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Updated: 43 min 21 sec ago

Understanding computer vision and AI, part 1

Thursday 13th of August 2020 10:00:00 AM
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.

Testing Weston DRM/KMS backends with virtme and VKMS

Friday 7th of August 2020 08:50:00 AM
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.

Kernel 5.8: Collabora's biggest & most significant contributions yet!

Wednesday 5th of August 2020 09:44:00 AM
The ability for a relatively small software consultancy to contribute at this level demonstrates a fantastic improvement in vendors' mindset when it comes to working Open First and providing mainline support out-of-box as early as possible.

Lighthouse positional tracking in Monado with libsurvive

Friday 17th of July 2020 11:02:00 AM
HTC Vive (Pro) and Valve Index hardware users can now experiment with positional tracking in Monado, thanks to the implementation of a libsurvive driver using the libsurvive library developed by Charles Lohr, David Berger and many contributors.

WirePlumber 0.3 released, now ready for the desktop

Thursday 16th of July 2020 09:05:00 AM
It is with great pleasure that we announce the availability of WirePlumber (the PipeWire session manager) version 0.3.0. This release brings support for desktop use cases and is a working drop-in replacement for PipeWire's example session manager.

An introduction to Linux kernel initcalls

Tuesday 14th of July 2020 12:09:00 PM
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.

Deep dive into OpenGL over DirectX layering

Thursday 9th of July 2020 02:07:00 PM
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.

Welcoming five new Collaborans!

Thursday 9th of July 2020 11:21:00 AM
Despite the many obstacles brought on by the pandemic, Collabora continues to build and strengthen its engineering and administration teams for the road ahead. Join us in welcoming Angelica, Raghavendra, Doug, Italo and Theodotos!

Monado: Multi-application support with XR_EXTX_overlay

Tuesday 30th of June 2020 02:17:00 PM
The recent improvements in Monado like out of process compositing and multi-layer rendering released with v0.2 prepared the requirements to implement OpenXR's XR_EXTX_overlay extension.

Using syzkaller, part 4: Driver fuzzing

Friday 26th of June 2020 07:08:00 AM
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.

Cross building Rust GStreamer plugins for the Raspberry Pi

Tuesday 23rd of June 2020 09:57:00 AM
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.

Embedded Linux & Open Source take the virtual stage

Thursday 18th of June 2020 08:06:00 AM
Collabora will be presenting on five separate occasions during the virtual editions of Embedded Linux Conference North America and Open Source Summit North America, taking place later this month.

Generating MPEG-DASH streams for Open Source adaptive streaming with GStreamer

Friday 12th of June 2020 11:30:00 AM
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.

Bifrost meets GNOME: Onward & upward to zero graphics blobs

Friday 5th of June 2020 11:44:00 AM
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.

Kernel 5.7: Forging ahead, despite COVID-19

Thursday 4th of June 2020 11:21:06 AM
This latest release is the first to contain development work accomplished amid the lockdown measures. Despite these significant changes, Collaborans have also been steadfast in their contributions, with multiple projects progressing.

Google Summer of Code 2020

Monday 1st of June 2020 01:56:00 PM
Coding hss begun for this year's Google Summer of Code (GSoC) projects, announced earlier last month. The 2020 edition selected 1,199 students from 66 countries, to work with 199 mentoring organizations over the course of the summer.

Monado OpenXR runtime development gaining momentum: version 0.2, multi-layer support & more!

Friday 29th of May 2020 11:47:19 AM
With the excellent (online) edition of Augmented World Expo 2020 in full swing this week, what better time to announce version 0.2 of the Monado OpenXR runtime for Linux. It's been a very busy three months since the last Monado developer update!

Using regmaps to make Linux drivers more generic

Wednesday 27th of May 2020 08:18:00 AM
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.

Laval Virtual: OpenXR master class in VR!

Monday 18th of May 2020 04:22:00 PM
A few weeks ago, Ryan Pavlik presented "Unifying Reality: Building Experiences with OpenXR", a master class on OpenXR, the open standard API for building VR and AR experiences that work across devices, now and into the future.

Cross-compiling with gst-build and GStreamer

Friday 15th of May 2020 01:50:00 PM
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.

More in Tux Machines

Optimised authentication methods for Ubuntu Desktop

Still counting on passwords to protect your workstation? When set up properly, alternatives to passwords provide a streamlined user experience while significantly improving security. These alternative authentication methods can also easily be combined to create a custom and adaptive authentication profile. This whitepaper introduces three popular authentication methods that provide a solid alternative to passwords. Perhaps you’d like to configure your laptop for login using a YubiKey hardware token connected to a dock. Another option could be to login with a Duo push notification when not connected to the dock, but use a Google Authenticator one-time password when no network is available. Maybe you need a separate hardware token just for ssh authentication, and you always need to keep a long, complex password for emergency authentication should all other methods fail. All of these scenarios can be easily configured within Ubuntu. Read more

Open Hardware: Arduino, RISC-V and 96Boards

  • Arduino-controlled robot arm is ready to play you in a game of chess

    If you’re tired of playing chess on a screen, then perhaps you could create a robotic opponent like Instructables user Michalsky. The augmented board runs micro-Max source code, enabling chess logic to be executed on an Arduino Mega with room for control functions for a 6DOF robotic arm. The setup uses magnetic pieces, allowing it to pick up human moves via an array of 64 reed switches underneath, along with a couple shift registers. The Mega powers the robot arm accordingly, lifting the appropriate piece and placing it on the correct square.

  • New RISC-V CTO On Open Source Chip Architecture’s Global Data Center Momentum

    With more big international players on board, the foundation's new head of technology sees signs of "state of the art moving forward."

  • Snapdragon 410 based 96Boards CE SBC gets an upgrade

    Geniatech has launched a Linux-ready, $109 “Developer Board 4 V3” compliant with 96Boards CE that offers a Snapdragon 410E, GbE, 3x USB, 802.11ac, GPS, and-25 to 70°C support. Geniatech has released a V3 edition of its 96Boards CE form-factor Developer Board 4 SBC, the third update of the Development Board IV we covered back in 2016. Starting at $109, the Developer Board 4 V3 still runs Linux, Android, and Windows 10 IoT Core on Qualcomm’s 1.2GHz, quad -A53 Snapdragon 410m, although it has been upgraded to the 10-year availability Snapdragon 410E. Geniatech also sells a line of Rockchip based SBCs, among other embedded products.

Audiocasts/Shows: Linux in the Ham Shack and Linux Headlines

  • LHS Episode #360: Zapped

    Welcome to the 360th episode of Linux in the Ham Shack. In this short-topic show, the hosts discuss 1.2GHz distance records, a hybrid antenna for geosynchronous satellite operation, data mode identification for your smart phone, being pwned, Ubuntu 20.04.1, LibreOffice, HamClock and much more. Thanks for listening and hope you have a great week.

  • LHS Episode #361: The Weekender LIV

    It's time once again for The Weekender. This is our bi-weekly departure into the world of amateur radio contests, open source conventions, special events, listener challenges, hedonism and just plain fun. Thanks for listening and, if you happen to get a chance, feel free to call us or e-mail and send us some feedback. Tell us how we're doing. We'd love to hear from you.

  • 2020-08-14 | Linux Headlines

    Google could be extending its Firefox search royalty deal, PyPy leaves the Software Freedom Conservancy, Ubuntu puts out a call for testing, Linspire removes snapd support, Microsoft showcases its open source contributions, and Facebook joins The Linux Foundation.

Python Programming

  • Django Weblog: DjangoCon Australia 2020: Schedule live and tickets on sale

    The 8th DjangoCon AU was scheduled to be run in Adelaide, South Australia this year. It's been moved to an online event and will take place on September 4th. DjangoCon AU is organized as a specialist track as part of PyConline AU. The schedule — though shorter than in previous years — is packed with talks about best practices, communities, contributions, and the present and future of Django. Since the event was due to run in Adelaide, the event is running in Australian Central Standard Time, UTC+9:30, and DjangoCon AU will start at 3:45pm ACST. This link shows when the DjangoCon AU Opening address starts for all the DjangoCon timezones..

  • Return how many times each letter shows up in the string by using an asterisk (*)

    Hello people, in this article we will solve the below python problem. You receive the name of a city as a string, and you need to return a string that shows how many times each letter shows up in the string by using an asterisk (*).

  • The Real Python Podcast – Episode #22: Create Cross-Platform Python GUI Apps With BeeWare

    Do you want to distribute your Python applications to other users who don't have or even use Python? Maybe you're interested in seeing your Python application run on iOS or Android mobile devices. This week on the show we have Russell Keith-Magee, the founder and maintainer of the BeeWare project. Russell talks about Briefcase, a tool that converts a Python application into native installers on macOS, Windows, Linux, and mobile devices.

  • Python vs R: Which is Good for Machine Learning?

    If you want to build a machine learning project and are stuck between choosing the right programming language to build it, you know you have come to the right place. This blog will not only help you understand the difference between the two languages namely: Python and R; but also help you know which language has an edge over one another in multiple aspects. So without wasting a single moment, let’s dive into it!

  • Freezegun - Real Joy for Fake Dates in Python

    If you've ever tested code involving dates and times in Python you've probably had to mock the datetime module. And if you've mocked the datetime module, at some point it probably mocked you back when your tests failed.

  • Mastering the SQLite Database in Python

    In this tutorial, we shall see some advanced tasks associated with the SQLite database from Python. We shall see topics such as inserting images, Listing the tables, Backup a database, Dumping Rollback in SQLite, Deleting records from a table, Dropping a table, SQLite database exceptions, and more.

  • PSF GSoC students blogs: Week 6 Blog Post
  • Top 10 Important Uses cases of Python in the Real World

    These top 10 Python uses cases in the real world prove how effective the programming language is. Read the real life uses of Python and implement it in your organization.