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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

Two weeks, four events!

March 07, 2017 by Mark Filion  |   News and Events

Over the next two weeks, Collaborans will be present at four different events across the globe. If you plan on attending at any of these conferences, please reach out and say hello!

Two weeks, four events!

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

Embedded Linux Conference 2017

February 21, 2017 by Mark Filion  |   News and Events

Starting today, and for the next few days, Collaborans will be taking part in this year's Embedded Linux Conference North America, the "premier vendor-neutral technical conference for companies and developers using Linux in embedded products".

Embedded Linux Conference 2017

Collabora & Linux Kernel 4.10

February 20, 2017 by Gustavo Padovan  |   News and Events

Linux Kernel 4.10 is out, and this time Collabora contributed a total of 39 patches by 10 different developers.

Collabora & Linux Kernel 4.10

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

Hello Amsterdam!

February 08, 2017 by Mark Filion  |   News and Events

On February 8 & 9, Collabora will be attending Integrated Systems Europe 2017, the world's largest tradeshow dedicated to professional AV and electronic systems integration, taking place at the Amsterdam RAI.

Hello Amsterdam!

Collabora at FOSDEM 2017

January 31, 2017 by Mark Filion  |   News and Events

We're headed to Brussels, Belgium for FOSDEM 2017, the two-day event organized by volunteers to promote the widespread use of free and open source software.

Collabora at FOSDEM 2017

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

High bitrate video streaming with GStreamer's RTP elements

August 20, 2020 by Antonio Ospite  |   Blog

Key performance improvements and fixes to GStreamer's RTP stack have landed in GStreamer 1.18, due in the coming months. The latest enhancements provide an important boost in throughput, opening the gate to high bitrate video streaming.

High bitrate video streaming with GStreamer's RTP elements

Understanding computer vision & AI, part 1

August 13, 2020 by Marcus Edel  |   Blog

Following our recent presentation at OSSummit, many showed interest in learning more about solving real-world problems with computer vision. Here is a new blog series, on computer vision, object detection, and building a system on the edge.

Understanding computer vision & AI, part 1

Testing Weston DRM/KMS backends with virtme and VKMS

August 07, 2020 by Leandro Ribeiro  |   Blog

Recent work in Weston, the industry-standard Wayland compositor, has enabled DRM/KMS backends to be tested in the absence of real hardware, enabling more battle testing of corner-case and error conditions within automated testing frameworks.

Testing Weston DRM/KMS backends with virtme and VKMS

An introduction to Linux kernel initcalls

July 14, 2020 by Mylène Josserand  |   Blog

Initcalls, which serve to call functions during boot, were implemented early on in the development of the Linux Kernel. Read on as we take a closer look, including their purpose, their usage, ways to debug them (using initcall_debug or FTrace), and more.

An introduction to Linux kernel initcalls

Deep dive into OpenGL over DirectX layering

July 09, 2020 by Louis-Francis Ratté-Boulianne  |   Blog

Earlier this year, we announced a new project with Microsoft: the implementation of OpenCL & OpenGL to DirectX translation layers. Here's the latest on this work, including the steps taken to improve the performance of the OpenGL-On-D3D12 driver.

Deep dive into OpenGL over DirectX layering

Using syzkaller, part 4: Driver fuzzing

June 26, 2020 by Ricardo Cañuelo Navarro  |   Blog

Syzkaller is much needed tool for Linux kernel testing and debugging. With some work, it can also be enhanced to find bugs in specific drivers, such as V4L2. Here's how.

Using syzkaller, part 4: Driver fuzzing

Cross building Rust GStreamer plugins for the Raspberry Pi

June 23, 2020 by Guillaume Desmottes  |   Blog

Previously, we discussed about how Rust can be a great language for embedded programming. In this article, we'll explain an easy setup to cross build Rust code depending on system libraries, a common requirement when working on embedded systems.

Cross building Rust GStreamer plugins for the Raspberry Pi

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

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

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

Open source machine learning at IBC 2022

September 06, 2022 by Kara Bembridge  |   News & Events

Showcasing two new software demonstrations featuring machine learning, including backend video compression that runs on Panfrost, and a data quality assurance tool designed to integrate into the annotation pipeline.

Open source machine learning at IBC 2022

Last chance to submit to FOSS XR!

August 30, 2022 by Frédéric Plourde  |   News & Events

Be part of the FOSSXR lineup by submitting your talk by September 5th, 2022. That means there's one week left for all you AR and VR enthusiasts and industry movers to share your exciting XR projects/news/demos with the world.

Last chance to submit to FOSS XR!

Fostering connections at Open Source Summit Latin America

August 16, 2022 by Kara Bembridge  |   News & Events

A magnet for open source supporters, the very first edition of Open Source Summit Latin America is opening its virtual doors. This new annual conference takes place online from August 23 to 24 with 5 talks from Collabora's very own!

Fostering connections at Open Source Summit Latin America

Kernel 5.19: Probably the final release of the 5.x series

August 02, 2022 by Cristian Ciocaltea  |   News & Events

As usual, there are quite a few changes merged into the mainline kernel. Let's take a look at some of the contributions by Collabora's kernel team!

Kernel 5.19: Probably the final release of the 5.x series

Weston 10.0.1 - a bug-fix release

July 05, 2022 by Marius Vlad  |   News & Events

The latest release of Weston was made on February 1, 2022. Meanwhile, a few bugs were discovered and we decided to do a bug-fix release, which we haven't had in several years.

Weston 10.0.1 - a bug-fix release

Adding even more heads for the group picture

June 21, 2022 by Kara Bembridge  |   News & Events

Part steadfast approach - part welcoming spirirt; Collabora continues to successfully expand with new talent amply on deck. Well ahead of the remote work curve, our new joiners have settled into their roles from their respective corners of the planet.

Adding even more heads for the group picture

Emerging ideas at Open Source Summit North America

June 16, 2022 by Kara Bembridge  |   News & Events

Big events draw in an array of individuals to learn and connect, and the Open Source Summit North America is no exception. Jam-packed with sessions to uncover from June 21 to 24, this year's event features three talks by Collabora's very own!

Emerging ideas at Open Source Summit North America

Conformant open source support for Mali-G57

June 06, 2022 by Alyssa Rosenzweig  |   News & Events

Mali-G57 features in new MediaTek Chromebooks with the MT8192 and MT8195 system-on-chips. With Mesa 22.2 and an appropriate kernel, accelerated graphics will work out of the box on Linux on these laptops.

Conformant open source support for Mali-G57

Kernel 5.18: Milestones for the road ahead

June 02, 2022 by Dmitry Osipenko  |   News & Events

Released by Linus Torvalds on May 22 after a busy two-month development cycle, Linux kernel 5.18 brings new features and lights up new hardware. Let's take a look at the contributions made by our engineering team.

Kernel 5.18: Milestones for the road ahead

Finding the secret ingredient at Embedded and Kernel Recipes

May 26, 2022 by Kara Bembridge  |   News & Events

After a two-year hiatus, the City of Lights is shinning brightly again to welcome the community for a full week of engaging talks at Embedded Recipes and Kernel Recipes conferences.

Finding the secret ingredient at Embedded and Kernel Recipes

Talks of the town: Software engineering edition

May 17, 2022 by Kara Bembridge  |   News & Events

Less than a day away, May 18th looks to be a very busy time. With Live Embedded Event and Embedded Vision Summit taking place almost simultaneously, Collabora will be presenting four different talks!

Talks of the town: Software engineering edition

PipeWire: Bluetooth support status update

April 29, 2022 by Frederic Danis  |   News & Events

Over the last two years, Bluetooth® audio support has steadily grown in PipeWire and has become a featureful, stable, conformant, open source Bluetooth® audio stack implementation. Here's a look at where things stand.

PipeWire: Bluetooth support status update

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Upcoming Events

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

Electronica

November 12-15, Munich, Germany

Linux Foundation Members Meeting

November 19-21, Napa, USA

NeurIPS

December 10-15, Vancouver, Canada

FOSDEM

February 1-2, Brussels, Belgium

 

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