Linux 6.19 addresses USB2 and USB3 issues on Apple M1 and M2 Macs

The upcoming Linux kernel version 6.19 includes fixes for USB connectivity problems affecting Apple M1 and M2 Macintosh computers. These updates aim to resolve longstanding issues with USB2 and USB3 ports on these devices. The changes are being integrated into the mainline kernel, as reported by Phoronix.

Developers are preparing Linux kernel 6.19 to incorporate patches that tackle USB2 and USB3 compatibility glitches specific to Apple's M1 and M2 chip-based Macs. These machines, introduced in recent years, have faced challenges with USB functionality under Linux, impacting data transfer and peripheral connections.

The fixes, detailed in Phoronix coverage, focus on enhancing driver support for the USB controllers in these Apple silicon systems. While exact technical details of the patches remain limited in available reports, the integration signals progress in making Linux more robust on non-x86 hardware like Apple's ARM-based processors.

This development benefits Linux users seeking to run the open-source OS on modern Apple hardware, potentially reducing the need for custom workarounds. Broader context includes ongoing efforts to improve Linux compatibility with Apple Silicon, following initial support in earlier kernel versions. No specific release timeline for 6.19 was mentioned, but such merges typically precede stable releases by weeks or months.

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Illustration of Linux kernel 6.19 release with Tux penguin, scheduling enhancements, Microsoft C extensions, and collaborating tech giants for a news article.
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Linux kernel 6.19 adds scheduling enhancements and Microsoft C extensions

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The upcoming Linux kernel 6.19 introduces key improvements to the sched_ext framework for better eBPF scheduler recovery and integrates Microsoft C extensions for cleaner code compilation. These updates aim to enhance stability, performance, and developer efficiency in various computing environments. Contributions from companies like Google, Meta, and Microsoft highlight growing collaboration in open-source development.

Building on recently merged laptop and gaming handheld improvements, Linux kernel 6.19 is finalizing support for additional laptop models by the end of 2025, enhancing hardware compatibility.

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Developers have integrated enhancements for laptops and gaming handheld devices into the Linux 6.19 kernel. These updates focus on x86 platform drivers. The changes were reported by Phoronix.

Early tests of the Linux 6.19 development kernel on a dual AMD EPYC 9965 processor server reveal strong performance in high-performance computing workloads. Despite some scheduler issues, the kernel shows promising results for AI and HPC applications. These benchmarks compare it against the stable Linux 6.18 version.

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After 53 years, the Linux kernel is set to include a stable driver for Hewlett-Packard's General Purpose Interface Bus, a standard introduced in 1972. This update arrives in the upcoming kernel version 6.19. The interface offers a bandwidth of 8 MB/s.

The upcoming Linux 6.19 release candidate 6 includes audio improvements targeted at specific hardware. These fixes address sound issues on the ROG Xbox Ally X and various laptop models. The updates aim to enhance compatibility for users relying on these devices with Linux.

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Developers have resolved a performance regression in the Linux kernel 6.19's Slab allocator, which slowed module loading due to NUMA policy alterations. The issue, identified through benchmarking, affected memory management efficiency on high-core systems. The fix restores proper allocation behavior and has been merged into the mainline kernel.

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