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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

DebConf18

July 26, 2018 by Mark Filion  |   News & Events

Collabora is heading East to sponsor & attend DebConf18, the annual Debian conference! The week-long event takes place for the first time in Asia, at the National Chiao Tung University Microelectronics & Information Research Center, in Hsinchu Taiwan.

DebConf18

GUADEC 2018

June 29, 2018 by Mark Filion  |   News & Events

By this time next week, Collaborans will have arrived in Almería, Spain, to attend and speak at the 2018 edition of GUADEC, the annual GNOME conference. Come say hello!

GUADEC 2018

Linux Kernel 4.17

June 04, 2018 by Enric Balletbò i Serra  |   News & Events

Linus Torvalds has now released the official Linux 4.17, so it’s time for our traditional blog post summing up our contributions to the latest version of the Linux kernel, which include a number of patches to the DRM subsystem.

Linux Kernel 4.17

foss-north

April 20, 2018 by Mark Filion  |   News & Events

This weekend, we're headed to Gothenburg, Sweden, to meet the Nordic FOSS community at foss-north, a free / open source conference covering both software and hardware from the technical perspective!

foss-north

Open Source at NAB

April 06, 2018 by Mark Filion  |   News & Events

Attending the NAB Show in Las Vegas? Make sure to stop by Collabora's booth, #N2908VR in the North Hall, and get a firsthand look at the latest in Open Source software integration!

Open Source at NAB

Welcoming 9 new Collaborans!

April 03, 2018 by Jassie Badion  |   News & Events

Meet the newest members of our ever-growing engineering and administrative teams! Welcome Arnaud, Omar, Correntin, Lakshmipathi, Rebecca, Ezequiel, Ritesh, Ana and Zeeshan!

Welcoming 9 new Collaborans!

Linux Kernel 4.16

April 02, 2018 by Gustavo Padovan  |   News & Events

Linux Kernel 4.16 was released over the weekend, and with it came 33 patches contributed by 8 different Collabora developers, including the addition of usb3 and extcon support for Rockchip RK3399 devices, and display support for the Nokia N9.

Linux Kernel 4.16

Collabora & GStreamer 1.14

March 22, 2018 by Olivier Crête  |   News & Events

After a particularly long cycle of over 10 months, GStreamer accumulated many improvements that are now available in the 1.14 release. Here's a look at some of the contributions from Collabora's engineers that we're particularly proud of.

Collabora & GStreamer 1.14

FOSSASIA Summit 2018

March 22, 2018 by Mark Filion  |   News & Events

After a great time in Portland last week for ELC, Collaborans have arrived in Singapore for the 2018 edition of FOSSASIA Summit, the premier Open Technology event in Asia for developers, contributors, start-ups, and technology companies.

FOSSASIA Summit 2018

Embedded Linux Conference 2018

March 09, 2018 by Mark Filion  |   News & Events

It's that time of the year again! The snow has melted, spring is right around the corner and the annual Embedded Linux Conference begins next week in Portland! If you are planning on attending, come say hello or catch one of our three presentations!

Embedded Linux Conference 2018

Embedded World 2018

February 26, 2018 by Mark Filion  |   News & Events

This week, we're in Nuremberg, Germany to take part in this year's edition of Embedded World, the leading international fair for embedded systems! Come say hello, booth 4-170!

Embedded World 2018

Collabora & Linux Kernel 4.15

January 29, 2018 by Gustavo Padovan  |   News & Events

Linux Kernel 4.15 was released yesterday, and it once again contained patches contributed by Collabora, including bigger patchsets like V4L2 Explicit Synchronization and UTF-8 case insensitive lookups for EXT4.

Collabora & Linux Kernel 4.15

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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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