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GNOME and KDE: GNOME Shell and Mutter, Qt, Plasma Mobile and Okular for Debian

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KDE
Software
GNOME
  • GNOME Shell + Mutter See Changes For Tracking Software Rendering, VNC To Toggle Animations

    GNOME Shell and Mutter saw a set of patches land today for GNOME 3.36 that have been around for a few months and deal with the tracking of software rendering and VNC usage where GNOME Shell should in turn disable animations to ease the rendering workload.

    The GNOME Settings Daemon has until now been responsible for controlling the animation heuristics when they should be disabled while now Mutter has added support for tracking software rendering situations and in turn GNOME Shell is relying upon that for determining when to disable desktop animations.

  • How not to lose the alpha channel

    Working on color imagery for QiTissue recently, I realized we were accidentally losing the alpha channel in multiple places. For efficiency reasons, we keep colors in memory using the QRgb type, and convert that to/from QString for serialization purposes via QColor as needed. Here’s what I discovered about why that doesn’t work, and some ways I fixed it.

    Firstly, be aware there is no QRgba in the Qt API . There is only QRgb, for 8bit color channels. It can hold an alpha value too, despite the lack of a trailing a in the type name. Then there is QRgba64 which uses 16bit per color channel. For our purposes, 8bit per channel is sufficient. So where do we lose the alpha channel, when QRgb can store it in principle?

  • Fosdem and Plasma Mobile Sprint

    From January 31st to February 8th I went on a little tour, first at the two days of Fosdem in Brussels, then to Berlin for a KDE sprint about Plasma Mobile.

    It was the first time i went to Fodem: it’s an awesome experience, even tough big and messy: which is the awesome of it… and the bad of it at the same time

    Even tough there were 800 talks I didn’t attend that many, some about the Elixir language, some about retrocomputing, some about iot stuff. At Fosdem the best thing to do there.. is meeting a lot of interesting people, rather than attending talks, which are very interesting never the less, which you can find videos here.

  • Norbert Preining: Okular update for Debian

    The quest for a good tabbed pdf viewer lead me okular. While Gnome3 has gone they way of “keep it stupid keep it simple” to appeal to less versed users, KDE has gone the opposite direction and provides lots of bells and knobs to configure their application. Not surprisingly, I am tending more and more to KDE apps away from the redux stuff of Gnome apps.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.