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GNOME Desktop/GTK: Gnome Shell Extension for Chromecast, GTK Hackfest in Brussels, GTK+ Renamed to GTK and New in GNOME Photos

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GNOME
  • Stream Videos, Music And Pictures From Gnome To Chromecast With Cast To TV Extension (v6 And v7 Released)

    If you own a Chromecast device and you're using Gnome Shell, you should give Cast to TV a try. This Gnome Shell extension adds a new entry in the system menu which allows casting local files to Chromecast or other devices over the local network.

  • Report from the GTK hackfest in Brussels

    Thanks to the GNOME Foundation, various GTK developers were able to meet in Brussels right after FOSDEM, for one of our yearly hackfests.

  • GTK+ No More - It's Just GTK As Developers Prepare For This Year's GTK 4.0

    Beyond the FOSDEM conference itself this past week in Brussels, GNOME developers also used the occasion once again for hosting a developer "hackfest" as they prepare for the home stretch in GTK 4.0 development.

    First up, the developers did decide this week to do away with "GTK+" with the project formally just going by "GTK" now... The "plus" is no more. "The "plus" was added to "GTK" once it was moved out of the GIMP sources tree and the project gained utilities like GLib and the GTK type system, in order to distinguish it from the previous, in-tree version. Very few people are aware of this history, and it's kind of confusing from the perspective of both newcomers and even expert users; people join the wrong IRC channel, the URLs on wikis are fairly ugly, etc."

  • GTK+ renamed to GTK

    The GTK+ toolkit project has, after extensive deliberation, decided to remove the "+" from its name.

  • GNOME Photos: an overview of zooming

    One thing that I really wanted from the beginning was smooth zooming. When the user clicks one of the zoom buttons or presses a keyboard shortcut, the displayed image should smoothly flow in and out instead of jumping to the final zoom level — similar to the way the image smoothly shrinks in to make way for the palette when editing, and expands outwords once done. See this animated mock-up from Jimmac to get an idea.

    For the zooming to be smooth, we need to generate a number of intermediate zoom levels to fill out the frames in the animation. We have to dish out something in the ballpark of sixty different levels every second to be perceived as smooth because that’s the rate at which most displays refresh their screens. This would have been easier with the 5 to 20 megapixel images generated by smart-phones and consumer-grade digital SLRs; but just because we want things to be slick, it doesn’t mean we want to limit ourselves to the ordinary! There is high-end equipment out there producing images in excess of a hundred megapixels and we want to robustly handle those too.

    Downscaling by large factors is tricky. When we are aiming to generate sixty frames per second, there’s less than 16.67 milliseconds for each intermediate zoom level. All we need is a slightly big zoom factor that stresses the CPU and main memory just enough to exceed our budget and break the animation. It’s a lot more likely to happen than a pathological case that crashes the process or brings the system to a halt.

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.