Language Selection

English French German Italian Portuguese Spanish

today's leftovers

Filed under
Misc
  • Avoid Unnecessary Reboots: Set up the Livepatch Service on Ubuntu

    Rebooting should only be done if absolutely necessary, especially on servers. In this video, I show the process of enabling Canonical's Livepatch service, which will patch the Linux kernel automatically and allow you to avoid (most) reboots when the kernel updates.

  • Linux Action News 140

    Are we overloaded with open source licenses? We consider a simpler future. Results from the Debian init vote are in, and why Amazon’s new open source project might be worth checking out.

  • Phoronix Test Suite 9.4 Milestone 1 Released

    The first development release of Phoronix Test Suite 9.4-Vestby is now available for evaluation.

    Phoronix Test Suite 9.4-Vestby is the Q1'2020 feature update due out in about one month's time. With today's Milestone 1 release is the first batch of improvements arriving while more work should be landing over the next few weeks.

    With Phoronix Test Suite 9.4 Milestone 1 are a variety of low-level improvements, external dependency updates, various new helper string options for test profiles, pass/fail graph formatting improvements, Phodevi software/hardware detection improvements, support for the forthcoming Linux "drivetemp" ATA temperature driver as another fallback in monitoring drive temperatures, and other refinements and fixes.

  • Benchmarks Of LLVM Clang 6.0 Through Clang 10.0 Compilers

    At the end of 2019 I ran some GCC 5 through GCC 10 compiler benchmarks while here are the similar tests conducted on the LLVM side for seeing how the Clang C/C++ compiler performance has evolved over the past few years.

    This round of testing was done on LLVM Clang 6.0 through LLVM Clang 9.0 while building in the release modes and also testing with LLVM Clang 10.0 as the development code as of December. All the CFLAGS/CXXFLAGS remained the same throughout testing.

  • The next generation of low-cost, open-source oceanographic instruments is here! Meet the OpenCTD rev 2!

    In 2013, Kersey Sturdivant and I embarked upon a quixotic quest to create an open-source CTD — the core tool of all oceanographic research that measures the baseline parameters of salinity, temperature, and depth. We weren’t engineers; neither of us had any formal training in electronics or sensing. And, full confession, we weren’t (and still aren’t) even oceanographers! What we were were post-doc marine ecologists working with tight budgets who saw a desperate need among our peers and colleagues for low-cost alternatives to insurmountably expensive equipment. And we had ties to the growing Maker and DIY electronics movements: Kersey through his work developing Wormcam and me through my involvement with OpenROV.

  • Wi-Fi 6 is finally here

    The biggest leap forward for Wi-Fi 6 at this year’s conference came from affordable Wi-Fi routers. Last year, we saw lots of promises of routers coming soon, but when those routers showed up in stores, they tended to arrive at the highest of price points. This makes sense — Wi-Fi 6 is new tech, so of course it ended up in the highest end routers first. But widespread adoption depends on Wi-Fi 6 making it into the lower priced routers the majority of people actually buy. These new routers aren’t necessarily better than last year’s, but they offer a meaningful improvement upon the cheaper models they’re replacing.

More in Tux Machines

today's howtos

Devices/Embedded With GNU/Linux

Easy Librem 5 App Development: Flashlight

In my first post on easy application development on the Librem 5 I discussed how to turn a simple shell script that takes a screenshot into a full graphical app with only a few extra lines of code. In this post I will follow up with an even simpler application that took about twenty minutes to write with much of that time involved in reading documentation. My Bright Idea The interesting thing about smart phones is how many other devices they have replaced beyond a regular phone. For instance, there used to be a market for small, pocket-sized digital cameras, but now many people just use the cameras on their smart phones. While some people still do keep a pocket flashlight with them, many people just use the light on their smart phone. I realized that a flashlight app would be another great way to showcase just how easy it is to develop applications for the Librem 5. As applications go the requirements are pretty simple: you need a button to turn on the light, a button to turn off the light, and a button to close the app. Read more

LibreOffice Writer Articles and Improvements

  • Two alternatives to Microsoft Word that are free and customizable

    If you're looking for an open-source office suite, LibreOffice is the software package for you. Its word processing program is LibreOffice Writer--which, incidentally, this story was written with, so I can attest to its excellence. You're able to choose from different fonts and text styles, embed images and figures, and use a variety of other functions you'd expect from its paid competition. It can save files in an Open Document Format (ODF), a number of Word formats, and export your work as a PDF for wide-ranging compatibility.

  • Improved rotated text handling in Writer's table rows with automatic height

    Writer now has better support for rotated text in tables containing rows with automatic height. This post also presents two related fixes. First, thanks Otevřená města who made this work by Collabora possible. [...] Before diving into improved rotated text handling, first a continuous section break import problem (tdf#128605) was fixed: this was a case when we created a new page style, but only a new section was intended.