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KDE Frameworks 5.62.0 and Reports From Akademy 2019 in Milan

Filed under
KDE
  • KDE Frameworks 5.62.0

    KDE Frameworks are over 70 addon libraries to Qt which provide a wide variety of commonly needed functionality in mature, peer reviewed and well tested libraries with friendly licensing terms. For an introduction see the KDE Frameworks web page.

    This release is part of a series of planned monthly releases making improvements available to developers in a quick and predictable manner.

  • KDE Frameworks 5.62 Released With KWayland Additions & Other Improvements

    KDE Frameworks 5.62 is out today as the latest monthly update to this collection of KDE libraries complementing the Qt5 tool-kit offerings.

  • Back from Akademy 2019 in Milan

    The last week I was in Milan with my wife Aiswarya to attend Akademy 2019, the yearly event of the KDE community. Once again it was a great experience, with lots of interesting conferences and productive BoF sessions (“Birds of a Feather”, a common name for a project meeting during a conference).

    On Sunday, we presented our talk “GCompris in Kerala, part 2”. First, Aiswarya told some bits of Free-Software history in Kerala, gave examples of how GCompris is used there, and explained her work to localize the new version of GCompris in Malayalam (the language of this Indian state). Then I made a quick report of what happened in GCompris the last 2 years, and talked about the things to come for our next release.

  • Akademy was a blast!

    I attended my first ever Akademy! The event was held at the University of Milano-Bicocca in Milan, Italy this year. And the experience was splendid. During the 2 day conference, I had the opportunity to talk at the Student Showcase, where all of the SoC students presented their work to the community. There were about 8 students, and everyone gave a good briefing on their project.

    My project this summer was with Kdenlive, the open source non linear professional video editor. I proposed to revamp one of the frequently used tools in the editor, called the Titler tool, which is used to create title clips. Title clips are video clips that contain text and/or images that are composited or appended to your video (eg: subtitles). The problem with the titler tool as it is, is that it uses QGraphicsView to describe a title clip and QGraphicsView was deprecated since the release of Qt5. This obviously leads to problems - upstream bugs crawling affecting the functionality of the tool and an overall degradation in the ease of maintenance of the codebase. Moreover, adding new features to the existing code base was no easy task and therefore, a complete revamp was something in sights of the developer community in Kdenlive for a long time now. I proposed to rework on the backend for the period of GSoC replacing the use of XML with QML and use a new rendering backend with QQuickRenderControl, along with a new MLT module to handle the QML frames. I was able to cover most of the proposed work, I seek to continue working on it and finish evolving the titler tool.

Events: Akademy and LibOCon

Filed under
KDE
LibO
  • Akademy Report

    “Who are you people?”

    That’s what the woman selling the ferry tickets at Varenna asked me once she realized I speaked Italian. She was definitely not used to a group of ~80 people wearing a blue badge. Another woman who was selling stuff on the street asked me if we were a school.

    It’s been an amazing week and a very productive Akademy. A lot has been discussed and a lot has been decided. On my side, I’ve hosted a Dolphin BoF where we discussed both boring things (e.g. where to send bugzilla notification mails) as well as the awesome new features we are getting into Dolphin. Alexander talked about the status of the KIO Fuse project, while Méven talked about his work on the kioslave for the recently used files.

  • Akademy 2019 Wednesday and Thursday BoF Wrapup

    Wednesday continued the Akademy BoFs, group sessions and hacking in the morning followed by the daytrip in the afternoon to Lake Como, to have some fun, get away from laptops and get to know each other better. Thursday was back to BoFs, meetings and hacking culminating in a wrapup session at the end covering the last two days so that what happened in the different rooms can be shared with everyone including those not present.

  • LibOCon 2019 Almeria - How to debug the Online conveniently

Squish - Test automation tool for our HMI build with Qt

Filed under
KDE

When test engineers hear about test automation the first word that comes to mind is of course Selenium which is the most popular testing library that helps us writing scripts for web applications. There are also ready solutions for mobile apps like Appium, Robotium, Espresso, UI Automator and others. The challenge is when we have some project-specific technologies that are not as easy to automate as web applications. But while using Qt we have some advantage over other non-web applications because there is some ready solution that we can use.

The goal of the project was to build a digital cockpit system for car sharing solutions with navigation as the main feature, where the user agrees on advertisements while choosing a cheaper subscription. Advertising can suggest purchasing coffee to the driver, which can be ordered through our application from the navigation screen, then we add a coffee stop to the destination point. We also included the HVAC module and menu where the driver can switch between different screens (music player, settings, 3D model of a car, phone, weather view). To build this we were using Qt Application Manager, QML, MapBox, Qt 3D Studio and server written in python that was using OSRM.

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KDE/GNOME: Kubuntu, GUADEC, Gdk-pixbuf

Filed under
KDE
GNOME
  • Kubuntu Meets at Milan Akademy 2019

    We also discussed snaps and when Ubuntu possibly moves to “all snaps all the time” for applications at least. This may be in our future, so it is worth thinking and discussing.

    Tobias Fischbach came by the BOF and told us about Limux which is based on Kubuntu. This has been the official computer distribution of Munich for the past few years. Now however, unless the Mayor changes (or changes his mind) the city is moving to Windows again, which will be unfortunate for the City.

    Slightly off-topic but relevent is that KDE neon will be moving to 20.04 base soon after release, but they will not stay on the Plasma LTS or Qt LTS. So users who want the very latest in KDE Plasma and applications will continue to have the option of using Neon, while our users, who expect more testing and stability can choose between the LTS for the ultimate in stability and our interim releases for newer Plasma and applications.

  • GUADEC 2019 wrap-up

    This year is the third edition of the GUADEC. Things were slightly different now: I was not a GSoC student anymore and I had my first jet lag. Three flights, some trains (including a type of train which rails were suspended in the air) were enough to go to Thessaloniki lands. When I arrived to Greece, I was a bit scared of the language since the alphabet would be almost impossible to type in my smartphone. However, I could easily reach the accomodation point.

    My purpose for this GUADEC was different than the past ones. In the past I went basically to talk about my Google Summer of Code projects, but this time I wanted to show to the attendees the project I was working on as part of my dissertation project. I wanted to re-write almost everything of what I did and in the best case my plan was to find a contributor to my project. I am very happy to say that I found one contributor to this project. The project I talk about consisted on adding face overlay effects to Cheese developing a GStreamer plugins which elements should be better than gstfaceoverlay and gstfacedetect. The code of the project I made for my dissertation project can be found on this link and the one that is being written from scratch can be found on this repository. The slides are available on Google Docs and the full details (actually the thesis document) is written (in Spanish) in this document.

    [...]

    After GUADEC I had some vacations in Greece for about one week more and then I was going to Poznan, Poland. As I mentioned, the first day of the event I met Mieszko Mazurek who actually lives in that city. He was showing me the city and his office in which he works were he develops low-level and high-level software to control batteries. He uses GNOME-based technology for this high-level software. I also continued to show him and explaining him about the Cheese Face Effects project. Finally, that day I could get the code I wrote during the event with the help of him to work as expected. Now I am on Krakow, and he is going to do an inter-city trip to continue talking about the mentioned project.

  • Gdk-pixbuf modules - call for help

    I've been doing a little refactoring of gdk-pixbuf's crufty code, to see if the gripes from my braindump can be solved. For things where it is not obvious how to proceed, I've started taking more detailed notes in a gdk-pixbuf survey.

    Today I was looking at which gdk-pixbuf modules are implemented by third parties, that is, which external projects provide their own image codecs pluggable into gdk-pixbuf.

    And there are not that many!

    The only four that I found are libheif, libopenraw, libwmf, librsvg (this last one, of course).

    Update 2019/Sep/12 - Added apng, exif-raw, psd, pvr, vtf, webp, xcf.

GNOME and KDE Leftovers

Filed under
KDE
GNOME
  • GNOME Shell Picks Up Performance Improvements For Extensions

    While days too late for squeezing into GNOME 3.34.0, the GNOME Shell has landed a one year old merge request providing various fixes and performance improvements to its extension system.

    This MR was finally honored providing performance improvements around extensions, particularly those with a longer setup/start-up process.

  • Kate got submitted to the Windows Store

    Since a few years Kate is working well on Windows. You can grab fresh installers since then from our download page.

    But the visibility of it was very low for Windows users.

  • FOSS painting program Krita now has the Linux version on Steam

    Okay, not exactly gaming news but good to see anyway. Krita, the high quality FOSS painting program now has a Linux version available on Steam.

    They made a bit of a splash about releasing the Linux version on Steam too, in their announcement they mentioned how they're proud of it being "free, open source and community-driven software" with the Steam release meant as another direct way to support the development since it requires a purchase.

KDE Plasma 5.18 Desktop Environment Will Be Next LTS Series, Lands February 2020

Filed under
KDE

The current LTS (Long Term Support) series of the KDE Plasma desktop environment is KDE Plasma 5.12 LTS, which recently got its last scheduled maintenance update, KDE Plasma 5.12.9, which means that it actually reached end of life and will no longer receive point release except only if critical security issues or bugs need to be addressed.

Therefore, the KDE Project talked with various GNU/Linux distribution vendors about which next LTS series of the KDE Plasma desktop environment will suit them, and two of the biggest distros requested that the next long-term supported KDE Plasma series will be KDE Plasma 5.18, which was slated for release early next year.

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Plasma 5.12.9

Filed under
KDE

Today KDE releases a Bugfix update to KDE Plasma 5, versioned 5.12.9. Plasma 5.12 was released in February 2018 with many feature refinements and new modules to complete the desktop experience.

This release adds six months' worth of new translations and fixes from KDE's contributors. The bugfixes are typically small but important and include...

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Also: KDE Plasma 5.12.9 LTS Desktop Environment Released with More Than 20 Bug Fixes

KaOS 2019.09

Filed under
GNU
KDE
Linux

KaOS is pleased to announce the availability of the September release of a new stable ISO.

As always with this rolling distribution, you will find the very latest packages for the Plasma Desktop, this includes Frameworks 5.61.0, Plasma 5.16.5 and KDE Applications 19.08.1. All built on Qt 5.13.1.

With almost 60 % percent of the packages updated since the last ISO and the last release being over two months old, a new ISO is more than due. News for KDE Applications 19.08 included Dolphin’s information panel has been improved in several ways. You can, for example, choose to auto-play media files when you highlight them in the main panel, and you can now select and copy the text displayed in the panel, Okular’s support for EPub documents has also received a push in this version, Konsole had a boost to the tiling feature and Spectacle comes with several new features that regulate its Delay functionality.

For the installer Calamares, two major CVE’s were addressed among the many changes for 3.2.13. CVE-2019-13178 and CVE-2019-13179

Since LibreOffice 6.2, it is now possible to supply this as a pure Qt5/kf5 application. LibreOffice has thus replaced Calligra as the default Office Application for KaOS.

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Qt 5.12.5 Released

Filed under
KDE

I am happy to Announce we have released Qt 5.12.5 today.

This fifth patch release to Qt 5.12 LTS contains almost 280 bug fixes. Please check most important changes from Qt 5.12.5 Changes Files.

If you are still using older Qt versions, I strongly encourage all active projects to migrate to Qt 5.12 LTS if possible. After the Qt 5.12.5 release was branched, the Qt 5.12 LTS has entered in 'strict' phase, so from now on it will receive only the selected important bug and security fixes. New patch releases to Qt 5.12 LTS will be released regularly in the future as well but with fewer changes than before.

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News from KDE PIM in July/August 2019

Filed under
Development
KDE

Following Volker's last blog on this topic, here are some highlights of the recent work that has been done around Kontact / PIM during this summer. First of all, stats: there were around 1200 commits in the past two months, leading to the new 19.08 release.

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More in Tux Machines

Linux Kernel and Linux Foundation Leftovers

  • Improve memset
    
    since the merge window is closing in and y'all are on a conference, I
    thought I should take another stab at it. It being something which Ingo,
    Linus and Peter have suggested in the past at least once.
    
  • An Improved Linux MEMSET Is Being Tackled For Possibly Better Performance

    Borislav Petkov has taken to improve the Linux kernel's memset function with it being an area previously criticzed by Linus Torvalds and other prominent developers. Petkov this week published his initial patch for better optimizing the memset function that is used for filling memory with a constant byte.

  • Kernel Address Space Isolation Still Baking To Limit Data Leaks From Foreshadow & Co

    In addition to the work being led by DigitalOcean on core scheduling to make Hyper Threading safer in light of security vulnerabilities, IBM and Oracle engineers continue working on Kernel Address Space Isolation to help prevent data leaks during attacks. Complementing the "Core Scheduling" work, Kernel Address Space Isolation was also talked about at this week's Linux Plumbers Conference in Lisbon, Portugal. The address space isolation work for the kernel was RFC'ed a few months ago as a feature to prevent leaking sensitive data during attacks like L1 Terminal Fault and MDS. The focus on this Kernel ASI is for pairing with hypervisors like KVM as well as being a generic address space isolation framework.

  • The Linux Kernel Is Preparing To Enable 5-Level Paging By Default

    While Intel CPUs aren't shipping with 5-level paging support, they are expected to be soon and distribution kernels are preparing to enable the kernel's functionality for this feature to extend the addressable memory supported. With that, the mainline kernel is also looking at flipping on 5-level paging by default for its default kernel configuration. Intel's Linux developers have been working for several years on the 5-level paging support for increasing the virtual/physical address space for supporting large servers with vast amounts of RAM. The 5-level paging increases the virtual address space from 256 TiB to 128 PiB and the physical address space from 64 TiB to 4 PiB. Intel's 5-level paging works by extending the size of virtual addresses to 57 bits from 48 bits.

  • Interview with the Cloud Foundry Foundation CTO

    In this interview, Chip Childers, the CTO of the Cloud Foundry Foundation talks about some hot topics.

  • Research Shows Open Source Program Offices Improve Software Practices

    Using open source software is commonplace, with only a minority of companies preferring a proprietary-first software policy. Proponents of free and open source software (FOSS) have moved to the next phases of open source adoption, widening FOSS usage within the enterprise as well as gaining the “digital transformation” benefits associated with open source and cloud native best practices. Companies, as well as FOSS advocates, are determining the best ways to promote these business goals, while at the same time keeping alive the spirit and ethos of the non-commercial communities that have embodied the open source movement for years.

  • Linux Foundation Survey Proves Open-Source Offices Work Better

Releasing Slax 9.11.0

New school year has started again and next version of Slax is here too :) this time it is 9.11.0. This release includes all bug fixes and security updates from Debian 9.11 (code name Jessie), and adds a boot parameter to disable console blanking (console blanking is disabled by default). You can get the newest version at the project's home page, there are options to purchase Slax on DVD or USB device, as well as links for free download. Surprisingly for me we skipped 9.10, I am not sure why :) I also experimented with the newly released series of Debian 10 (code name Buster) and noticed several differences which need addressing, so Slax based on Debian 10 is in progress, but not ready yet. Considering my current workload and other circumstances, it will take some more time to get it ready, few weeks at least. Read more Also: Slax 9.11 Released While Re-Base To Debian 10 Is In Development

today's howtos

KDE Frameworks 5.62.0 and Reports From Akademy 2019 in Milan

  • KDE Frameworks 5.62.0

    KDE Frameworks are over 70 addon libraries to Qt which provide a wide variety of commonly needed functionality in mature, peer reviewed and well tested libraries with friendly licensing terms. For an introduction see the KDE Frameworks web page. This release is part of a series of planned monthly releases making improvements available to developers in a quick and predictable manner.

  • KDE Frameworks 5.62 Released With KWayland Additions & Other Improvements

    KDE Frameworks 5.62 is out today as the latest monthly update to this collection of KDE libraries complementing the Qt5 tool-kit offerings.

  • Back from Akademy 2019 in Milan

    The last week I was in Milan with my wife Aiswarya to attend Akademy 2019, the yearly event of the KDE community. Once again it was a great experience, with lots of interesting conferences and productive BoF sessions (“Birds of a Feather”, a common name for a project meeting during a conference). On Sunday, we presented our talk “GCompris in Kerala, part 2”. First, Aiswarya told some bits of Free-Software history in Kerala, gave examples of how GCompris is used there, and explained her work to localize the new version of GCompris in Malayalam (the language of this Indian state). Then I made a quick report of what happened in GCompris the last 2 years, and talked about the things to come for our next release.

  • Akademy was a blast!

    I attended my first ever Akademy! The event was held at the University of Milano-Bicocca in Milan, Italy this year. And the experience was splendid. During the 2 day conference, I had the opportunity to talk at the Student Showcase, where all of the SoC students presented their work to the community. There were about 8 students, and everyone gave a good briefing on their project. My project this summer was with Kdenlive, the open source non linear professional video editor. I proposed to revamp one of the frequently used tools in the editor, called the Titler tool, which is used to create title clips. Title clips are video clips that contain text and/or images that are composited or appended to your video (eg: subtitles). The problem with the titler tool as it is, is that it uses QGraphicsView to describe a title clip and QGraphicsView was deprecated since the release of Qt5. This obviously leads to problems - upstream bugs crawling affecting the functionality of the tool and an overall degradation in the ease of maintenance of the codebase. Moreover, adding new features to the existing code base was no easy task and therefore, a complete revamp was something in sights of the developer community in Kdenlive for a long time now. I proposed to rework on the backend for the period of GSoC replacing the use of XML with QML and use a new rendering backend with QQuickRenderControl, along with a new MLT module to handle the QML frames. I was able to cover most of the proposed work, I seek to continue working on it and finish evolving the titler tool.