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KDE

KDE 5 (Plasma 5.2.0) available for Slackware -current

Filed under
KDE
Slack

And yes – let me get this clear right from the start: this Plasma 5.2.0 desktop environment will replace the KDE 4 packages you have installed.

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Older: Waiting for KDE 5 (Plasma 5)?

Plasma 5.2 Is Beautiful and Featureful

Filed under
KDE

Today KDE releases Plasma 5.2. This release adds a number of new components, many new features and many more bugfixes.

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Why screen lockers on X11 cannot be secure

Filed under
KDE
Security

Today we released Plasma 5.2 and this new release comes with two fixes for security vulnerabilities in our screen locker implementation. As I found, exploited, reported and fixed these vulnerabilities I decided to put them a little bit into context.

The first vulnerability concerns our QtQuick user interface for the lock screen. Through the Look and Feel package it was possible to send the login information to a remote location. That’s pretty bad but luckily also only a theoretical problem: we have not yet implemented a way to install new Look and Feel packages from the Internet. So we found the issue before any harm was done.

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Also: Plasma 5.2 for openSUSE? You bet!

Kubuntu 15.04 Alpha 2 Is the Most Exciting Release in a Long Time – Screenshot Tour

Filed under
KDE
Ubuntu

Kubuntu 15.04 Alpha 2 (Vivid Vervet), a Linux distribution based on Ubuntu and the KDE desktop environment, is now available for download and testing. The developers have made quite a few substantial improvements, including to the Plasma desktop.

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Plasma 5.2 – The Quintissential Breakdown

Filed under
KDE

KDE is one of the oldest open-source desktop projects which can be found today, and over the years it has established a rich history of highs and lows. During some points it has been the undisputed ruler of the desktop world, while other times it had fallen behind or faced hard trials.

A memory everything but forgotten, just over 6 years ago KDE tore itself apart in spectacular fashion to assemble itself anew. Brave users who wandered through the rubble and wreckage saw developers rebuild the KDE before their eyes, witnessing the birth of ‘Plasma Desktop’ and it’s sister project ‘KDE Development Platform’. It was universally understood that this twisted gnarled creature of a computing experience was both hideous yet full of potential, and over 5 years of refining Plasma it had struggled, crawled, hobbled, walked, run, and eventually mature into a fine desktop.

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Manjaro KDE 0.9.0 Pre1 Provides a Gorgeous and Unique KDE Experience – Gallery

Filed under
GNU
KDE
Linux

Manjaro KDE is a Linux distribution that uses snapshots of the Arch Linux repositories and a custom version of KDE. The developers have just pushed version 0.9.0 Pre1 (Bellatrix 0.9.0) out the door and they made quite a few improvements.

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Kolab Enterprise 14 Released with Advanced Tagging and Notes

Filed under
KDE

Following a month of usage at a group of pre-selected customers, Kolab Systems is happy to announce general availability for Kolab Enterprise 14. This latest feature release of Kolab Enterprise will be supported until 2019 and packs a whole set of new capabilities including tags, notes, better resource management, task delegation capabilities, usability improvements for deployments with very large numbers of shared groupware folders and much more.

Furthermore Kolab Systems is happy to once again extend the list of supported platforms to include Enterprise Linux 7 and Debian 7.0 "Wheezy". This release is accompanied by the launch of the brand new web site kolabenterprise.com to go hand in hand with kolabsystems.com.

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KWin on speed

Filed under
KDE

With the 5.2 release basically done, I decided to do some performance investigation and optimizations on KWin last week. From time to time I’m running KWin through valgrind’s callgrind tool to see whether we have some expensive code paths. So far I hadn’t done that for the 5.x series. Now after the switch to kdecoration2 I was really interested in the results as in the past rendering the decoration used to be a bottle neck during our compositing rendering loop.

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Fedora 22 Will Aim To Use Plasma 5 For Its KDE Desktop Experience

Filed under
KDE
Red Hat

For KDE users on Fedora, the Fedora 22 release is seeking to focus on the still-maturing Plasma 5 shell that's powered by KDE Frameworks 5 and Qt5.

An in-progress change proposal for Fedora 22 is to use Plasma 5 (and KF5/Qt5) with the latest KDE components to be fully-packaged in time for F22, an upgrade path be provided from KDE 4, and to retire any KDE 4 packages in Fedora that aren't compatible with the "KDE 5" work.

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Shadow Mapping in Qt3D 2.0

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KDE

One of the biggest driving factors behind the design of Qt3D 2.0 is the ability to configure the renderer in order to accommodate custom rendering techniques. In this blog post I will explain how to render a scene in Qt3D with shadows.

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More in Tux Machines

Amazon Linux 2 - Who nicked my cheese?

So far, it's a relatively benign, easy introduction to a new operating system that blends the familiar and new in a timid package. Perhaps that's the goal, because a radical offering would right away scare everyone. Amazon Linux 2 is an appealing concept, as it gives users what Red Hat never quite did (yet) - A Fedora-like bleeding-edge tech with the stability and long-term support of the mainstay enterprise offering. But then, it also pulls a Debian/Ubuntu stunt by breaking ABI, so it will be cubicle to those who enjoying living la vida loco (in their cubicle or open-space prison). Having lived and breathed the large-scale HPC world for many years, I am quite piqued to see how this will evolve. Performance, stability and ease of use will be my primary concerns. Then, is it possible to hook up a remote virtual machine into the EC2 hive? That's another experiment, and I'd like to see if scaling and deployment works well over distributed networks. Either way, even if nothing comes out of it, Amazon Linux 2 is a nice start to a possibly great adventure. Or yet another offspring in the fragmented family we call Linux. Time will tell. Off you go. Cloud away. Read more

Updates From OpenIndiana and LibreOffice (Projects That Oracle Discarded)

  • Migration to GCC 6.4 as userland compiler
    Modulo some minor details, the transition of our userland to GCC 6 is complete.
  • OpenIndiana Has Upgraded To The GCC 6 Compiler
    The OpenSolaris/Illumos-based OpenIndiana operating system has finally moved past GCC 4.9 as its base user-land compiler and is now using GCC 6.4. This comes while GCC 8.1 should be officially released in the next few weeks and they are already targeting GCC 7.3.0 as their next illumos-gate compiler.
  • LibreOffice 6.0 Open-Source Office Suite Passes 1 Million Downloads Mark
    The Document Foundation announced recently that its LibreOffice 6.0 open-source and cross-platform office suite reached almost 1 million downloads since its release last month on January 31, 2018. That's terrific news for the Open Source and Free Software community and a major milestone for the acclaimed LibreOffice office suite, which tries to be a free alternative to proprietary solutions like Microsoft Office. The 1 million downloads mark was reached just two weeks after the release of LibreOffice 6.0, which is the biggest update ever of the open-source office suite adding numerous new features and enhancements over previous versions.

FreeBSD Finally Gets Mitigated For Spectre & Meltdown (and Hugs)

  • FreeBSD Finally Gets Mitigated For Spectre & Meltdown
    Landing in FreeBSD today was the mitigation work for the Meltdown and Spectre CPU vulnerabilities. It's taken a few more weeks longer than most of the Linux distributions to be re-worked for Spectre/Meltdown mitigation as well as DragonFlyBSD, but with FreeBSD Revision 329462 it appears their initial fixes are in place. There is Meltdown mitigation for Intel CPUs via a KPTI implementation similar to Linux, the Kernel Page Table Isolation. There is also a PCID (Process Context Identifier) optimization for Intel Westmere CPUs and newer, just as was also done on Linux.
  • FreeBSD outlaws virtual hugs
  • AsiaBSDCon 2018 Conference Programme

Linux: To recurse or not

Linux and recursion are on very good speaking terms. In fact, a number of Linux command recurse without ever being asked while others have to be coaxed with just the right option. When is recursion most helpful and how can you use it to make your tasks easier? Let’s run through some useful examples and see. Read more