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Writing an open source GPU driver - without the hardware

January 27, 2022 by Alyssa Rosenzweig  |   Blog

Until now, no Valhall devices (Mali-G57, Mali-G78) ran mainline Linux - whilst this made driver development obviously difficult, there’s no better time to write drivers than before the devices even get into the hands of end users.

Writing an open source GPU driver - without the hardware

A Pixel's Color & new documentation repository

January 25, 2022 by Pekka Paalanen  |   Blog

My work on Wayland and Weston color management and HDR support has been full of learning new concepts and terms. Many of them are crucial for understanding how color works, and what the values in a pixel actually mean.

A Pixel's Color & new documentation repository

Kernel 5.16: A new release for a new year

January 20, 2022 by André Almeida  |   News & Events

With kernel 5.16, the community has once again produced a release full of great features, including two projects that had been in development for some time by our kernel team: the new futex syscall and the new fanotify event.

Kernel 5.16: A new release for a new year

First up in 2022: linux.conf.au!

January 11, 2022 by Mark Filion  |   News & Events

The new year has only just begun, and already our first conference of 2022 is on the horizon. Join us at linux.conf.au, as we discuss bringing WebM Alpha support to GStreamer, and provide a status update on the futex2 syscall.

First up in 2022: linux.conf.au!

Wine on Wayland year-end update: improved functionality & stability

December 22, 2021 by Alexandros Frantzis  |   Blog

It has been just over a year since we first announced our effort to implement a Wayland driver for Wine. Here's a recap of what has been done since then to improve both the functionality and stability of the driver.

Wine on Wayland year-end update: improved functionality & stability

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

Venus on QEMU: Enabling the new virtual Vulkan driver

November 26, 2021 by Antonio Caggiano  |   Blog

A step-by-step guide on how to enable 3D acceleration of Vulkan applications in QEMU through the new Venus experimental Vulkan driver for VirtIO-GPU with a local development environment.

Venus on QEMU: Enabling the new virtual Vulkan driver

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

Run your own CI pipeline with GStreamer's new monorepo

October 26, 2021 by Xavier Claessens  |   Blog

Maintaining a non-trivial set of GStreamer patches can be tricky. Thanks to the recent move to a single, unified git repo, you can now easily run a GStreamer continuous integration pipeline on your own GitLab instance. Here's how.

Run your own CI pipeline with GStreamer's new monorepo

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

Panfrost performance counters with Perfetto

August 21, 2020 by Antonio Caggiano  |   Blog

We have now integrated Mali GPU hardware counters supported by Panfrost with Perfetto's tracing SDK, unlocking all-in-one graphics-aware profiling on Panfrost systems!

Panfrost performance counters with Perfetto

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

KernelCI now testing Linux Rust code

December 06, 2022 by Adrian Ratiu  |   News & Events

After waiting in the Linux-next integration tree for about 18 months, the basic Rust infrastructure finally landed in the mainline Linux kernel with the imminent release of v6.1.

KernelCI now testing Linux Rust code

Shifting to open gears for the Automotive Linux Summit

December 01, 2022 by Kara Bembridge  |   News & Events

Coming up next week at the Automotive Linux Summit in Yokohama and virtually, Marius Vlad and Daniel Stone will present the latest on the AGL Wayland compositor, and the current state of graphics virtualization upstream.

Shifting to open gears for the Automotive Linux Summit

Seizing knowledge at Capitole du Libre

November 16, 2022 by Kara Bembridge  |   News & Events

Clear your schedules, this weekend's Capitole du Libre is calling your name for all things open source! Gathering in the "Pink City" of Toulouse, participants are welcome to attend with free admission from November 19 to 20 at the INP-ENSEEIHT.

Seizing knowledge at Capitole du Libre

Fully charged for electronica 2022

November 10, 2022 by Kara Bembridge  |   News & Events

Making our grand debut, Collabora will be attending electronica in Munich for the first time! Diving into the world of electronics alongside the leading examples of the industry, we're excited to partake on all fronts.

Fully charged for electronica 2022

Kernel 6.0: Start of a new series and dawn of Rust

October 14, 2022 by Shreeya Patel  |   News & Events

Collabora's contributions include mainlining the HEVC uAPI, adding VirtIO documentation, upstreaming MediaTek smartphones, and adding support for two new Chromebooks and for the Mali-G57 GPU in the Panfrost kernel driver.

Kernel 6.0: Start of a new series and dawn of Rust

HEVC uAPI mainlined

October 06, 2022 by Benjamin Gaignard  |   News & Events

The release of Linux 6.0 earlier this week brought a significant milestone: the H.265/HEVC user-space API was mainlined, the result of more than two years of efforts by our engineering team.

HEVC uAPI mainlined

Introducing NVK

October 04, 2022 by Jason Ekstrand  |   News & Events

Say hello to a brand new, open-source Vulkan driver for NVIDIA hardware in Mesa, written almost entirely from scratch using the new official headers from NVIDIA.

Introducing NVK

Weston 11.0: what's new, what's next

September 29, 2022 by Marius Vlad  |   News & Events

Announced earlier this week, Weston 11.0 brings a number of highlights including optimizations in the DRM-backend, color management infrastructure code and multiple RDP improvements.

Weston 11.0: what's new, what's next

Three conferences for the price of none!

September 29, 2022 by Kara Bembridge  |   News & Events

This year's X. Org Developer's Conference (XDC) is teaming up with WineConf and FOSS XR in Minneapolis at the University of St. Thomas' Opus Hall for a jam-packed three day event.

Three conferences for the price of none!

A team that grows together, builds together

September 27, 2022 by Kara Bembridge  |   News & Events

Adding a variety of expertise from across the globe, the departments of Core, Multimedia, Kernel, XR, People Operations, and DevOps now have more hands on deck. Discover a snapshot of our newest teammates!

A team that grows together, builds together

A busy, open source week in Dublin!

September 12, 2022 by Mark Filion  |   News & Events

Mere weeks after the debut of Open Source Summit Latin America, Dublin continues the collaborative momentum with the 2022 hybrid editions of Linux Plumbers Conference and Open Source Summit Europe!

A busy, open source week in Dublin!

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

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Upcoming Events

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

Ubuntu Summit

November 7-9, Prague, Czech Republic

Electronica

November 15-18, Munich, Germany

Capitole du Libre

November 19-20, Toulouse, France

NeurIPS

November 29 - December 1, New Orleans, USA

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