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自动选题[news]: 20231030 Linux Kernel 6.6 Arrives With Numerous Refinements
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[#]: subject: "Linux Kernel 6.6 Arrives With Numerous Refinements"
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[#]: via: "https://news.itsfoss.com/linux-kernel-6-6-release/"
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[#]: author: "Sourav Rudra https://news.itsfoss.com/author/sourav/"
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[#]: collector: "lujun9972/lctt-scripts-1693450080"
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[#]: translator: " "
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[#]: reviewer: " "
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[#]: publisher: " "
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[#]: url: " "
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Linux Kernel 6.6 Arrives With Numerous Refinements
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======
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Improved laptop support, server improvements, and more.
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It is time for another Linux kernel release!
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The Linux kernel 6.6 release is a big one with **plenty of improvements across the board** for various laptops, networking hardware, processors and what not.
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Linus Torvalds [mentions][1]:
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_There's a random smattering of fixes all over, and apart from some
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bigger fixes to the r8152 driver, it's all fairly small. Below is the
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shortlog for last week for anybody who really wants to get a flavor of
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the details. It's short enough to scroll through._
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**Suggested Read** 📖
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![][2]
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## 🆕 Linux Kernel 6.6: What's New?
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Before we begin, just keep in mind that this is **a non-LTS release** , so not everyone is required to upgrade, unless they want the latest and greatest.
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Anyway, let's move on to the highlights of this release:
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* **Intel Improvements**
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* **Better Support for Laptops**
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* **Networking Improvements**
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* **AMD Enhancements**
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### Intel Improvements
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![][3]
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Linux kernel 6.6 features **support for Intel's Neural Processing Unit** ( **NPU** ) technology, which was formerly known as the Versatile Processing Unit.
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This tech is **set to debut with Intel's “[ **Meteor Lake**][4]” chips** later this year that will see these **NPUs exclusively being used for handling AI workloads**.
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Intel has even begun the **initial work for NPU support** on the upcoming “ **Arrow Lake** ” chips with this kernel release!
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Then there's the **support for Intel's[ **Shadow Stack**][5]** that came with the inclusion of their [**Control-flow Enforcement Technology**][6] (CET) into the kernel. Its main objective is to **defend against return-oriented programming (ROP) attacks** on modern Intel CPUs from Tiger Lake onwards.
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![][7]
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### Better Support for Laptops
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![][8]
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**For HP laptops** , it is now **possible to manage the BIOS from within Linux** , this is thanks to the implementation of the “ **HP-BIOSCFG** ” driver.
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According to reports, **HP laptops from 2018 and later should work** with this driver.
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**For Lenovo laptops** , the driver was updated to **add support for keyboard backlight control** for more IdeaPad laptops.
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Similarly, **for ASUS laptops** , the [ROG Flow X16][9] (2023) gaming laptops can now **properly enable tablet mode** when the lid is flipped over.
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### Networking Improvements
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![][10]
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On the networking side of things, Linux kernel 6.6 features **support for new hardware** such as [**Atheros QCA8081**][11], **MediaTek MT7988** , **MediaTek MT7981** , [**NXP TJA1120 PHY**][12], and more.
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Even the **drivers have seen upgrades** , take for instance the **Qualcomm Wi-Fi 7 (ath12k) driver** , which now **supports Extremely High Throughput (EHT) PHY**.
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Then there is the **enabling of AP mode for various Realtek (rtl8xxxu) Wi-Fi chips**.
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More details on networking-specific changes can be found in the [pull request][13].
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### AMD Enhancements
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![][14]
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With the Linux kernel 6.6 release, AMD developers have pushed **support for two new pieces of technology** that they have yet to officially announce.
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One is support for their upcoming “ **FreeSync Panel Replay** ” technology for gaming displays (laptops only) that would automatically decrease the refresh rate to save on power and reduce GPU workload.
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The other is called “ **Dynamic boost control** ” that is a **performance** **improving feature for some Ryzen SoCs** , details about it are quite slim.
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More on its implementation can be found in the [patch series][15].
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### 🛠️ Other Changes & Improvements
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As for the rest, here are some other notable changes:
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* Loads of new features for **LoongArch**.
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* The **Rust toolchain** was upgraded to v1.71.1.
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* Various improvements for **RISC-V** and **Btrfs**.
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* Complete removal of [**Wireless USB**][16] and [**Ultra-Wideband**][17] code.
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* Many improvements for **open-source graphics drivers** for **Nvidia** , **Intel** , and **AMD**.
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You can go through the [changelog][18] for more details.
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## Installing Linux Kernel 6.6
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If you are running rolling-release distros such as Arch or Fedora, then it is quite straightforward to upgrade.
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You just have to wait a bit, as these distros take their time in releasing the update.
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As for the rest, you can either wait for a major release, or **upgrade to the latest mainline Linux kernel in Ubuntu** by following our guide:
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![][19]
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You can download the tarball for the latest Linux kernel from its [official website][20] ( _it takes time for it to be available after release_ ).
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_💬 What do you think of this kernel release?_
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* * *
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--------------------------------------------------------------------------------
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via: https://news.itsfoss.com/linux-kernel-6-6-release/
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作者：[Sourav Rudra][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://news.itsfoss.com/author/sourav/
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[b]: https://github.com/lujun9972
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[1]: https://lkml.iu.edu/hypermail/linux/kernel/2310.3/06370.html
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[2]: https://news.itsfoss.com/content/images/size/w256h256/2022/08/android-chrome-192x192.png
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[3]: https://news.itsfoss.com/content/images/2023/10/Linux_Kernel_6.6_1.png
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[4]: https://www.intel.com/content/www/us/en/content-details/788851/meteor-lake-architecture-overview.html
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[5]: https://en.wikipedia.org/wiki/Shadow_stack
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[6]: https://www.intel.com/content/www/us/en/developer/articles/technical/technical-look-control-flow-enforcement-technology.html
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[7]: https://news.itsfoss.com/content/images/2023/04/Follow-us-on-Google-News.png
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[8]: https://news.itsfoss.com/content/images/2023/10/Linux_Kernel_6.6_2-1.png
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[9]: https://rog.asus.com/laptops/rog-flow/rog-flow-x16-2023-series/spec/
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[10]: https://news.itsfoss.com/content/images/2023/10/Linux_Kernel_6.6_3.png
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[11]: https://www.qualcomm.com/products/internet-of-things/networking/wi-fi-networks/qca8081
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[12]: https://www.nxp.com/products/interfaces/ethernet-/automotive-ethernet-phys/tja1120-automotive-ethernet-phy-1000base-t1-asil-b-and-tc-10:TJA1120
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[13]: https://lore.kernel.org/lkml/20230829125950.39432-1-pabeni@redhat.com/
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[14]: https://news.itsfoss.com/content/images/2023/10/Linux_Kernel_6.6_4.png
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[15]: https://lore.kernel.org/lkml/20230420163140.14940-1-mario.limonciello@amd.com/T/#m38ab23d70d213ceb67440168b3f71ad2be3aa564
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[16]: https://en.wikipedia.org/wiki/Wireless_USB
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[17]: https://en.wikipedia.org/wiki/Ultra-wideband
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[18]: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6
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[19]: https://itsfoss.com/content/images/size/w256h256/2022/12/android-chrome-192x192.png
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[20]: https://www.kernel.org/
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