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Optimizing 3D performance with virglrenderer

May 17, 2021 by Gert Wollny  |   Blog

Collabora has been investing into Perfetto to enable driver authors & users to get deep insights into driver internals and GPU performance. Here's how we applied this work to study workloads on the virtualized VirGL implementation.

Optimizing 3D performance with virglrenderer

Mainline Linux gains accelerated video decoding for Microchip's SAMA5D4

May 11, 2021 by Emil Velikov  |   Blog

The Hantro Video4Linux2 (V4L2) kernel module has gained support for another SoC! The Microchip SAMA5D4 features a single decode unit supporting MPEG2, VP8 and H.264 streams, alongside the built-in post-processing unit.

Mainline Linux gains accelerated video decoding for Microchip's SAMA5D4

Quick hack: Patching kernel modules using DKMS

May 05, 2021 by Frederic Danis  |   Blog

DKMS is a framework that is mostly used to build and install external kernel modules. It can also be used to install a specific patch to the modules of the current kernel, such as applying a specific fix to the Bluetooth USB subsystem.

Quick hack: Patching kernel modules using DKMS

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

Build your own application with GTK 4 as a Meson subproject!

April 29, 2021 by Xavier Claessens  |   Blog

Building GTK 4 as a Meson subproject for your own application is not only useful for Windows builds, but also for many Linux distributions that do not yet package a recent enough version of GTK 4 and/or its dependencies.

Build your own application with GTK 4 as a Meson subproject!

Profiling virtualized GPU acceleration with Perfetto

April 22, 2021 by Antonio Caggiano  |   Blog

Recently, we have been using Perfetto to successfully profile Apitrace traces in crosvm through VirGL renderer. We have now added perfetto instrumentation to VirGL renderer, Mesa, and Apitrace to see what happens precisely in a frame.

Profiling virtualized GPU acceleration with Perfetto

Continuous 3D Hand Pose Tracking using Machine Learning & Monado OpenXR

April 20, 2021 by Marcus Edel  |   Blog

As part of a project backed by INVEST-AI, a program managed by IVADO Labs, we have developed a multi-stage neural network-based solution that accurately locates and tracks the hands despite complex background noise and occlusion between hands.

Continuous 3D Hand Pose Tracking using Machine Learning & Monado OpenXR

An easy to use MTP implementation for your next embedded Linux project

April 13, 2021 by Andrzej Pietrasiewicz  |   Blog

Did you know you could run a permissively-licensed MTP implementation with minimal dependencies on an embedded device? Here's a step-by-step guide on how to easily run cmtp-responder on a Rock Pi 4 or any other board equipped with a UDC.

An easy to use MTP implementation for your next embedded Linux project

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

Rust: integrating LLVM source-base code coverage with GitLab

March 24, 2021 by Guillaume Desmottes  |   Blog

Earlier this year, the Rust compiler gained support for LLVM source-base code coverage. In this post we'll explain how to setup a CI job in a Rust project to feed source-base coverage information to GitLab.

Rust: integrating LLVM source-base code coverage with GitLab

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

Build and run GTK 4 applications with Visual Studio

March 18, 2021 by Xavier Claessens  |   Blog

Over the past few months, I've been working on a side project to improve Meson sub-project support. The best stress test is to build projects on Windows, without msys2, because it has no dependencies or tools installed (e.g. pkg-config).

Build and run GTK 4 applications with Visual Studio

Performance analysis in Linux

March 21, 2017 by Gabriel Krisman Bertazi  |   Blog

Modern CPUs implement a number of technologies that may affect application performance in unpredictable ways. Figuring out what is going wrong with an application can be a hard task, but it can become much easier with the correct analysis tools.

Performance analysis in Linux

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

Collabora in Linux Format

March 22, 2017 by Mark Filion  |   News and Events

Check out the April issue (#222) of Linux Format magazine for our new monthly column on all things Open Source, including graphics, multimedia and more!

Collabora in Linux Format

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!

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

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

GStreamer meets HotDoc

November 29, 2016 by Mark Filion  |   News and Events

Some exciting news today as GStreamer launches its redesigned documentation site, complete with dynamic navigation, search function and new tutorials. This new iteration is powered by HotDoc, a tool created by Collabora's Mathieu Duponchelle!

GStreamer meets HotDoc

Linux Plumbers Conference 2016

October 26, 2016 by Mark Filion  |   News and Events

Collabora is proud to be once again sponsoring the annual Linux Plumbers Conference, the developer conference that brings together the top developers working on the “plumbing” of Linux: kernel subsystems, core libraries, windowing systems, etc.

Linux Plumbers Conference 2016

GStreamer Conference 2016

October 07, 2016 by Mark Filion  |   News and Events

Collabora is proud to be a Platinum Sponsor of this year's GStreamer Conference, taking place at the Betahaus in Berlin, Germany on 10-11 October 2016. Come say hello, or catch one of the four presentations given by Collaborans during the conference!

GStreamer Conference 2016

Upcoming events - Fall 2016

September 19, 2016 by Mark Filion  |   News and Events

This fall, we're thrilled to be sponsoring not one, but five great conferences!

Upcoming events - Fall 2016

Event: IBC 2016

September 05, 2016 by Mark Filion  |   News and Events

Collabora will be exhibiting at IBC 2016, the premier annual event for professionals engaged in the creation, management and delivery of entertainment and news content worldwide.

Event: IBC 2016

Event: DebConf16

June 30, 2016 by Mark Filion  |   News and Events

Collabora is proud to be sponsoring DebConf16, the annual Debian developers meeting, taking place in Cape Town, South Africa, from 2 July to 9 July 2016.

Event: DebConf16

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Upcoming Events

Here are the online events we'll be attending in the coming weeks – join us!

OpenXR Virtual F2F

27-28 October, Online

VLDE 2021

27-28 October, Online

PackagingCon

9-10 November, Online

ESE Kongress

29 Nov - 03 Dec, Online

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