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February 2020

today's leftovers

Filed under
Misc
  • Destination Linux 162: Ikey Doherty Interview, Stuart Langridge Guest Host

    Topics covered in this episode:

    [...]
    Keeping Kids Safe Online

    [...]

    Interview:
    Ikey Doherty of Lispy Snake (formerly of Solus)

    Other Topics:
    GNOME 3.36 Preview
    ISP’s Claim Privacy Law Violates “Free Speech”

  • Daniel Stenberg: Expect: tweaks in curl

    One of the persistent myths about HTTP is that it is “a simple protocol”.

    [...]

    Background

    HTTP/1.1 is designed for being sent over TCP (and possibly also TLS) in a serial manner. Setting up a new connection is costly, both in terms of CPU but especially in time – requiring a number of round-trips. (I’ll detail further down how HTTP/2 fixes all these issues in a much better way.)

    HTTP/1.1 provides a number of ways to allow it to perform all its duties without having to shut down the connection. One such an example is the ability to tell a client early on that it needs to provide authentication credentials before the clients sends of a large payload. In order to maintain the TCP connection, a client can’t stop sending a HTTP payload prematurely! When the request body has started to get transmitted, the only way to stop it before the end of data is to cut off the connection and create a new one – wasting time and CPU…

    “We want a 100 to continue”

    A client can include a header in its outgoing request to ask the server to first acknowledge that everything is fine and that it can continue to send the “payload” – or it can return status codes that informs the client that there are other things it needs to fulfill in order to have the request succeed. Most such cases typically that involves authentication.

  • Environmental activist Shannon Dosemagen joins FSF conference keynote lineup

    Shannon Dosemagen is the second confirmed keynote speaker for the LibrePlanet conference. Dosemagen is the co-founder and current executive director of Public Lab, a nonprofit organization creating local environmental science solutions following the free software philosophy, and winner of the FSF's Award for Projects of Social Benefit. Shannon Dosemagen is an environmental health advocate and a community science champion, and is enthusiastic about free systems and technology that support the creation of a more just and equitable future. She is a previous Fellow at both the Harvard Berkman Klein Center for Internet and Society, and the Loyola University Environmental Communications Institute. During 2020, she will be a Fellow with the Shuttleworth Foundation, working on new concept.

    At LibrePlanet, Dosemagen will discuss her experience democratizing science to address environmental problem-solving. Her experiences and frustrations doing this work are very familiar to the free software community: "The work I do on the environment and health is being increasingly challenged by environmental deregulation and lack of cooperation. We're also seeing heightened pressure to drastically alter how society functions in an effort to curb the climate crisis. This is a profound moment, and critical to address at an event aptly themed 'Free the Future.'"

    "Shannon's work is very important, and is a testament to the success of community collaboration," says Zoë Kooyman, the FSF's program manager. "Public Lab's work towards free hardware solutions is a strong indicator of what the four freedoms can achieve, and how they can work towards a better future outside of software. Shannon is an experienced speaker and organizer, and we are proud to have her keynote at LibrePlanet."

  • GNU Health HMIS patchset 3.6.3 released with coronavirus COVID-19 coding information

    GNU Health 3.6.3 patchset has been released !

  • PCI Express 6.0 Reaches Version 0.5 Ahead Of Finalization Next Year

    Following the PCI Express 6.0 announcement from last summer that called for 64 GT/s transfer rates, version 0.5 of the PCIe 6.0 specification is now out for evaluation. 

    PCI Express 6.0 v0.5 is a "first draft" specification so that PCI-SIG members can review it and provide any feedback before delivering a complete draft in the months ahead and the v1.0 final draft in 2021. 

  • Mirantis Co-Founder Boris Renski Launches Enterprise LTE Network Startup

    There are no product details so far, but the plan is to leverage the newly opened CBRS spectrum to build 4G LTE wireless solutions and open-source most of the innovation.

Proprietary: Apple's 'Image' Obsession, TurboTax Scam, Nokia's Demise and Microsoft Being Microsoft

Filed under
Software
  • Apple Won't Allow Movie Villains to Use iPhones
  • TurboTax’s Bid to Buy Free Tax Prep Competitor Might Violate Antitrust Law, Experts Say

    TurboTax, the long-standing dominant player in the tax preparation software market, has recently faced a nascent threat to its lucrative business: A company that specializes in pitching its users financial products has entered the fray with a completely free tax prep service.

    This week, TurboTax’s parent company, Intuit, unveiled a solution to this problem: spending $7.1 billion to buy the rapidly growing upstart, Credit Karma, before it could become a major competitor.

  • Nokia to Weigh Strategic Options as Profit Pressure Mounts [Ed: Microsoft killed Nokia]

    The December announcement that Nokia Chairman Risto Siilasmaa would step down stirred speculation about deeper changes at the company. The firm is in a fierce rivalry with Ericsson and China’s Huawei Technologies Co., as the three dominant players seek to benefit from phone carriers’ investments in next-generation mobile networks.

  • 'Developers have lost hope Microsoft will do the right thing'... Redmond urged to make WinUI cross-platform

    Microsoft's roadmap for developing Windows applications is opposed by some programmers who want to see a cross-platform solution, rather than just being Windows-only.

    Spanish developer José Nieto this week raised an issue on GitHub, stating that WinUI, which Microsoft is positioning as “the native UI platform for Windows 10,” should target not only Windows, but also Linux, Mac, iOS, Android and WebAssembly – this last so it would also run in a web browser.

    This would go against the normal pattern, where a native UI platform is able to take advantage of all the features of the operating system, fits in seamlessly with its look and feel, and is optimized for performance. Supporting cross-platform is a burden that requires compromises.

openSUSE and LibreOffice: Citrix Workspace on openSUSE Tumbleweed, Open Build Service IP Changes, openSUSE + LibreOffice Conference and Navigator Improvements

  • Citrix Workspace on openSUSE Tumbleweed

    Some companies offer their employees to access their corporate computer work space remotely using a remote desktop connection. The company Citrix provides software for such a connection. To connect, the employees need the software Citrix Workspace on their terminal devices. The company provides on their download page also files for Linux including openSUSE. Unfortunately, their version 1912 from 12 December 2019 did not just work on my openSUSE Tumbleweed 64bit computer (and earlier versions I tried neither).

  • New IP addresses for build.opensuse.org

    People using this Open Build Service instance should normally not notice - but if you were crazy enough to add the old IP addresses to some firewall rules or configuration files, please make sure that you update your configuration accordingly.

  • Call for Papers, Registration Opens for openSUSE + LibreOffice Conference

    Planning for the openSUSE + LibreOffice Conference has begun and members of the open-source communities can now register for the conference. The Call for Papers is open and people can submit their talks until July 21.

  • Navigator imprevements by Jim Raykowski

    Jim Raikowski, one from LibreOffice's developers, has made many very nice Navigator improvements for Writer and Calc.

Debian: German Television, Freedb's Shutdown and Sparky News at Month's End

Filed under
Debian
  • Debian Edu on TV (NDR broadcast station, Germany)

    One of my Debian Edu customers has recently been on German television...

  • Freedb is closing its service

    Freedb, which is a free version of Cddb, and is used by the asunder cd-ripper (which I am the Debian maintainer of), is closing down it’s services March 31st.

  • Sparky news 2020/02

    The 2nd monthly report of 2020 of the Sparky project:

    • migration to a new, bigger vps done; make sure to install a new public key of Sparky repository -> https://sparkylinux.org/migration-to-a-new-vps/
    • Sparky 5.10.1 of the stable line released
    • Linux kernel updated up to version 5.5.7 & 5.6-rc3
    • added to our repos: Android Messages Desktop, MystiQ Video Converter
    • Nemomen keep translating Sparky Wiki pages to Hungarian, thanks a lot
    • Sparky 2020.02 and 2020.02.1 of the rolling line released
    • Sparky Special Editions 2020.02 GameOver, Multimedia & Rescue released

Mozilla: The Android Firefox Preview, Glean Spyware, and Firefox on Librem 5 (PureOS)

Filed under
Moz/FF
  • Firefox Preview for Android - Interesting

    After I've published my recent series of Firefox articles, mostly the review of versions 71 & 72, and the important essay on why you should be using it as your primary browser, I got a bunch of emails from readers suggesting I take Firefox Preview for a spin. This seems to be the next-gen edition of Firefox for Android, designed to be faster, lighter and more appealing, and hopefully endear a bunch of hearts to Mozilla's effort.

    While I'm not too keen on anything touch, I still want to be able to have a hassle-free, stupidity-free browsing experience anywhere, including the mobile, so I set about testing Firefox Preview. As the test device, I used my Motorola Moto G6 phone, which ought to be fairly representative of the kind of results we should be seeing. Let us begin, then.

  • William Lachance: This week in Glean (special guest post): mozregression telemetry (part 1)

    As I mentioned last time I talked about mozregression, I have been thinking about adding some telemetry to the system to better understand the usage of this tool, to justify some part of Mozilla spending some cycles maintaining and improving it (assuming my intuition that this tool is heavily used is confirmed).

    Coincidentally, the Telemetry client team has been working on a new library for measuring these types of things in a principled way called Glean, which even has python bindings! Using this has the potential in saving a lot of work: not only does Glean provide a framework for submitting data, our backend systems are automatically set up to process data submitted via into Glean into BigQuery tables, which can then easily be queried using tools like sql.telemetry.mozilla.org.

    I thought it might be useful to go through some of what I’ve been exploring, in case others at Mozilla are interested in instrumenting their pet internal tools or projects. If this effort is successful, I’ll distill these notes into a tutorial in the Glean documentation.

  • Desktop Firefox in Your Pocket with the Librem 5

    The first part tells Firefox to use the Wayland display stack instead of X11, which has fullscreen support with keyboard input. Finally --no-remote is a workaround to a Firefox bug. which has already been fixed and will find its way into Debian, as well as the PureOS and the Librem 5 soon.

Ubuntu Switches to a Snap’d Software Store for 20.04

Filed under
Ubuntu

The upcoming Ubuntu 20.04 release will ship with a Snap version of Ubuntu Software app by default.

But while Ubuntu’s default software management tool will become pre-seeded Snap app starting in 20.04 existing Snap builds of Calculator, Characters, and Logs will be reverted to their repo versions.

As noted on Ubuntu Discourse, the ubuntu-desktop and ubuntu-minimal meta-packages now pull in the Ubuntu Software Snap app in place of the regular apt/repo version.

To be clear: this is not a new app store. It is the same Ubuntu Software store as currently shipped, and is still based on GNOME Software. It just packaged as a Snap application.

Read more

Also: Ubuntu 20.04 Screenshots Tour

KDE: Plans for Qt 6, KDE Progress, and Setback for Qt Wayland

Filed under
KDE
  • KF6 Progress Report: February Edition

    It’s been two months since my previous KF6 progress report. Clearly an update is long overdue, it’s time to make it happen!

    An actual Qt 6 is not published yet and we didn’t branch for KF6 yet either. Still as can be seen on the KF6 Workboard there are plenty of tasks in our backlog which can be acted upon now. No need to wait to participate, all the work done now will make the transition to KF6 easier later on anyway.

  • This month in KDE Web: January-February 2020

    This is the first post in a monthly series about improvements to the KDE websites. I plan to publish it every last Saturday of the month. Since a lot happened in January and I didn’t mention it anywhere, I will also mention those things in this post.

  • January and February in KDE PIM

    Following the post about what happened in KDE PIM in November and December by Volker, let’s look into what the KDE PIM community has been up to in the first two months of the new year. In total 23 contributors have made 740 changes.

  • Qt Wayland's Maintainer Is Leaving The Company

    While the Qt5 tool-kit on Wayland is in fairly good shape in recent times, the Qt Wayland module that provides the Wayland platform abstraction and helpers for assembly Qt-based Wayland compositors could run the risk of regressing.

    The future of QtWayland was brought up on the Qt mailing list this week with QtWayland developer Johan Helsing leaving The Qt Company. The hope is there will be no reduced work on Qt Wayland support especially with several companies relying upon it as well as the community, but it was Johan that carried out much of the heavy lifting for this toolkit on Wayland.

DXVK 1.5.5 Released

Filed under
Graphics/Benchmarks
Gaming
  • DXVK 1.5.5 Released With Many Game Fixes

    DXVK 1.5.5 is out this weekend as a big update to this Direct3D-over-Vulkan translation layer widely used by Linux gamers in running Windows games with decent speed.

    DXVK 1.5.5 is a big update contrary to its version number in bringing many game-specific improvements and other fixes. There is also expanded Direct3D support.

  • Direct3D to Vulkan translation layer 'DXVK' version 1.5.5 is out with lots of bug fixes

    Developer Philip Rebohle today announced the release of DXVK 1.5.5, bringing with it plenty of bug fixes for this impressive Direct3D to Vulkan translation layer.

    On the games side, quite a number had specific issues addressed with this release. You should find less issues running: Book of Demons, Close Combat, Cross Racing Championship, Dungeons and Dragons: Temple of Elemental Evil, Elite Dangerous, Evil Genius, F1 2019, Hyperdimension Neptunia U Action Unleashed, Just Cause 1, Lumino City, Saint's Row III / IV, Shade Wrath of Angels, Sins of a Solar Empire, Rocket League and Vampire: The Masquerade Bloodlines which should see improved performance.

    Another tweak was done for Skyrim, this time fixing both crashes and incorrect rendering with the "d3d9.evictManagedOnUnlock" option, they say this is "useful for Skyrim with a large number of mods as an alternative to ENBoost".

More in Tux Machines

FSF Chasing Members and GNU Project Has a Dozen New Releases This Month

  • Don’t miss your chance to win fabulous prizes: Get your friends to join the FSF!

    As you may already know, every associate member is incredibly valuable to the Free Software Foundation (FSF). Since most of our funding comes from individual donations and memberships, associate members aren’t just a number. Each new membership magnifies our reach and our ability to effect social change, by demonstrating your commitment to the crucial cause of software freedom. Right now, FSF associate members have the opportunity to reap some fantastic rewards by participating in our virtual LibrePlanet membership drive. We still have the raffle prizes generously donated by Technoethical, Vikings, JMP.chat, and ThinkPenguin for this year’s LibrePlanet conference, which we held entirely online this year due to the COVID-19 pandemic. Now, we’re giving them away to those who go the extra mile to help us grow by referring new annual associate members to sign up!

  • May GNU Spotlight with Mike Gerwitz: 12 new releases!

    bison-3.6.2 denemo-2.4.0 emms-5.4 freeipmi-1.6.5 gcc-10.1.0 gdb-9.2 gnuastro-0.12 gnuhealth-3.6.4 mediagoblin-0.10.0 nano-4.9.3 nettle-3.6 parallel-20200522

Programming: SDL, QML, Python, Awk/Bash and More

  • Photoframe Hack

    Sometimes you just want to get something done. Something for yourself. You do not intend it to be reused, or even pretty. You build a tool. My tool was a photoframe with some basic overlays. I wanted the family calendar, some weather information (current temperature + forecast), time, and the next bus heading for the train station. [...] I also have a bunch of REST calls to my local home assistant server. Most of these reside in the HassButton class, but I also get the current temperature from there. These are hardcoded for my local network, so needs refactoring to be used outside of my LAN. All of these interfaces require API keys of one kind or another – be it a proper key, or a secret URL. These are pulled from environment variables in main.cpp and then exposed to QML. That way, you can reuse the components without having to share your secrets.

  • Writing the Ultimate Locking Check

    In theory a clever programmer could discover all the bugs in a piece of software just by examining it carefully, but in reality humans can't keep track of everything and they get distracted easily. A computer could use the same logic and find the bugs through static analysis. There are two main limitations for static analysis. The first is that it is hard to know the difference between a bug and feature. Here we're going to specify that holding a lock for certain returns is a bug. This rule is generally is true but occasionally the kernel programmers hold a lock deliberately. The second limitation is that to understand the code, sometimes you need to understand how the variables are related to each other. It's difficult to know in advance which variables are related and it's impossible to track all the relationships without running out of memory. This will become more clear later. Nevertheless, static analysis can find many bugs so it is a useful tool. Many static analysis tools have a check for locking bugs. Smatch has had one since 2002 but it wasn't exceptional. My first ten patches in the Linux kernel git history fixed locking bugs and I have written hundreds of these fixes in the years since. When Smatch gained the ability to do cross function analysis in 2010, I knew that I had to re-write the locking check to take advantage of the new cross function analysis feature. When you combine cross function analysis with top of the line flow analysis available and in depth knowledge of kernel locks then the result is the Ultimate Locking Check! Unfortunately, I have a tendency towards procrastination and it took me a decade to get around to it, but it is done now. This blog will step through how the locking analysis works.

  • Raising the ground

    To read this blog I recommend you to be familiar with C programming language and (not mandatory) basics about SDL2. The main goal of this blog is not to give you a copy and paste code, instead it will guide you along the way until you get results by your own merit, also if you find any issues/mistakes/room for improvement please leave a response, thanks for reading.

  • PyCoder’s Weekly: Issue #422 (May 26, 2020)
  • Real Python: A Beginner's Guide to Pip

    What is pip? pip is the standard package manager for Python. It allows you to install and manage additional packages that are not part of the Python standard library. This course is an introduction to pip for new Pythonistas.

  • Awk Cheatsheet And Examples

    Awk is a great utility for text parsing and maniupulation. All unix operating systems have Awk installed by default. If you are on Windows. Please check out at the bottom of this tutorial on how to install and enable awk on Windows.

  • Printing repeats within repeats, and splitting a list into columns

    Repeats within repeats. BASH printf is a complex piece of machinery. The man page says a printf command should look like printf FORMAT [ARGUMENT]..., which makes it seem the "argument" is the thing to be printed and the "format" describes how.

Devices/Embedded With Linux

  • Gemini Lake industrial mini-PCs are loaded with USB and COM ports

    GigaIPC latest QBiX Series industrial mini-PCs run Linux or Windows on Intel Gemini Lake and offer up to 8x USB and 5x COM ports plus dual displays, GbE, SATA III, M.2, and ruggedization features. Taiwanese computer vendor Gigabyte primarily produces consumer and enterprise desktop PC and server equipment, so we were surprised in 2017 when it launched an embedded 3.5-inch, Intel Apollo Lake GA-SBCAP3350 SBC. The following year in 2018, Gigabyte spun off GigaIPC as an embedded unit, and it has already generated a large catalog of Intel-based products including Micro-ATX, Mini-ITX, thin Mini-ITX, and 110 x 105mm “10×10” boards. There are 15 different 3.5-inch “QBi Pro” boards much like the GA-SBCAP3350, but also available with Whiskey Lake and Kaby Lake-U processors.

  • 19″ Rackmounts Support up to 12 Raspberry Pi SBCs

    Last time, we wrote about myelectronics.nl we covered their Tesla Cybertruck Case for Intel NUCs which housed the mini PC into a mini CyberTruck looking enclosure. The company has now come up with new housing solutions specifically designed for Raspberry Pi 1/2/3/4 Model B/B+ boards.

  • PoE-ready Ryzen V1000 SBC is all about camera control

    Axiomtek’s “MIRU130” SBC targets embedded vision applications with a Ryzen V1000 SoC, 4x USB 3.1 Gen2, HDMI and DP ports, cam triggers and lighting controls, 2x M.2, PCIe x16, and 4x GbE ports, 2x of which offer PoE. Axiomtek recently launched a CAPA13R, joineing Seco’s similarly 3.5-inch SBC-C90 as the only SBCs we have seen based on AMD’s Ryzen Embedded V100. Now Axiomtek has returned with a larger, V1000-based MIRU130 motherboard with a 244 x 170mm form factor that falls in between Mini-ITX and Micro-ATX.

  • IAR Systems Delivers Efficient Embedded Software Building on Linux

    Through the C/C++ compiler and debugger toolchain IAR Embedded Workbench®, IAR Systems provides its customers with the market's most diverse microcontroller support as well as adapted licensing options to fit different organizations' needs. This flexibility is now extended to the build environment as the well-known build tools in IAR Embedded Workbench now support Linux. The tools offer leading code quality, outstanding optimizations for size and speed, and fast build times. Supporting implementation in Linux-based frameworks for automated application build and test processes, the tools enable large-scale deployments of critical software building and testing and is suitable for installations ranging from a few licenses on a small build server, to massive installations with several hundreds of parallel builds active at the same time.

  • Librem 5 April 2020 Software Development Update

    This is another incarnation of the software development progress for the Librem 5. This time for April 2020 (weeks 14-18). Some items are covered in more detail in separate blog posts at https://puri.sm/news. The idea of this summaries is so you can have a closer look at the coding and design side of things. It also shows how much we’re standing on the shoulders of giants reusing existing software and how contributions are flowing back and forth. So these reports are usually rather link heavy pointing to individual merge requests on https://source.puri.sm/ or to the upstream side (like e.g. GNOME’s gitlab.)

Games: Burning Knight, Elder Scrolls, Cities: Skylines and PyGame

  • Burning Knight is a roguelike where you rob a dungeon, coming soon

    At least the setting is honest, you're totally robbing the dungeons in Burning Knight and then attempting to flee. Burning Knight is an action-packed procedurally generated roguelike, with fast-paced action and plenty of exploration across various floors in the Burning Knight's castle that you're stealing goods from. It can turn into a bullet-hell in some rooms, there's hundreds of items to find and they can be combined to "build your very own game-breaking combos" and it does sound awesome. The developer, Rexcellent Games, just announced on Twitter yesterday that it's now actually complete. They're waiting on Valve's approval, and it looks like it will hopefully release next month. SteamDB captured the date changing to June 5 but that might be a temporary date.

  • Stadia gets Elder Scrolls Online on June 16, 1440p in web and more

    A few bits of Stadia news for you as Google have announced the next set of additions coming to their game streaming service. For players who were a bit let down by resolution options, there's some good news. As some players already saw across the last few weeks and today being made properly official, 1440p is now an option when playing Stadia in a web browser.

  • Humble Cities: Skylines Bundle is up for some easy city building

    Cities: Skylines, one of the finest city builders ever is now available in a big Humble Bundle for you to grab the base game and lots of extra content. This is honestly a ridiculously good deal and probably the cheapest Cities: Skylines has ever been. For £1 you can get Cities: Skylines and the Deep Focus Radio DLC. Even if you only go for that, there's a lot to enjoy without any expansions.

  • Python Qt5 - PyQt5 and PyGame compatibility with source code.

    This tutorial tries to solve from the objectives related to solving and stabilizing compatibility errors between PyQt4 and PyQt5 and creating a common interface between PyQt5 and PyGame. There is always the same problem in programming when the developer for some reason has to change classes, methods and functions and reusing the old code is no longer valid. In this case, common or other errors occur, which leads to a waste of time.