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Linux Kernel 5.2

July 17, 2019 by Gabriel Krisman Bertazi  |   News & Events

With 11 engineers authoring, reviewing and testing nearly 170 patches for this latest release, Collabora ranked 8th in the list of most active employers by lines changed, sharing ranks with some of the prominent employers in Linux kernel development.

Linux Kernel 5.2

GNOME meets Panfrost

June 26, 2019 by Alyssa Rosenzweig  |   Blog

In my last Panfrost blog post, I announced my internship goal: improve Panfrost to run GNOME3. GNOME is a popular Linux desktop making heavy use of OpenGL; to use GNOME with only free and open source software on a machine with Mali graphics, Panfrost…

GNOME meets Panfrost

Using dummy-hcd to play with USB gadgets

June 24, 2019 by Andrzej Pietrasiewicz  |   Blog

Dummy_hcd which consists of a software-emulated host controller and a UDC chip. In other words, this means you can play with USB gadgets even if you don't have the appropriate hardware, because your PC can act as both a USB host and a USB device.

Using dummy-hcd to play with USB gadgets

Welcoming the newest Collaborans!

June 21, 2019 by Jassie Badion  |   News & Events

For many, June 21, day of the Solstice, is a day of celebrations. At Collabora, we're also celebrating, as we take a moment to welcome all the newest members of our engineering and administration teams who've joined over the last year!

Welcoming the newest Collaborans!

Building Debian images for Le Potato and OrangePi with debos

June 18, 2019 by Frédéric Danis  |   Blog

Both the Le Potato and OrangePi Zero Plus2 boards are already supported by Armbian. But how do you get a minimal Debian upstream image with only the packages you want? Debos is the perfect tool to do this.

Building Debian images for Le Potato and OrangePi with debos

Joining Collabora for a summer of Panfrost

June 05, 2019 by Alyssa Rosenzweig  |   Blog

Years ago, I joined the open-source community with a passion and a mission: to enable equal access to high-quality computing via open-source software. With this mission, I co-founded Panfrost, aiming to create an open-source driver for the Mali GPU.

Joining Collabora for a summer of Panfrost

Google Summer of Code 2019

May 30, 2019 by Mark Filion  |   News & Events

A few days ago, coding began for this year's Google Summer of Code (GSoC) projects. Along with four GStreamer and Wayland related projects, this year's edition also includes two Debian projects for which Collaborans will be mentors.

Google Summer of Code 2019

Testing Video4Linux2 drivers like a boss

May 23, 2019 by Ezequiel Garcia  |   Blog

With virtme, you can run a custom built kernel on top of our running root filesystem. In this post, we explore another example of virtme in action, and see how to test Video4Linux2 drivers on bleeding edge GStreamer builds.

Testing Video4Linux2 drivers like a boss

Permissively-licensed MTP device implementation

May 16, 2019 by Andrzej Pietrasiewicz  |   Blog

Introducing cmtp-responder - a permissively licensed Media Transfer Protocol (MTP) responder implementation which allows embedded devices to provide MTP services and supports a core set of MTP operations.

Permissively-licensed MTP device implementation

An eBPF overview, part 5: Tracing user processes

May 14, 2019 by Adrian Ratiu  |   Blog

Up until now, talking in-depth about userspace tracing was deliberately avoided because it merits special treatment, hence this part devoted to it. We'll now look at the why of it, and we'll examine eBPF user tracing in two categories: static and dynamic.

An eBPF overview, part 5: Tracing user processes

Linux Kernel 5.1

May 09, 2019 by André Almeida  |   News & Events

Earlier this week, Linux Kernel 5.1 was released, and with it came over 13,000 commits from developers all around the world, including Collaborans. This time around, no less than 12 different developers contributed commits (64), sign-offs (111) & more.

Linux Kernel 5.1

CEF on Wayland upstreamed

May 08, 2019 by Santosh Mahto  |   Blog

After a successful team effort, the patch enabling the Chromium Embedded Framework (CEF) Ozone builds to run with different platform backends, such as Wayland, has finally landed upstream.

CEF on Wayland upstreamed

Desktop OpenGL 3.1 on Mali GPUs with Panfrost

January 13, 2021 by Alyssa Rosenzweig  |   Blog

The open source Panfrost driver for Arm Mali Midgard and Bifrost GPUs now provides non-conformant OpenGL ES 3.0 on Bifrost and desktop OpenGL 3.1 on Midgard (Mali T760 and newer) and Bifrost, in time for Mesa's first release of 2021.

Desktop OpenGL 3.1 on Mali GPUs with Panfrost

Empathy first: Driving growth through people leadership

November 30, 2020 by Eleni Katsoula  |   Blog

This year, the global pandemic has put a strain on us all. Motivation can become hard to maintain, worries can cloud our minds. Now more than ever, it is important to try and connect with our colleagues.

Empathy first: Driving growth through people leadership

Developing Wayland Color Management and High Dynamic Range

November 19, 2020 by Pekka Paalanen  |   Blog

Wayland is still lacking proper consideration for color management & support for high dynamic range (HDR) imagery. However, a group of developers has begun an effort to fix this situation. This is their story.

Developing Wayland Color Management and High Dynamic Range

A summer sprint: bringing near-native performance to Zink

November 06, 2020 by Mike Blumenkrantz  |   Blog

This week marks two years since the OpenGL implementation on Vulkan was initially announced. Since then, and especially over the past few months, much has progressed with many new features being added and performance now close to native (95%!).

A summer sprint: bringing near-native performance to Zink

From Panfrost to production, a tale of Open Source graphics

November 03, 2020 by Alyssa Rosenzweig  |   Blog

Since our previous update on Panfrost, the open source stack for Arm's Mali Midgard and Bifrost GPUs, we've focused on taking our driver from its reverse-engineered origins on Midgard to a mature stack.

From Panfrost to production, a tale of Open Source graphics

Engaging in an "Open First" remote internship at Collabora

October 20, 2020 by Gustavo Noronha  |   Blog

The concept of a remote internship may raise some doubts, or even red flags, for many students, as would remote jobs for professionals. As a result, we pay extra attention to how we onboard and support our interns.

Engaging in an "Open First" remote internship at Collabora

Building GStreamer text rendering and overlays on Windows with gst-build

September 28, 2020 by Aaron Boxer  |   Blog

GStreamer relies on various 2D font rendering and layout libraries such as Pango and Cairo to generate text for the Pango plugin, which contains elements such as textoverlay. Here's how to add the Pango plugin to a gst-build installation on Windows.

Building GStreamer text rendering and overlays on Windows with gst-build

Initcalls, part 2: Digging into implementation

September 25, 2020 by Mylène Josserand  |   Blog

In this second part of this blog post series on Linux kernel initcalls, we'll go deeper into implementation, with a look at the colorful __device_initcall() macro, the rootfs initcall, and how modules can be executed.

Initcalls, part 2: Digging into implementation

Open Source meets Super Resolution, part 1

September 21, 2020 by Marcus Edel  |   Blog

Introducing an accurate and light-weight deep network for video super-resolution upscaling, running on a completely open source software stack using Panfrost, the free and open-source graphics driver for Mali GPUs.

Open Source meets Super Resolution, part 1

Integrating libcamera into PipeWire

September 11, 2020 by Raghavendra Rao  |   Blog

PipeWire continues to evolve with the recent integration of libcamera, a library to support complex cameras. In this blog post, I'll explain why libcamera exists, what it does, and how we integrated it in PipeWire.

Integrating libcamera into PipeWire

Pushing pixels to your Chromebook

August 31, 2020 by Emil Velikov  |   Blog

A high-level introduction of the Linux graphics stack, how it is used within ChromeOS, and the work done to improve software rendering (while simultaneously improving GPU rendering by reducing the boilerplate needed in applications).

Pushing pixels to your Chromebook

Using the Linux kernel's Case-insensitive feature in Ext4

August 27, 2020 by Gabriel Krisman Bertazi  |   Blog

Last year, a (controversial) feature was added to the Linux kernel to support optimized case-insensitive file name lookups in the Ext4 filesystem. Here's a look at why this was merged, what improvements have been made since, and how to put it to work.

Using the Linux kernel's Case-insensitive feature in Ext4

A growth year for upstream kernel contributions

December 22, 2021 by Gustavo Padovan  |   News & Events

With over 350 patches authored and nearly 200 reviewed and tested in multiple subsystems, 2021 was a great year for Linux kernel development at Collabora. Here is a look at some of our achievements during the year.

A growth year for upstream kernel contributions

Meet wxrd, a standalone Wayland compositor for xrdesktop

December 20, 2021 by Christoph Haag  |   News & Events

The Linux desktop in VR goes headless! Introducing wxrd, a standalone Wayland compositor for xrdesktop based on wlroots, with minimal dependencies.

Meet wxrd, a standalone Wayland compositor for xrdesktop

Open Source in Japan, virtually

December 08, 2021 by Mark Filion  |   News & Events

A year of online conferences that began with linux.conf.au will end on a high note next week as Collaborans present three talks at Open Source Summit Japan + Automotive Linux Summit 2021. Join us!

Open Source in Japan, virtually

Kernel 5.15: A small but mighty Halloween release

November 10, 2021 by Sebastian Reichel  |   News & Events

It might be smaller than the last few kernels, but with well above 10,000 non-merge changes, the latest Linux kernel release still packs a punch. Released on October 31, kernel 5.15 brings lots of exciting new features.

Kernel 5.15: A small but mighty Halloween release

WirePlumber in Fedora 35

November 02, 2021 by George Kiagiadakis  |   News & Events

Today marks a very exciting day as Fedora 35 has now been released, and with it comes WirePlumber as the default session manager for PipeWire! Under development by Collabora since 2019, WirePlumber has now entered the linux desktop space.

WirePlumber in Fedora 35

Open Source Summit + Embedded Linux Conference 2021

September 24, 2021 by Mark Filion  |   News & Events

Collaborans will be actively participating in next week's activities with seven talks on topics including Rust build scripts, embedded deep learning on GStreamer, HEVC decoding on mainline Linux, PipeWire and WirePlumber, and more.

Open Source Summit + Embedded Linux Conference 2021

Panfrost achieves OpenGL ES 3.1 conformance on Mali-G52

September 21, 2021 by Alyssa Rosenzweig  |   News & Events

This important milestone is a step forward for the open source driver, as it now certifies Panfrost for use in commercial products containing Mali G52 and paves the way for further conformance submissions on other Mali GPUs.

Panfrost achieves OpenGL ES 3.1 conformance on Mali-G52

Generate a minimal GStreamer build, tailored to your needs

September 16, 2021 by Stéphane Cerveau  |   News & Events

GStreamer can be tricky to ship in a constrained device. Thanks to a partnership with Huawei, you can now use gst-build to generate a minimal GStreamer build, tailored to a specific application, or set of applications. Here's how.

Generate a minimal GStreamer build, tailored to your needs

Kernel 5.14: 30 years in the making and still improving

September 07, 2021 by Nícolas F. R. A. Prado  |   News & Events

With an ever-increasing interest in more modern hardware support, and a more reliable kernel that is thoroughly tested, contributions by Collabora's developers continue to help make this a reality for the Linux kernel.

Kernel 5.14: 30 years in the making and still improving

Linaro Virtual Connect - Fall 2021

September 01, 2021 by Mark Filion  |   News & Events

September's busy conference schedule kicks off next week with the Fall edition of Linaro Virtual Connect. Join us as we look at how to master your PipeWire streams with WirePlumber, and de-mystify GFX virtualization with VirGL!

Linaro Virtual Connect - Fall 2021

Reverse-engineering the Mali G78

July 20, 2021 by Alyssa Rosenzweig  |   News & Events

After a month of reverse-engineering the Arm Mali G78, we’re excited to release documentation on the Valhall instruction set, available as a PDF, as well as a Valhall assembler and disassembler to be used as a reverse-engineering aid.

Reverse-engineering the Mali G78

Kernel 5.13: Growing team and KernelCI hackfest

July 08, 2021 by Gabriel Krisman Bertazi  |   News & Events

Collabora's team working directly on the Linux kernel is growing. Collaborans continue to expand on their efforts to close the gap between hardware support on vendor trees and mainline.

Kernel 5.13: Growing team and KernelCI hackfest

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