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Embedded Linux & Open Source take the virtual stage

June 18, 2020 by Mark Filion  |   News & Events

Collabora will be presenting on five separate occasions during the virtual editions of Embedded Linux Conference North America and Open Source Summit North America, taking place later this month.

Embedded Linux & Open Source take the virtual stage

Generating MPEG-DASH streams for Open Source adaptive streaming with GStreamer

June 12, 2020 by Stéphane Cerveau  |   Blog

Adaptive streaming is a technique to provide flexibility and scalability by offering variable bit-rate streams to the client. Here's a quick guide on how to generate a MPEG-DASH stream (the most completely adaptive streaming technique) using GStreamer.

Generating MPEG-DASH streams for Open Source adaptive streaming with GStreamer

Bifrost meets GNOME: Onward & upward to zero graphics blobs

June 05, 2020 by Alyssa Rosenzweig  |   Blog

With only free software, a Mali G31 chip can now run Wayland compositors with zero-copy graphics, including GNOME 3. We can run every scene in glmark2-es2, 3D games like Neverball can be played, and video players mpv and Kodi are now supported.

Bifrost meets GNOME: Onward & upward to zero graphics blobs

Kernel 5.7: Forging ahead, despite COVID-19

June 04, 2020 by Andrzej Pietrasiewicz  |   News & Events

This latest release is the first to contain development work accomplished amid the lockdown measures. Despite these significant changes, Collaborans have also been steadfast in their contributions, with multiple projects progressing.

Kernel 5.7: Forging ahead, despite COVID-19

Google Summer of Code 2020

June 01, 2020 by Mark Filion  |   News & Events

Coding hss begun for this year's Google Summer of Code (GSoC) projects, announced earlier last month. The 2020 edition selected 1,199 students from 66 countries, to work with 199 mentoring organizations over the course of the summer.

Google Summer of Code 2020

Monado OpenXR runtime development gaining momentum: version 0.2, multi-layer support & more!

May 29, 2020 by Jakob Bornecrantz  |   News & Events

With the excellent (online) edition of Augmented World Expo 2020 in full swing this week, what better time to announce version 0.2 of the Monado OpenXR runtime for Linux. It's been a very busy three months since the last Monado developer update!

Monado OpenXR runtime development gaining momentum: version 0.2, multi-layer support & more!

Using regmaps to make Linux drivers more generic

May 27, 2020 by Adrian Ratiu  |   Blog

Device drivers can support more revisions and SoC platforms by abstracting away specific hardware interface layouts. Let's examine a specific instance of this process, namely the effort to make the MIPI DSI host controller driver more generic.

Using regmaps to make Linux drivers more generic

Laval Virtual: OpenXR master class in VR!

May 18, 2020 by Mark Filion  |   News & Events

A few weeks ago, Ryan Pavlik presented "Unifying Reality: Building Experiences with OpenXR", a master class on OpenXR, the open standard API for building VR and AR experiences that work across devices, now and into the future.

Laval Virtual: OpenXR master class in VR!

Cross-compiling with gst-build and GStreamer

May 15, 2020 by Stéphane Cerveau  |   Blog

gst-build is one of the main build systems used by the community to develop the GStreamer platform. In my last blog post, I presented gst-build and explained how to get started with it. Now, let's get straight to the point regarding cross-compilation.

Cross-compiling with gst-build and GStreamer

Using syzkaller, part 3: Fuzzing your changes

May 12, 2020 by Andre Almeida  |   Blog

In part 2 of this series on syzkaller, we looked at how to install the tool and use it to improve our code base. Now, how does syzkaller report a bug it finds in the execution path of a system call? Let's add a new syscall description and see how it goes.

Using syzkaller, part 3: Fuzzing your changes

xrdesktop 0.14 with OpenXR support is here!

May 08, 2020 by Lubosz Sarnecki  |   News & Events

Sponsored by Valve, this latest release of the Open Source project which enables interaction with traditional desktop environments, such as GNOME and KDE, in VR, brings the largest amount of changes yet, with many new features and architectural improvements.

xrdesktop 0.14 with OpenXR support is here!

WirePlumber, the PipeWire session manager

May 07, 2020 by George Kiagiadakis  |   Blog

An in-depth look at WirePlumber, the modular and extensible session manager for PipeWire that brings advanced device management, policy control and security enforcement capabilities.

WirePlumber, the PipeWire session manager

Kernel debugging with QEMU: An overview of tools available

March 13, 2017 by Frédéric Dalleau  |   Blog

Once you've setup a virtual machine in QEMU using debootstrap, there are a number of tools available for testing, tracing and debugging, such as Kmemleak for memory leaks, GDB (GNU Debugger), ftrace et dynamic_debug.

Kernel debugging with QEMU: An overview of tools available

Quick hack: Removing the Chromebook Write-Protect screw

March 08, 2017 by Robert Foss  |   Blog

Before being able to write firmware data to any production Chromebook device, the Write-Protect screw has to be removed.

Quick hack: Removing the Chromebook Write-Protect screw

A flurry of open source graphics milestones

March 01, 2017 by Daniel Stone  |   Blog

The past few months have been busy ones on the open-source graphics front, bringing with them Wayland 1.13, Weston 2.0 and Mesa 17.0. Here's a look at some of these developments, including Collabora's behind-the-scenes work on performance improvement.

A flurry of open source graphics milestones

Quick hack: Precompiling APK files during Android AOSP build

February 23, 2017 by Robert Foss  |   Blog

How to create your custom Android image, and APK app(s), all at once.

Quick hack: Precompiling APK files during Android AOSP build

Quick hack: Setting up a ChromiumOS dev environment

February 16, 2017 by Robert Foss  |   Blog

How to set up a fully functional ChromiumOS development environment on actual Chromebook hardware.

Quick hack: Setting up a ChromiumOS dev environment

Optimizing graphics memory bandwidth with compression and tiling: Notes on DRM format modifiers

February 09, 2017 by Varad Gautam  |   Blog

Over the past few weeks, I have been working for Collabora on plumbing DRM format modifier support across a number of components in the graphics stack. This post documents the work and the related consequences/implications.

Optimizing graphics memory bandwidth with compression and tiling: Notes on DRM format modifiers

Mainline Explicit Fencing - Part 3

January 26, 2017 by Gustavo Padovan  |   Blog

In the last two articles we talked about how Explicit Fencing can help the graphics pipeline in general and what happened on the effort to upstream the Android Sync Framework. Now on the third and final post of this series we will go through the Explicit…

Mainline Explicit Fencing - Part 3

A look at the Chamelium board

January 24, 2017 by Tomeu Vizoso  |   Blog

Last month I gave a short talk about the Chamelium board from the ChromeOS team, a board that is getting more and more usage outside of Google as it can help you automate the testing of your display (and not only!) code and hardware.

A look at the Chamelium board

Setting up QEMU-KVM for kernel development

January 16, 2017 by Frédéric Dalleau  |   Blog

A look at the fundamentals of building and booting a kernel in QEMU using debootstrap, so you have the needed infrastructure to test your kernel changes in QEMU.

Setting up QEMU-KVM for kernel development

Collabora Contributions to Linux Kernel 4.9

December 14, 2016 by Gustavo Padovan  |   Blog

Linux Kernel 4.9 was released this week and once more Collabora developers took part on the kernel development cycle. This time we contributed 36 patches by 11 different developers, our highest number of single contributors in a kernel release ever. Remember…

Collabora Contributions to Linux Kernel 4.9

A tale of cylinders and shadows

November 22, 2016 by Gustavo Noronha  |   Blog

Our ongoing work on improving WebKitGTK+ performance brought us to take a closer look as to why GTK+ was experiencing significant speed issues when used with Wayland and HiDPI screens, revealing the root cause to be within the lower level toolkit.

A tale of cylinders and shadows

How continuous integration can help you keep pace with the Linux kernel

November 08, 2016 by Tomeu Vizoso  |   Blog

Almost all of Collabora's customers use the Linux kernel on their products. Often they will use the exact code as delivered by the SBC vendors and we'll work with them in other parts of their software stack. But it's becoming increasingly common for our…

How continuous integration can help you keep pace with the Linux kernel

A very successful first KernelCI hackfest

June 21, 2021 by Shreeya Patel  |   News & Events

Earlier this month, Collabora took part in the very first KernelCI hackfest, initiated as a joint effort with the Google Chrome OS team. Here's a look at what led to our participation and what was accomplished.

A very successful first KernelCI hackfest

Growing for the road ahead

June 21, 2021 by Erica Ryoo  |   News & Events

Despite the many obstacles brought on by the pandemic, Collabora has continued to grow its teams for the road ahead. Join us in welcoming Kiril, Benjamin, Daniel, Shreeya, Ariel, Nicolas and James!

Growing for the road ahead

Wine on Wayland meets Vulkan, multi-monitor support & more

June 07, 2021 by Alexandros Frantzis  |   News & Events

We first announced our work on the driver last December, and posted an update earlier this year. We are now happy to announce a second update for this driver, adding several major features which increase its scope and utility.

Wine on Wayland meets Vulkan, multi-monitor support & more

A libweston-based compositor for Automotive Grade Linux

June 02, 2021 by Marius Vlad  |   News & Events

Simplifying AGL's existing Wayland-based graphical stack and avoiding the use of modules that aren't maintained upstream has lead to the creation of a new compositor based on libweston, bringing more reliable and fine-grained system control.

A libweston-based compositor for Automotive Grade Linux

Bridging the OpenGL and Vulkan divide

May 27, 2021 by Rohan Garg  |   News & Events

Thanks to a new, low overhead extension in Mesa, OpenGL and Vulkan applications can now talk to each other, bringing more flexibility to application developers while easing the transition path between the industry-standard Khronos® APIs.

Bridging the OpenGL and Vulkan divide

Kernel 5.12: Working to close the gap

May 04, 2021 by Ariel D'Alessandro  |   News & Events

With their latest contributions all around the kernel, notably to the Video4Linux APIs and hardware enablement, Collaborans continue to expand on their efforts to close the gap between hardware support on vendor trees and mainline.

Kernel 5.12: Working to close the gap

PanVk: An Open Source Vulkan driver for Arm Mali Midgard and Bifrost GPUs

March 25, 2021 by Boris Brezillon  |   News & Events

The Panfrost project started as a reverse engineering effort to understand Arm Mali Midgard and Bifrost GPU internals. With the driver getting more and more mature, the natural next step was to work on an Open Source Vulkan driver for those GPUs.

PanVk: An Open Source Vulkan driver for Arm Mali Midgard and Bifrost GPUs

Linaro Virtual Connect - Spring 2021

March 22, 2021 by Mark Filion  |   News & Events

Join us this week at the Spring edition of Linaro Virtual Connect, as we discuss bringing stateless video decoding support to Linux, and take a look at where we are, and what's to come, for open drivers for Arm GPUs.

Linaro Virtual Connect - Spring 2021

OpenGL on DirectX: Conformance & upstreaming of the D3D12 driver

March 10, 2021 by Erik Faye-Lund  |   News & Events

One year ago, we announced a new partnership with Microsoft to build OpenGL mapping layers to DirectX 12. Today, we're excited to share that the we have passed the OpenGL 3.3 conformance tests, and have now upstreamed the D3D12 driver in Mesa 3D!

OpenGL on DirectX: Conformance & upstreaming of the D3D12 driver

Wine on Wayland: An exciting first update

February 19, 2021 by Alexandros Frantzis  |   News & Events

Two months ago we announced a first proposal for a Wayland driver for Wine, the compatibility layer for Windows applications. Here's an update on this effort, which contains more details and instructions for building and running the Wayland driver.

Wine on Wayland: An exciting first update

New year, new kernel: Collabora's contributions to Linux 5.11

February 17, 2021 by Ezequiel Garcia  |   News & Events

The first kernel release of 2021 brings a number of highlights contributed by Collaborans, including the new Syscall User Dispatch mechanism, and the destaging of both the H.264 stateless decoding interface and the Rockchip ISP driver.

New year, new kernel: Collabora's contributions to Linux 5.11

Monado 21.0.0, an officially conformant OpenXR implementation!

February 15, 2021 by Jakob Bornecrantz  |   News & Events

Monado, the OpenXR runtime for Linux, is now officially conformant! In recognition of this milestone, a first major release version of the OpenXR runtime for Linux is now available, bringing with it a SteamVR driver!

Monado 21.0.0, an officially conformant OpenXR implementation!

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Here are the events we'll be attending in the coming weeks – come say hello!

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April 16-18, Seattle, USA

 

Khronos F2F

April 22-26, Brussels, Belgium

 

 

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