Linux Hardware Reviews & Performance Benchmarks, Open-Source News

For those using QEMU as part of the open-source virtualization stack, QEMU 11.1 is now available with a number of new feature enhancements and fixes.

A new blog post out today from the Redox OS crew highlights all of the interesting improvements made to this Rust-based, open-source operating system over the course of July.

8 Hours Ago - Intel - Intel CPU Microcode 20260811

Intel today published their 20260811 CPU microcode updates to fix a variety of issues for existing processors, including shipping the first new microcode images for Bartlett Lake and Wildcat Lake. The new microcode updates stretch back to Intel Core Gen10 processors.

9 Hours Ago - AI - ChatGPT Desktop App For Linux

OpenAI announced today they have brought their ChatGPT Desktop application to Linux and is currently in preview form.

As part of my recent Linux testing of the Framework Laptop 13 Pro I had recently benchmarked six Linux distributions on the Framework Laptop 13 Pro. CachyOS was the fastest to not much surprise but arguably the most surprising aspect was finding Fedora Workstation 44 typically running slower than the five other modern Linux distributions benchmarked. Here's a follow-up to that with more Fedora Linux benchmarks and the cause/workaround for Fedora's slower performance on the Intel Panther Lake laptop.

Flatpak 1.19 was released today as a new development release along with the Flatpak 1.18.1 stable point release. Both of these releases ship a number of newly-discovered security issues with this app sandboxing and distribution tech.

GNOME interaction designer Tobias Bernard has shared some of the plans and ideas for long-term GNOME Shell improvements they have been eyeing for future GNOME releases.

Linux developer Rik van Riel has pulled off some nice Linux kernel optimizations over the years and the Meta engineer has been working on another one around batching of look-ups with Linux's follow_page_mask() that is used for translating virtual addresses to the corresponding struct page.

One of the Raspberry Pi device drivers that has remained elusive from the mainline Linux kernel has been for the performance monitoring unit (PMU) for the Broadcom AXI on all Raspberry Pi 1 through Raspberry Pi 5 models. Thanks to the work of a Google engineer, there is a new effort working to get a mainline Linux driver for the Raspberry Pi AXI PMU.

FastFlowLM is the open-source software for getting vision, audio, embedding, and MoE large language models up and running on AMD Ryzen AI NPUs. FastFlowLM 1.0 released today and is also now part of the AMD ROCm software umbrella.

With the recent release of Mesa 26.2 the Rusticl OpenCL driver now supports OpenCL 3.1 on RadeonSI, LLVMpipe, Zink, Intel Iris, and Apple Asahi. But the work is not over and more improvements to this Rust-based, modern OpenCL driver continue to land.

The HP OmniBook X Flip 14-kc0xxx is an AMD Ryzen AI 300 "Strix Point" powered laptop. While most AMD Strix Point laptops work fine on modern Linux distributions, with this particular HP OmniBook X there is no working audio with current mainline Linux kernel builds. With Claude Opus 5 acting as a debugging assistant and coding agent, patches are now pending to correct the audio support for this HP OmniBook X Flip 14 laptop to function on Linux.

Sent to DRM-Next this week was the DRM Rust core and driver changes targeting the upcoming Linux 7.3 merge window. There continues to be a lot of DRM core infrastructure work happening for Rust integration plus two leading Rust DRM drivers of Nova for open-source NVIDIA GPU support as the successor to Nouveau and then Tyr as the in-development Arm Mali driver.

Fedora's CoreOS as their container-optimized operating system will be moving to enable systemd-oomd by default with Fedora CoreOS 45. Additionally, swap on zRAM will be enabled by default too.

In addition to more ASUS motherboards having working sensors with Linux 7.3, this next kernel version will also get several more Lenovo laptop models to be reporting their fan sensor information under Linux.

Expected to be merged during the upcoming Linux 7.3 merge window is a Kernel Control Flow Integrity (KCFI) improvement intended to benefit older Intel processors.

10 August 11:22 AM EDT - Qt - Qt + Edge AI Inferencing

The Qt Group has been working on various AI integrations for the Qt toolkit in recent times like a QML profiler skill for agentic development to help with performance profiling. They have also worked on Qt AI coding assistants and AI agents in the Qt Creator integrated development environment. Their latest AI use is now preparing to introduce a new module in the Qt toolkit itself for edge AI inferencing.

HP recently launched their Z4 G6i workstation that I have been testing out the past few weeks. The HP Z4 G6i is powered by Granite Rapids WS with the review unit specifically being powered by the Intel Xeon 678X. As the unit shipped with Microsoft Windows 11 Pro and this being the first time I've had my hands on Granite Rapids WS, I took the opportunity to run some Windows 11 vs. Ubuntu 26.04 LTS performance benchmarks to see how the operating system performance compares for this 48 core / 96 thread workstation processor.

Linux Mint is out today with their July 2026 status update that highlights all the improvements made to their distribution over the past month.

10 August 07:10 AM EDT - AI - Muse Glimmer

The Meta Superintelligence Labs announced this morning they have released Muse Glimmer as their next large language model featuring 30 billion parameters for always-on local agent workflows. Muse Glimmer features open-source model weights under an Apache 2.0 license.

10 August 06:28 AM EDT - Hardware - Benefits CPUs With SSE, No SSE2

A minor performance optimization is on the way to the Linux kernel for roughly two decade old CPUs that have SSE but lack SSE2. Among those CPUs to benefit are the AMD Athlon XP series, some early Sempron models, and some Intel Celeron and Pentium III models.

10 August 06:15 AM EDT - Apple - Improvement During s2idle

In addition to Linux 7.3 slated to receive initial Apple M3 Pro / Max / Ultra SoC support, this next version of the Linux kernel is also set to bring some minor power savings for the Apple M1 series that remains the best supported Apple Silicon on Linux.

On top of various other Linux drivers for old hardware being removed due to noise generated by AI/LLM coding agents, there are more examples coming with Linux 7.3 as some old Silicon Graphics (SGI) drivers are being removed from the mainline Linux kernel over security concerns.

Linux 7.2-rc7 is now available for testing as we close in on the official Linux 7.2 release hopefully next weekend.

CachyOS is out with its latest media refresh of the year. Beyond the usual desktop improvements for the performance-optimized CachyOS, they continue working toward the upcoming CachyOS Server Edition.

9 August 11:35 AM EDT - Arm - Qualcomm Kuno

Qualcomm engineers posted a set of 15 patches today for the Linux kernel to enable the Qualcomm Kuno SoC support and their reference development platform.

The Intel graphics compiler code in Mesa 26.3-devel has now enabled the Large GRF mode for Alchemist/DG2 and Battlemage/Xe2 graphics and VRT for Xe3 graphics.

Launched back in 2021 was the Dell Latitude 7320 2-in-1 business laptop/tablet powered by the at-the-time impressive Intel 11th Gen Core "Tiger Lake" processors. Remaining elusive until now has been the web cameras actually working on Linux, but patches posted this weekend finally are cracking that mystery at least for the user-facing web cam.

9 August 06:10 AM EDT - BSD - FreeBSD 14.5

For those still on the FreeBSD 14 N-1 stable series rather than the latest FreeBSD 15 series, FreeBSD 14.5 is working toward release to deliver various security fixes and backports.

For those with an ASUS ROG Ryujin III all-in-one CPU liquid cooling setup catering to gamers, there are now patches pending to enable this AIO liquid cooling setup to work under Linux for monitoring.

8 August 01:27 PM EDT - Intel - Cluster Scheduling

A set of patches from Intel are set to be merged for the upcoming Linux 7.3 merge window to enhance the cluster-aware scheduling code so it better handles load balancing on modern Intel Core (Ultra) hybrid CPUs with a mix of P and E/LPE cores.

For those looking to manage the RGB lighting and other features of their Razer devices on Linux, Polychromatic 0.9.8 is now available for that UI front-end that interacts with the OpenRazer kernel drivers for providing a decent albeit unofficial Linux configuration experience.

Making its debut this Saturday rather than the usual bi-weekly Friday release regiment, Wine 11.15 is out today as the newest development release for this open-source software enabling Windows games and applications to run on Linux.

8 August 07:20 AM EDT - GNOME - GNOME Design Fellowship

Germany's Sovereign Tech Agency announced earlier this year a new fellowship program and now as part of that, for the next two years GNOME has a fellow dedicated to working on design and community management.

It's been another busy week in the Linux kernel camp with increased patch activity continuing due to AI/LLM coding agents / bots continuing to uncover different defects in the open-source codebase. The hardware monitoring (HWMON) subsystem saw many fixes this week for issues mostly raised by the Sashiko AI bot with the issues being described as mostly critical or high severity bugs.

Thanks in part to the power of Claude Opus 5 and Claude Fable 5, a new Windows DirectX 11 driver for QEMU has been created to help improve graphics acceleration for Microsoft Windows guests running under QEMU virtual machines.

The input subsystem fixes for the week include a number of AI-driven patches to address various information leaks, out-of-bounds accesses, validation fixes, and other coding issues that have turned up recently. Plus some device quirks and also adding support for a rather funky gaming controller to the common XPad Linux driver used by many different gaming controllers.

7 August 09:01 PM EDT - KDE - KDE Plasma 6.8

It's been another busy summertime week of KDE developers working toward a great Plasma 6.8 desktop release in October.

7 August 03:28 PM EDT - Hardware - Logitech HID++ 2.0 Reprogrammable Button

For those with newer, high-end Logitech input devices, coming with Linux 7.3 is support for the re-programmable button support of the HID++ 2.0 protocol.

Upstreamed for the Linux 7.2 kernel was the Device Tree (DT) support for booting the mainline Linux kernel on the base Apple M3 SoC. Though it's not yet useful for end-users with many features remaining to be supported and upstreamed. Now for the upcoming Linux 7.3 kernel, the M3 Pro, Max, and Ultra variants will also have initial support for booting on the mainline kernel.

7 August 12:57 PM EDT - Intel - Intel QATlib 26.08

Intel today released an updated version of their QuickAssist Technology library (QATlib) as the user-space component for making use of QuickAssist accelerators under Linux.

This week a final batch of DRM-Misc-Next feature material was submitted for DRM-Next to queue ahead of the Linux 7.3 merge window opening later in the month. Most notable is the TTM memory management code is now being more agressive when allocating below protection limits. This is an improvement coming thanks to Valve's open-source Linux graphics team.

7 August 10:00 AM EDT - Intel - Intel + HDMI 2.1 On Linux

Following AMD making progress with HDMI Fixed Rate Link (FRL) and other HDMI 2.1 functionality for their open-source Linux kernel graphics driver, Intel is out today with a big set of 44 patches working on HDMI 2.1 FRL support for their kernel graphics driver with Meteor Lake hardware and newer.

The release candidate of PoCL 7.2 is now available for testing of this Portable Computing Language implementation of OpenCL that allows for CPU-based execution or via alternative LLVM back-ends allows for OpenCL on Level Zero, NVIDIA GPUs, and even remote devices/hardware.

A new driver coming for the Linux 7.3 kernel is HID-HyperX. It's not some new driver to support fancy hardware and some nifty features but rather mundane in nature due to the poor behavior of a high-end HyperX USB gaming microphone.

The latest high profile open-source project to commit to an AI coding policy is NetworkManager, the widely-used software for Linux network configuration.

The newest ROCm component for AMD's open-source GPU compute stack is Spur as an AI-native, Rust-written job scheduler for scaling up GPU workloads to multi-thousand GPU clusters.

The Linux kernel Git activity continues being quite heavy this week on fixes. It's looking like the Linux 7.2-rc7 kernel release on Sunday will be another big one with the changes continuing to flow in from both developers and AI bots.

7 August 06:08 AM EDT - Radeon - AMD HDMI VRR + ALLM

Complementing the HDMI 2.1 Fixed Rate Link (FRL) support that AMD already upstreamed to the Linux kernel, AMD engineers have been further ironing out their HDMI 2.1 implementation for the open-source AMDGPU Linux kernel driver. The latest quest has been getting HDMI 2.1 variable rate refresh (VRR) support upstreamed along with HDMI Auto Low-Latency Mode (ALLM).

7 August 05:58 AM EDT - Vulkan - VK_EXT_cooperative_matrix_maintenance1

Vulkan 1.4.359 released today and this one week update to the Vulkan API specification brings a new extension for enhancing the cooperative matrix capabilities.

Following the GCC 16.1 compiler release from the end of April as the first stable version of GCC 16, GCC 16.2 is now available with dozens of bug fixes collected since then for further stabilizing this year's GNU compiler feature release.

6 August 08:44 PM EDT - Radeon - AMDGPU For Linux 7.3

AMD today submitted their last planned feature updates ahead of the Linux 7.3 merge window opening later this month.

Made public earlier today is Zapscape as a guest-to-host escape vulnerability affecting the Linux KVM x86 code for the past six years. This 2020 kernel change to KVM x86 can also be used as a local privilege escalation (LPE) exploit too where /dev/kvm is world-writable on some Linux distributions like RHEL.

Back during the Linux 7.2 merge window the Btrfs file-system dropped its COW fixup mechanism, which was used to detect dirty pages without an ordered extent. This code was removed as it was believed the kernel's memory management layer had solved the underlying conditions but in reality it ended up leading to silent data loss. That Btrfs fixup worker infrastructure is now restored in time for Linux 7.2-rc7 this weekend and the stable v7.2 kernel later this month.

While the Linux WiFi/wireless maintainer just announced taking a stand against AI/LLM generated slop patches with a new "three second review" rule, the broader Linux networking subsystem continues to be bombarded with AI-generated patches.

As the first new release since IceWM 4.0 released back on New Year's Day for this X11 window manager, IceWM 4.1 is now available.

Made public minutes ago is the Safe RET Interrupt Vulnerability which is now patched in the newest Linux kernel Git code. The Safe RET Interrupt Vulnerability stems from improper handling within Linux's Speculative Return Stack Overflow (SRSO) mitigation affecting AMD Zen 1 through Zen 4 processors.

6 August 12:00 PM EDT - Apple - Apple NVMe Firmware Woes

A set of patches providing fixes for the Apple Silicon NVMe driver for the Linux kernel were sent out today due to new issues cropping up when running newer Apple firmware. Firmware shipped by macOS 15+ is causing issues with the current Apple NVMe open-source Linux driver developed by the Asahi Linux crew.

For nearly the past decade has been the kernel lockdown mode for tightening up kernel access from user-space such as when UEFI Secure Boot is enabled. The kernel lockdown mode restricts PCI BAR access, no writing to /dev/mem, and other restrictions so user-space can't modify the running kernel or access sensitive kernel memory. An oversight has allowed legacy I/O and memory interfaces via sysfs to remain open in lockdown mode, but a fix is on the way.

In addition to the Linux kernel staging area now rejecting AI/LLM-generated patches except for real security fixes, the Linux wireless networking code is also seeing some shifts around how it will deal with AI/LLM generated patches.

A new kernel feature proposed by a Google engineer is Page Alloc Hogger to allow for fine control over where memory pages are allocated in order to more easily reproduce low-memory conditions, make it simpler to exert memory pressure, and enable other stressful memory conditions for testing/debugging how Linux copes.

Earlier this year we began seeing patches for AMD GFX1170 graphics IP labeled as "RDNA 4m" and that was then completed with also adding GFX1171 and GFX1172 as additional targets for the AMDGPU LLVM compiler back-end and AMDGPU kernel driver. Merged today for Mesa 26.3 is now adding the GFX1171 target to Mesa 26.3 for the RADV and RadeonSI drivers.

Qualcomm engineers have initiated a discussion over upstreaming Synx to the Linux kernel, which is a global synchronization framework across different parts of SoCs. Qualcomm is already using Synx internally and is reported to provide "significant" power and performance benefits.

If you happen to have a gaming headset from the latest SteelSeries Nova 5X or Nova 7 series, the upcoming Linux 7.3 kernel will begin properly supporting those headsets.