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Open Source

NVIDIA Begins Supplying Open-Source Register Header Files 77 77

An anonymous reader writes: NVIDIA's latest mark of their newly discovered open-source kindness is beginning to provide open-source hardware reference headers for their latest GK20A/GM20B Tegra GPUs while they are working to also provide hardware header files on their older GPUs. These programming header files in turn will help the development of the open-source Nouveau driver as up to this point they have had to do much of the development via reverse-engineering. Perhaps most interesting is that moving forward they would like to use the Nouveau kernel driver code-base as the primary development environment for new hardware.
Operating Systems

Linux 4.1 Kernel Released With EXT4 Encryption, Performance Improvements 115 115

An anonymous reader writes: The Linux 4.1 kernel has been announced and its release brings expanded features for the Linux kernel including EXT4 file-system encryption, open-source GeForce GTX 750 support, performance improvements for Intel Atom / Bay Trail hardware, RAID 5/6 improvements, and other additions.
Intel

How Today's Low-Power X86 & ARM CPUs Compare To Intel's Old NetBurst CPUs 77 77

An anonymous reader writes: In trying to offer a unique look at how Intel x86 CPU performance has evolved since their start, Phoronix celebrated their 11th birthday by comparing modern CPUs to old Socket 478 CPUs with the NetBurst Celeron and Pentium 4C on an Intel 875P+ICH5R motherboard. These old NetBurst processors were compared to modern Core and Atom processors from Haswell, Broadwell, Bay Trail and other generations. There were also some AMD CPUs and the NVIDIA Tegra K1 ARM processor. Surprisingly, in a few Linux tests the NetBurst CPUs performed better than AMD E-Series APUs and an Atom Bay Trail. However, for most workloads, the 45+ other CPUs tested ended up being multiple times faster; for the systems where the power consumption was monitored, the power efficiency was obviously multiple times better.
Intel

Intel Skylake & Broxton Graphics Processors To Start Mandating Binary Blobs 193 193

An anonymous reader writes: Intel has often been portrayed as the golden child within the Linux community and by those desiring a fully-free system without tainting their kernel with binary blobs while wanting a fully-supported open-source driver. The Intel Linux graphics driver over the years hasn't required any firmware blobs for acceleration, compared to AMD's open-source driver having many binary-only microcode files and Nouveau also needing blobs — including firmware files that NVIDIA still hasn't released for their latest GPUs. However, beginning with Intel Skylake and Broxton CPUs, their open-source driver will now too require closed-source firmware. The required "GuC" and "DMC" firmware files are for handling the new hardware's display microcontroller and workload scheduling engine. These firmware files are explicitly closed-source licensed and forbid any reverse-engineering. What choices are left for those wanting a fully-free, de-blobbed system while having a usable desktop?
Bug

Linux 4.0 Has a File-System Corruption Problem, RAID Users Warned 226 226

An anonymous reader writes: For the past few days kernel developers and Linux users have been investigating an EXT4 file-system corruption issue affecting the latest stable kernel series (Linux 4.0) and the current development code (Linux 4.1). It turns out that Linux users running the EXT4 file-system on a RAID0 configuration can easily destroy their file-system with this newest "stable" kernel. The cause and fix have materialized but it hasn't yet worked its way out into the mainline kernel, thus users should be warned before quickly upgrading to the new kernel on systems with EXT4 and RAID0.
Input Devices

Linux 4.1 Bringing Many Changes, But No KDBUS 232 232

An anonymous reader writes: The first release candidate of Linux 4.1 is now available. Linus noted, "The merge window is pretty normal in terms of what got merged too. Just eyeballing the size, it looks like this is going to fit right in — while 4.0 was a bit smaller than usual, 4.1 seems to be smack dab in the middle of the normal range for the last couple of years." There are numerous new features in Linux 4.1, like Xbox One controller force feedback support, better Wacom tablet support, Intel Atom SoC performance improvements, Radeon DisplayPort MST support, EXT4 file-system encryption, ChromeOS Lightbar support, and ACPI for 64-bit ARM, among other additions. However, KDBUS wasn't accepted for Linux 4.1.
GUI

Qt Creator 3.4.0 Released 20 20

jones_supa writes: Qt Creator 3.4.0 has been released with many new features. Qt Creator is a C/C++ IDE with specialized tools for developing Qt applications, and it works great for general-purpose projects as well. The new version comes with a C++ refactoring option to move function definitions out of a class declaration, auto-completion for signals and slots in Qt5-style connects, experimental Qt Test and Qt Quick Tests support in the Professional and Enterprise edition, support for 64-bit Android toolchains, and various other improvements. More details on the new version can be found in the official announcement and the changelog.
AMD

AMD Publishes New 'AMDGPU' Linux Graphics Driver 88 88

An anonymous reader writes: AMD has made available its new AMDGPU Linux graphics driver comprised of a brand new DRM/KMS kernel driver, a new xf86-video-amdgpu X11 driver, and modifications to libdrm and Gallium3D. This new AMDGPU driver is designed for supporting AMD's next-generation hardware with no support differences for currently supported Radeon GPUs. While yet to be released, this new AMDGPU driver is the critical piece to the new unified driver strategy with Catalyst where their high performance proprietary driver will now become limited to being a user-space binary component that uses this open-source kernel driver.
Graphics

NVIDIA's New GPUs Are Very Open-Source Unfriendly 309 309

An anonymous reader writes: The Nouveau driver developers working on open-source support for the GeForce 900 Maxwell graphics cards have found this new generation to be "very open-source unfriendly" and restricting. NVIDIA began requiring signed firmware images, which they have yet to provide to Nouveau developers, contrary to their earlier statements. The open-source developers have also found their firmware signing to go beyond just simple security precautions. For now the open-source NVIDIA driver can only enable displays with the GTX 900 series without any hardware acceleration.
Microsoft

Microsoft Starts Working On an LLVM-Based Compiler For .NET 125 125

An anonymous reader writes Are the days of Microsoft's proprietary compiler over? Microsoft has announced they've started work on a new .NET compiler using LLVM and targets their CoreCLR — any C# program written for the .NET core class libraries can now run on any OS where CoreCLR and LLVM are supported. Right now the compiler only supports JIT compilation but AOT is being worked on along with other features. The new Microsoft LLVM compiler is called LLILC and is MIT-licensed.
Open Source

Linux Getting Extensive x86 Assembly Code Refresh 209 209

jones_supa writes: A massive x86 assembly code spring cleaning has been done in a pull request that is to end up in Linux 4.1. The developers have tried testing the code on many different x86 boxes, but there's risk of regression when exposing the code to many more systems in the days and weeks ahead. That being said, the list of improvements is excellent. There are over 100 separate cleanups, restructuring changes, speedups and fixes in the x86 system call, IRQ, trap and other entry code, part of a heroic effort to deobfuscate a decade old spaghetti assembly code and its C code dependencies.
Linux

Linux 4.0 Kernel Released 172 172

An anonymous reader writes "The Linux 4.0 kernel has been released. Linux 4.0 brings many features including live patching, Radeon DisplayPort Audio, RadeonSI fan control improvements, new OverlayFS functionality, Intel Quark SoC support, and a heck of a lot more. Linus's release announcement reads in part: "So I decided to release 4.0 as per the normal schedule, because there really weren't any known issues, and while I'll be traveling during the end of the upcoming week due to a college visit, I'm hoping that won't affect the merge window very much. We'll see. Linux 4.0 was a pretty small release both in linux-next and in final size, although obviously 'small' is all relative. It's still over 10k non-merge commits. But we've definitely had bigger releases (and judging by linux-next v4.1 is going to be one of the bigger ones)."
Open Source

GCC 5.0 To Support OpenMP 4.0, Intel Cilk Plus, C++14 57 57

An anonymous reader writes: GCC 5 is coming up for release in the next few weeks and is presenting an extraordinary number of new features: C11 support by default, experimental C++14 support, full C++11 support in libstdc++, OpenMP 4.0 with Xeon Phi / GPU offloading, Intel Cilk Plus multi-threading, new ARM processor support, Intel AVX-512 handling, and much more. This is a big release, so those wishing to test it ahead of time can obtain the preliminary GCC 5 source code from GCC's snapshots mirror.
Graphics

Valve Bootstrapped Source 2 Engine On an Open-Source Vulkan Driver 60 60

An anonymous reader writes A new article out details how Valve bootstrapped their VULKAN back-end with the Source 2 Engine over a period of just four months thanks to relying on an open-source driver. With designing for the open-source Intel Vulkan Linux driver developed by LunarG, Valve developers were quickly able to resolve issues and progress the driver in a turn-key manner. This Intel Linux driver will be released as open-source once the Khronos VULKAN specification has been published.
Android

Visual Studio 2015 Can Target Linux; Android Apps Anywhere Chrome Can Run 96 96

jones_supa writes Phoronix has noticed that the Visual Studio 2015 product page mentions that the new IDE can target Linux out of the box. Specifically the page says "Build for iOS, Android, Windows devices, Windows Server or Linux". What this actually means is not completely certain at this point, but it certainly laces nicely with the company opening up the .NET Framework. And speaking of cross-platform software: new submitter mccrew writes Google has released a tool that lets Android apps run on any machine that can run its Chrome browser. Called Arc Welder, the tool acts as a wrapper around Android apps so they can run on Windows, OS X and Linux machines. The software expands the places that Android apps can run and might make it easier for developers to get code working on different machines.
GNU is Not Unix

GNU Nano Gets New Stable Release 119 119

jones_supa writes: GNU Nano 2.4.0 has been released as the first stable update to this UNIX command line text editor in a number of years. The release codenamed "Lizf" brings a wide variety of changes: full undo system, Vim-compatible file locking, linter support, formatter support, flexible syntax highlighting, and random bugfixes.
AMD

Gaming On Linux With Newest AMD Catalyst Driver Remains Slow 178 178

An anonymous reader writes The AMD Catalyst binary graphics driver has made a lot of improvements over the years, but it seems that NVIDIA is still leading in the Linux game with their shared cross-platform driver. Tests done by Phoronix of the Catalyst 15.3 Linux Beta found on Ubuntu 15.04 shows that NVIDIA continues leading over AMD Catalyst with several different GPUs on BioShock Infinite, a game finally released for Linux last week. With BioShock Infinite on Linux, years old mid-range GeForce GPUs were clobbering the high-end Radeon R9 290 and other recent AMD GPUs tested. The poor showing wasn't limited to BS:I though as the Metro Redux games were re-tested too on the new drivers and found the NVIDIA graphics still ran significantly faster and certainly a different story than under Windows.
PC Games (Games)

Steam On Linux Now Has Over a Thousand Games Available 192 192

An anonymous reader writes: This week the Steam Linux client has crossed the threshold of having more than 1,000 native Linux games available while Steam in total has just under 5,000 games. This news comes while the reported Steam Linux market-share is just about 1.0%, but Valve continues brewing big plans for Linux gaming. Is 2015 the year of the Linux gaming system?
Google

TSYNC Not a Hard Requirement For Google Chrome After All 46 46

An anonymous reader writes A few days ago it appeared that Google began requiring new versions of the Linux kernel for the Chrome/Chromium web browser. To some people, such requirement smelled funny, and it turns out that those people had the right hunch. Google does not intend for there to be a hard requirement on the latest versions of the Linux kernel that expose SECCOMP_FILTER_FLAG_TSYNC, but instead many users are hitting an issue around it. A Chromium developer commented on the related bug: "Updating the title so that people who have been mislead into thinking non-TSYNC kernels were deprecated immediately understand that there is simply 'some unknown bug' hitting some users." Of course, a user having the TSYNC feature in his kernel will still get a security benefit.
Graphics

Google Introduces Freon, a Replacement For X11 On Chrome OS 166 166

An anonymous reader writes With this week's release of Chrome OS M41, there is the new Freon graphics stack to replace X11 on some platforms. Freon is a very limited graphics stack to replace Chrome OS usage of X11/X.Org by having the Chrome browser communicate directly with the Linux kernel's KMS/DRM API and OpenGL ES interfaces for drawing. This design is much simpler and yields various power and performance improvements though it's not based on Wayland nor Mir (though Chrome plans to support these display server models).