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The Linux terminal is no one-trick pony

tuxmachines.org - staro 4 ur 8 min

Welcome to another day of the Linux command-line toys advent calendar. If this is your first visit to the series, you might be asking yourself what a command-line toy even is. We’re figuring that out as we go, but generally, it could be a game, or any simple diversion that helps you have fun at the terminal.

Some of you will have seen various selections from our calendar before, but we hope there’s at least one new thing for everyone.

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AMD Adding STIBP "Always-On Preferred Mode" To Linux

Phoronix - staro 4 ur 25 min
Initially during the Linux 4.20 kernel merge window with the STIBP addition for cross-hyperthread Spectre V2 mitigation it was turned on by default for all processes. But that turned out to have a sizable performance hit so the behavior was changed to only turn it on for processes under SECCOMP or when requested via the PRCTL interface. However, AMD is landing a patch that for select CPUs will have an always-on mode as evidently that's preferred for some AMD processors...

Energy Model Management Framework Queued For Linux 4.21

Phoronix - staro 5 ur 32 min
A new framework queued for introduction with the Linux 4.21 kernel is the ARM-developed Energy Model Management Framework...

Radeon Software for Linux 18.50 Released - Just One Listed Change

Phoronix - staro 7 ur 12 min
The Radeon Software for Linux 18.50 driver release (a.k.a. "AMDGPU-PRO" 18.50) is now officially available..

Qt 3D Studio 2.2 Released With New Material System, Stereoscopic Rendering Preview

Phoronix - staro 8 ur 2 min
Released just one week after Qt 5.12 LTS, The Qt Company on Thursday published Qt 3D Studio 2.2 as the newest version of this development environment for designing 3D user interfaces and adding 3D content to Qt5 programs...

Valve's Steam Link For Raspberry Pi Now Available

Phoronix - staro 10 ur 40 min
After being announced last week, Valve's Steam Link application for the Raspberry Pi is now officially available...

today's leftovers

tuxmachines.org - Čet, 12/13/2018 - 23:46
  • Get notifications for your patches

    We are trialing out a new feature that can send you a notification when the patches you send to the LKML are applied to linux-next or to the mainline git trees.

  • A simple blank makes the difference

    OFX is the Open Financial eXchange protocol used by various financial institutions in a few countries. KMyMoney provides an OFX client implementation using the open source LibOFX library allowing users to import transactions directly from the bank’s server without using the detour through a web-browser and a downloaded file into the ledger of the application.

  • Fractal December'18 Hackfest (part 1)

    The Tuesday 11th started the second Fractal Hackfest. I've organized this hackfest in Seville, the city where I studied computer science and here I've a lot of friends in the University so is a good place to do it here.

    The weather was important too for the hackfest selection, in December Seville is a good choice because the weather is not too cold, we're having sunny days.

    The first day was a good day, thinking about some relevant issues and planning what we want to do. We talked about the work needed for the interface split, about the E2EE support, new features and the need for a new release.

    We're having some problems with the internet connection, because the University has a restricted network policy and we ask for the guess internet connection the Monday, but we're still waiting.

  • Unexpected fallout from /usr merge in Debian

    Back in 2011, Harald Hoyer and Kay Sievers came up with a proposal for Fedora to merge much of the operating system into /usr; former top-level directories, /bin, /lib, and /sbin, would then become symbolic links pointing into the corresponding subdirectories of /usr. Left out of the merge would be things like configuration files in /etc, data in /var, and user home directories. This change was aimed at features like atomic upgrades and easy snapshots. The switch to a merged /usr was successful for Fedora 17; many other distributions (Arch, OpenSUSE, Mageia, just to name a few) have followed suit. More recently, Debian has been working toward a merged /usr, but it ran into some surprising problems that are unique to the distribution.

    Debian and its derivatives are definitely late to the /usr merge party. Systems running Debian testing that were initially installed before June 2018 still have /bin, /sbin, and /lib as normal directories, not as symbolic links. The same applies to Ubuntu 18.10. But both Debian and Ubuntu want to make the switch to a merged /usr. Debian tried, but it hit something completely unexpected.

    The Debian /usr merge history started in 2016, when Marco d'Itri got the usrmerge package into Debian unstable. This package contains a Perl script that converts an existing system into the state with a merged /usr. Also, a change was made to the debootstrap program (which installs a Debian system into a chroot), so that it could create the needed symbolic links by itself before installing any packages. The end result is the same in both cases.

    [...]

    The Debian package sed also has /bin/sed, not /usr/bin/sed. In the bug report, the problem is treated like a one-off issue, to be solved by a rebuild. However, on the debian-devel mailing list, Ian Jackson quickly pointed out that the problem is, in fact, due to /usr merge on the build daemons. He suggested that the change should be reverted. Dirk Eddelbuettel seconded that suggestion, and noted that he expects "much more breakage to follow". Indeed, similar problems were triggered in sympow, pari, and monitoring-plugins. Other bugs of this nature can be found by searching the Debian bug tracking system for a special tag (but this search also finds other kinds of issues).

    [...]

    The discussion is still in progress, though; no consensus has been reached. A bug was filed against debootstrap by Jackson to revert the change to merge by default for the next release of Debian. Due to the disagreement of the debootstrap maintainer to the proposed change, Jackson reassigned the bug to the Debian Technical Committee, which is the ultimate authority for resolving otherwise unresolvable technical disputes within Debian. There is also a request from the Debian backports FTP master that the default should be the same in Debian stable backports and in Debian testing. Emilio Pozuelo Monfort, a member of the release team, also spoke in favor of reverting to non-merged /usr in new installations.

    It is impossible to predict now how the Technical Committee will rule. In the worst case for /usr-merge proponents, proper introduction of a merged /usr into Debian may be delayed by a few more years. But, if it votes for keeping the status quo, new end-user systems in the next stable release of Debian will have merged /usr, old but upgraded ones won't, and the build daemons will reliably build packages suitable for both cases, just like what's planned for Ubuntu 19.04. No flag day is needed in this scenario, so it would follow the best Debian traditions of not forcing transitions onto users.

  • Compiz: Ubuntu Desktop's little known best friend

    The best part is that it takes no time at all to get up and running! I’ll show you how to transform Ubuntu into a desktop that is functionally similar to Mac.
     

  • How to use TOAD The Open Source Android Deodexer

    Deodexing Android can be a time-consuming process which involves pulling /system files from your Android device, deodexing them using PC tools, and installing them back on your phone. Not to mention that whenever Google releases a new Android version, the process for deodexing ROMs alters – which means tools for deodexing need to play catchup. Many deodexing tools have become defunct due to lack of update from the developers.

    A new tool called TOAD (The Open Source Android Deodexer) has been released, which aims to not only be incredibly easy, its open-source nature allows the development community to keep it updated with the latest deodexing methods. TOAD utilizes batch files for processing odexed files, so new batch files can easily be added or modified by the development community.

  • Linux group plans show and tell

    The Linux Users’ Group of Davis presents Open Source Computing “Show and Tell” event, an informal open night to talk about and demonstrate programs, computer projects or tricks and tips.

    Feel free to bring something to show or tell for 10 minutes, from a Raspberry Pi project to tools or utilities that you find handy. Everyone is welcome to join in the fun, whether you’re a hobbyist, coder, enthusiast or sysadmin.

  • Windows 10 tip: Run Ubuntu Linux in an enhanced Hyper-V session [Ed: When Microsoft's Ad Bot (Ad Bought?) covers Ubuntu it's about putting it as a slave of Vista 10, complete with back doors]
  • ​MS-Linux? Lindows? Could Microsoft release a desktop Linux? [Ed: It’s like CBS wants to just hire pro-Microsoft slants; propaganda and clickbait.]
  • How Facebook Made a Universal Open Source Language for the Web

    THE CODE THAT runs the web is a melting pot of programming languages and technologies. JavaScript, the most popular language on the web, is the standard for writing code that runs in your browser. But the server side is much more diverse. Java (no relationship to JavaScript) remains popular, as do PHP, Python, and Ruby. Mobile app developers, meanwhile, have their own preferred languages, like Kotlin for writing Android apps or Apple's Swift for iOS.

  • C Programming Tutorial Part 2 - Preprocessors

    In the first part of our ongoing C programming tutorial series, we briefly touched on the preprocessing stage. In this tutorial, we will discuss it in a little more detail so that you have a basic idea about it before learning other C programming aspects.

  • Microsoft patches 'dangerous' zero-day already being exploited by [cracking] groups

    This vulnerability in kernel image ntoskrnl.exe was reported to Microsoft on 29 October by security vendor Kasperky Lab. Listed as CVE-2018-8611 and classified as 'important', it is a local privilege escalation bug. Kaspersky Lab researchers say it has already been exploited by [cracking] groups FruityArmor and SandCat.

  • Security updates for Thursday

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Games: Epic Games, DOOM and Lots of GNU/Linux Stuff

tuxmachines.org - Čet, 12/13/2018 - 23:27
  • Epic Games’ New Cross-Platform Services Will Be Given to Developers for Free

    Fortnite, one of the biggest battle royale games of this year, is known for its extended cross-platform capabilities. Developer Epic Games, who recently launched their own digital game store called Epic Games Store, has announced that they are working on cross-platform services that will launch for free in 2019.

  • Game Engine Black Book: DOOM

    I had the pleasure of proof-reading an earlier version of the Doom book and it's a real treasure. It goes into great depth as to the designs, features and limitations of PC hardware of the era, from the 386 that Wolfenstein 3D targetted to the 486 for Doom, as well as the peripherals available such as sound cards. It covers NeXT computers in similar depth. These were very important because Id Software made the decision to move all their development onto NeXT machines instead of developing directly on PC. This decision had some profound implications on the design of Doom as well as the speed at which they were able to produce it. I knew very little about the NeXTs and I really enjoyed the story of their development.

    Detailed descriptions of those two types of personal computer set the scene at the start of the book, before Doom itself is described. The point of this book is to focus on the engine and it is explored sub-system by sub-system. It's fair to say that this is the most detailed description of Doom's engine that exists anywhere outside of its own source code. Despite being very familiar with Doom's engine, having worked on quite a few bits of it, I still learned plenty of new things. Fabien made special modifications to a private copy of Chocolate Doom in order to expose how various phases of the renderer worked. The whole book is full of full colour screenshots and illustrations.

  • Some thoughts on Counter-Strike: Global Offensive’s Danger Zone, the new Battle Royale mode

    Now that the dust has settled and I’ve been able to put plenty of time into the new Danger Zone mode for Counter-Strike: Global Offensive, I have some more thoughts.

    For those not clued up what the fuss is, it's a little like Fortnite, PLAYERUNKNOWN'S BATTLEGROUNDS (PUBG) and a few others like that. You (or you and some friends) and everyone else drop into the map from the air, then it's a mad race to be the last person standing. Unlike Fortnite there's no building involved, the game itself is quite streamlined overall so it's closer to PUBG than anything else.

  • 15 Best Linux Games on Steam

    Before Valve ported their popular Steam gaming platform to Linux, gaming on the operating system seemed like a hopeless pursuit. Most Linux gaming came in the form of a handful of open source games or messy Wine configurations to get Windows games to work, albeit at a huge performance hit. Now, the picture is much different, thanks in large part to Steam.

    These games mark the best the platform currently has to offer natively for Linux. Keep an eye out, though, because that's all changing again with Steam's new Steam Play feature that allows you to play Windows games on Linux the same as you would a native game, changing the picture drastically again.

  • Grapple Force Rena Hits Linux and Windows PCs

    GalaxyTrail's pedigree has seen them craft a modern-day classic side-scrolling platformer in Freedom Planet, and now they're back with Grapple Force Rena. This blend of traditional platformer and Bionic Commando takes the usual "young hero saves the world" plot and mixes things up a bit. Rena's a little delusional and as such, tries to recruit all of her friends to help her save the world. She doesn't believe that she can do it all by herself, and is dismayed to find that they don't have powers as she does.

  • Flash Point: Fire Rescue, the tough strategy game about saving people has new levels and a tutorial

    The Training Update for Flash Point: Fire Rescue just released, with an aim to help people learn the ropes while also add in more levels to play.

  • Hand of Fate 2 - A Cold Hearth DLC now available with a new companion

    Hand of Fate 2, the excellent mix of action-RPG combat with a board game has another DLC available named A Cold Hearth.

  • Humble Store are doing a little sale with some Linux titles plus LEGO The Hobbit is free

    Humble Store have a WB Games Sale live right now which has a few nice Linux games going cheap, plus you can grab LEGO The Hobbit which works with Steam Play (ProtonDB has a bunch of "Platinum" rating entries for it) free for 48 hours. I gave it a brief run myself and sure enough, it works well.

  • The GOG winter sale is officially here, with plenty of Linux games and a giveaway

    GOG have officially unwrapped a present in the form of a winter sale which comes with a free copy of Full Throttle Remastered for a limited time.

  • The WWI FPS game 'Verdun' just got a big free expansion, new UI in testing

    News coming in from the Western Front, Blackmill Games and M2H have released a big free expansion to their First World War shooter Verdun. It's quite a big one too, they haven't been focused solely on their other FPS game Tannenberg which is nice to see!

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Vulkan Memory Allocator 2.2 Released Along With RGP 1.4

Phoronix - Čet, 12/13/2018 - 22:43
In addition to AMD's year-end Radeon driver updates issued today, their GPUOpen crew has also carried out some new open-source software releases...

Radeon ROCm 1.9.1 vs. NVIDIA OpenCL Linux Plus RTX 2080 TensorFlow Benchmarks

tuxmachines.org - Čet, 12/13/2018 - 20:37

Following the GeForce RTX 2080 Linux gaming benchmarks last week with now having that non-Ti variant, I carried out some fresh GPU compute benchmarks of the higher-end NVIDIA GeForce and AMD Radeon graphics cards. Here's a look at the OpenCL performance between the competing vendors plus some fresh CUDA benchmarks as well as NVIDIA GPU Cloud TensorFlow Docker benchmarks.

This article provides a fresh look at the Linux GPU compute performance for NVIDIA and AMD. On the AMD side was the Linux 4.19 kernel paired with the ROCm 1.9.1 binary packages for Ubuntu 18.04 LTS. ROCm continues happily running well on the mainline kernel with the latest releases, compared to previously relying upon the out-of-tree/DKMS kernel modules for compute support on the discrete Radeon GPUS. ROCm 2.0 is still supposed to be released before year's end so there will be some fresh benchmarks coming up with that OpenCL 2.0+ implementation when the time comes. The Radeon CPUs tested were the RX Vega 56 and RX Vega 64 as well as tossing in the R9 Fury for some historical context.

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KDE Applications 18.12 Are Waiting for You

tuxmachines.org - Čet, 12/13/2018 - 20:34

It's that time of the year again. Everyone is in a festive mood and excited about all the new things they're going to get. It's only natural, since it's the season of the last KDE Applications release for this year!

With more than 140 issues resolved and dozens of feature improvements, KDE Applications 18.12 are now on its way to your operating system of choice. We've highlighted some changes you can look forward to.

Also: KDE Applications 18.12 Released With File Manager Improvements, Konsole Emoji

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Nvidia unveils cheaper 4GB version of its Jetson TX2 and begins shipping its next-gen Xavier module

tuxmachines.org - Čet, 12/13/2018 - 20:30

Nvidia announced a lower-cost 4GB version of its Linux-driven Jetson TX2 module with half the RAM and eMMC and has begun shipping its next-gen Jetson AGX Xavier.

Nvidia will soon have three variants of its hexa-core Arm Jetson TX2 module: the original Jetson TX2, the more embedded, industrial temperature Jetson TX2i , and now a new Jetson TX2 4GB model. The chip designer also announced availability of its next-gen, robotics focused Jetson AGX Xavier module (see farther below).

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Radeon Software Adrenalin 2019 Rolls Out While Linux Users Should Have AMDGPU-PRO 18.50

Phoronix - Čet, 12/13/2018 - 19:34
AMD today released their Radeon Software Adrenalin 2019 Edition geared for Windows gamers while Linux users should have AMDGPU-PRO 18.50 available shortly for those wanting to use this hybrid Vulkan/OpenGL driver component that does also feature the AMDGPU-Open components too in their stable but dated composition...

[$] Linux in mixed-criticality systems

LWN.net - Čet, 12/13/2018 - 18:23
The Linux kernel is generally seen as a poor fit for safety-critical systems; it was never designed to provide realtime response guarantees or to be certifiable for such uses. But the systems that can be used in such settings lack the features needed to support complex applications. This problem is often solved by deploying a mix of computers running different operating systems. But what if you want to support a mixture of tasks, some safety-critical and some not, on the same system? At a talk given at LinuxLab 2018, Claudio Scordino described an effort to support this type of mixed-criticality system.

Radeon ROCm 1.9.1 vs. NVIDIA OpenCL Linux Plus RTX 2080 TensorFlow Benchmarks

Phoronix - Čet, 12/13/2018 - 17:30
Following the GeForce RTX 2080 Linux gaming benchmarks last week with now having that non-Ti variant, I carried out some fresh GPU compute benchmarks of the higher-end NVIDIA GeForce and AMD Radeon graphics cards. Here's a look at the OpenCL performance between the competing vendors plus some fresh CUDA benchmarks as well as NVIDIA GPU Cloud TensorFlow Docker benchmarks.
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