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Graphics: Digital Restrictions (DRM) in Weston/Wayland, DXVK, Valve, NVIDIA, Mesa and AMD

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  • Weston 8.0 Released With DRM HDCP Support, EGL Partial Updates, Headless OpenGL

    Highlights of Weston 8.0 include better DRM hardware planes support, HDCP content protection in conjunction with the DRM kernel driver back-end, headless OpenGL support, EGL_KHR_partial_update support for allowing partial screen updates for better efficiency with drivers supporting this EGL extension, the direct display extension, a memory optimization, and various other changes.

  • DXVK 1.5.2 Released With Many Game Fixes

    Coming a few weeks past DXVK 1.5.1 is now version 1.5.2 and it brings with it quite a number of improvements.

    First of all, DXVK 1.5.2 now targets the Vulkan 1.1 graphics API (not to be confused with Vulkan 1.2 that was just released). In requiring Vulkan 1.1, the graphics driver requirements are slightly elevated but still not bad at all as late 2017 Mesa drivers and newer are fine and the NVIDIA 390 series or newer. Nearly all Linux gamers should be set with their current drivers unless running quite an outdated distribution.

  • Valve's ACO Shader Compiler Back-End For Radeon Vulkan Is Now In Good Shape For GCN 1.0

    As last minute material for Mesa 20.0 is making Valve's "ACO" AMD compiler back-end for the RADV Vulkan driver in better shape for GFX6/GCN1.0 graphics hardware.

    Enabling RADV ACO, which was mainlined in Mesa 19.3, can shorten Vulkan shader compiler times and help with overall gaming performance. The results have been compelling and initially was focused on the very recent AMD Radeon graphics cards.

  • NVIDIA Contributes Much Less To The Linux Kernel Than Intel Or AMD

    Yesterday I put together some statistics on the AMD vs. Intel contributions to the upstream Linux kernel during the 2010s, but a request coming in off that was how do NVIDIA's contributions compare. Here is a look at the NVIDIA contributions to the Linux kernel over the past decade.

    Obviously NVIDIA's contributions are much less given they are primarily focused on a proprietary graphics driver stack compared to Intel and AMD with their Direct Rendering Manager drivers within the Linux kernel. But NVIDIA does contribute to the Linux kernel: they ultimately upstream their Tegra SoC support and other bits where it makes business sense. While they do not contribute much right now to open-source desktop graphics, they do contribute more to Nouveau where it concerns the Tegra graphics.

  • Nsight Graphics 2020.1 Released With Profiling For Vulkan+OpenGL Interop

    NVIDIA on Thursday introduced Nsight Graphics 2020.1 that to its profiling support can now handle OpenGL + Vulkan interoperability for games/applications making use of both APIs. While not many game engines / apps are yet using the likes of OpenGL 4.6 ARB_gl_spirv, Nsight is ready.

    Beyond profiling support for Vulkan+OpenGL interop, there are other profiling improvements, the Nsight Aftermath SDK is added for generating GPU mini-dumps with DirectX 12 software, and support for new Vulkan extensions. On the Vulkan side is now shader clock support, SPIR-V 1.4, and shader subgroup extended types.

  • Mesa 20.0 Now Defaults To The New Intel Gallium3D Driver For Faster OpenGL

    After missing their original target of transitioning to Intel Gallium3D by default for Mesa 19.3 as the preferred OpenGL Linux driver on Intel graphics hardware, this milestone has now been reached for Mesa 20.0!

    We've known that the revised Intel goal was Mesa 20.0 but that change-over was looking less likely especially with Mesa 20.0 entering feature freeze next week, but just in time the default change-over from i965 to Iris Gallium3D has happened.

  • Intel's OpenSWR Rasterizer Starts Seeing Tessellation Support

    OpenSWR is Intel's software rasterizer driver developed within Mesa as an alternative to Gallium3D's LLVMpipe and the slow Softpipe. OpenSWR is designed for delivering good CPU-based OpenGL graphics performance designed for visualization software running on workstations to HPC clusters. Like LLVMpipe, OpenSWR employs LLVM for some of its CPU optimizations.

  • AMD Ryzen 4000 Mobile Series "Renoir" Graphics No Longer Experimental With Linux 5.5

    While the Linux 5.5 kernel is expected to be released as soon as this Sunday, a last minute change to the AMDGPU DRM driver makes the Renoir graphics no longer treated as experimental. With that, there is open-source support out-of-the-box rather than being hidden behind a kernel module flag.

    AMD has been working on the Renoir support for Linux going back to the end of last summer. Renoir was sent in for the Linux 5.4 kernel but initially treated as "experimental" support while now at the end of the Linux 5.5 cycle it's no longer treated as experimental.

  • Disable Nvidia GPU on the Thinkpad T490

    I wrote about installing Linux on the Lenovo ThinkPad T490 last month and one of the biggest challenges was getting graphics working properly. The T490 comes with an option where you can get a discrete Nvidia MX250 GPU and it packs plenty of power in a small footprint.

More in Tux Machines

4 technologists on careers in tech for minorities

In honor of Black History Month, I've garnered the opinions of a few of my favorite technology professionals and open source contributors. These four individuals are paving the way for the next generation alongside the work they're doing in the technology industry. Learn what Black History Month means to them, what influences their career, resources for minorities wanting to break into tech, and more. Read more

Qt 5.15 Beta1 Released

I am happy to announce to you Qt 5.15 is moved to Beta phase and we have released Qt 5.15 Beta1 today. As earlier our plan is to publish new Beta N releases regularly until Qt 5.15 is ready for RC. Current estimate for Qt 5.15 RC is ~ end of April, see details from Qt 5.15 releasing wiki. Please take a tour now & test Beta1 packages. As usual you can get Qt 5.15 Beta1 by using Qt online installer (for new installations) or by using maintenance tool from your existing Qt online installation. Separate Beta1 source packages are also available in qt account and in Read more

Fedora’s gaggle of desktops

There are 38 different desktops or window managers in Fedora 31. You could try a different one every day for a month, and still have some left over. Some have very few features. Some have so many features they are called a desktop environment. This article can’t go into detail on each, but it’s interesting to see the whole list in one place. To be on this list, the desktop must show up on the desktop manager’s selection list. If the desktop has more than one entry in the desktop manager list, they are counted just as that one desktop. An example is “GNOME”, “GNOME Classic” and “GNOME (Wayland).” These all show up on the desktop manager list, but they are still just GNOME. Read more

Programming: 'DevOps', Caddyfile, GCC 8.4 RC and Forth

  • A beginner's guide to everything DevOps

    While there is no single definition, I consider DevOps to be a process framework that ensures collaboration between development and operations teams to deploy code to production environments faster in a repeatable and automated way. We will spend the rest of this article unpacking that statement. The word "DevOps" is an amalgamation of the words "development" and "operations." DevOps helps increase the speed of delivering applications and services. It allows organizations to serve their customers efficiently and become more competitive in the market. In simple terms, DevOps is an alignment between development and IT operations with better communication and collaboration. DevOps assumes a culture where collaboration among the development, operations, and business teams is considered a critical aspect of the journey. It's not solely about the tools, as DevOps in an organization creates continuous value for customers. Tools are one of its pillars, alongside people and processes. DevOps increases organizations' capability to deliver high-quality solutions at a swift pace. It automates all processes, from build to deployment, of an application or a product.

  • How to solve the DevOps vs. ITSM culture clash

    Since its advent, DevOps has been pitted against IT service management (ITSM) and its ITIL framework. Some say "ITIL is under siege," some ask you to choose sides, while others frame them as complementary. What is true is that both DevOps and ITSM have fans and detractors, and each method can influence software delivery and overall corporate culture.

  • JFrog Launches JFrog Multi-Cloud Universal DevOps Platform

    DevOps technology company JFrog has announced its new hybrid, multi-cloud, universal DevOps platform called the JFrog Platform that drives continuous software releases from any source to any destination. By delivering tools in an all-in-one solution, the JFrog Platform aims to empower organizations, developers and DevOps engineers to meet increased delivery requirements. For the uninitiated, JFrog is the creator of Artifactory, the heart of the Universal DevOps platform for automating, managing, securing, distributing, and monitoring all types of technologies.

  • New Caddyfile and more

    The new Caddyfile enables experimental HTTP3 support. Also I’ve added a few redirects to my new domain. All www prefix requests get redirected to their version without www prefix. My old domain redirects now to my new domain Also I had to add connect-src 'self' to my CSP, because Google Lighthouse seems to have problems with defalt-src 'none'. If just default-src 'none' is being set, Google Lighthouse can’t access your robot.txt. This seems to be an issue in the Google Lighthouse implementation, the Google Search Bot is not affected.

  • Content Addressed Vocabulary

    How can systems communicate and share meaning? Communication within systems is preceded by a form of meta-communication; we must have a sense that we mean the same things by the terms we use before we can even use them. This is challenging enough for humans who must share meaning, but we can resolve ambiguities with context clues from a surrounding narrative. Machines, in general, need a context more explicitly laid out for them, with as little ambiguity as possible. Standards authors of open-world systems have long struggled with such systems and have come up with some reasonable systems; unfortunately these also suffer from several pitfalls. With minimal (or sometimes none at all) adjustment to our tooling, I propose a change in how we manage ontologies.

  • GCC 8.4 Release Candidate available from
    The first release candidate for GCC 8.4 is available from

    and shortly its mirrors.  It has been generated from git commit
    I have so far bootstrapped and tested the release candidate on
    x86_64-linux and i686-linux.  Please test it and report any issues to
    If all goes well, I'd like to release 8.4 on Wednesday, March 4th.
  • GCC 8.4 RC Compiler Released For Testing

    GCC 8.4 will hopefully be released next week but for now a release candidate is available for testing the latest bug fixes in the mature GCC8 series. GCC 8.4 is aiming for release next week as potentially the last of the GCC8 series while GCC 9.3 is also coming soon. GCC 8.4 represents all of the relevant bug fixes over the past year for back-porting to users still on GCC 8. GCC 10 (in the form of version GCC 10.1) meanwhile as the next feature release should be out in the next month or two.

  • Excellent Free Tutorials to Learn Forth

    Forth is an imperative stack-based programming language, and a member of the class of extensible interactive languages. It was created by Charles Moore in 1970 to control telescopes in observatories using small computers. Because of its roots, Forth stresses efficiency, compactness, flexible and efficient hardware/software interaction. Forth has a number of properties that contrast it from many other programming languages. In particular, Forth has no inherent keywords and is extensible. It is both a low level and high level language. It has the interesting property of being able to compile itself into a new compiler, debug itself and to experiment in real time as the system is built. Forth is an extremely flexible language, with high portability, compact source and object code, and a language that is easy to learn, program and debug. It has an incremental compiler, an interpreter and a very fast edit-compile-test cycle. Forth uses a stack to pass data between words, and it uses the raw memory for more permanent storage. It also lets coders write their own control structures. Forth has often being deployed in embedded systems due to the compactness of object code. Forth is also used in boot loaders such as Open Firmware (developed by Sun Microsystems) as well as scientific fields such as astronomy, mathematics, oceanography and electrical engineering.