being including online lessons, video calls with family and friends, combined with parental guidance. Read more