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Linux 5.5 Merges and News

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Linux
  • Linux 5.5 Can Boot The Modem Processor On Snapdragon 835 - Needed For Cell/WiFi On Qualcomm Laptops

    With the Linux 5.4 cycle we saw mainline support beginning to come together for some Qualcomm ARM Linux laptops while with Linux 5.5 another milestone is being achieved. There has been out-of-tree support in the works for getting the various consumer Snapdragon laptops working with Linux while those changes are slowly getting into the mainline kernel.

    The newest milestone comes with the remoteproc updates for Linux 5.5 and that is the ability to boot the modem processor on the Qualcomm MSM8998 (Snapdragon 835).

  • With Approaching Another Year Closer To Year 2038, Linux 5.5 Brings More Y2038 Fixes

    With approaching another year closer to the Year 2038 problem, where on 19 January 2038 the number of seconds for the Unix timestamp can no longer be stored in a signed 32-bit integer, Linux 5.5 is bringing more Y2038 preparations.

    Y2038 fixes have been ongoing for years to mitigate the kernel against the Year 2038 problem, particularly for 32-bit platforms. Most of the Year 2038 preparations have been made to the Linux kernel to transition to 64-bit time_t even on 32-bit architectures, among other workarounds.

  • AMD IOMMU Driver Reworked For Linux 5.5

    With the IOMMU updates for the Linux 5.5 kernel there is a major rework to the AMD IOMMU driver to make use of more common DMA IOMMU code for implementing the DMA API but with an admitted risk of potential new regressions.

    The AMD IOMMU Linux driver now makes use of the "dma-iommu" kernel code that allows the driver to be lightened up by several hundred lines of code thanks to the code sharing/re-use. Besides the DMA IOMMU changes, the AMD IOMMU driver now also has multiple PCI DMA alias support.

More in Tux Machines

Nvidia Is Preparing An Unexpected Surprise For Linux Users In 2020

Each year Nvidia hosts the GPU Technology Conference, a global gathering of AI developers, data scientists, graphic artists, and pretty much anyone in the technology industry working with GPUs in their chosen fields. The event packs in keynotes with roadmaps and reveals, face-time with Nvidia engineers, and hundreds of sessions to participate in. GTC 2020, though, looks to include a special surprise for Linux users and open source enthusiasts. Supporting Nouveau eh? That’s the open source Linux driver used to drive Nvidia graphics cards (Nvidia also supplies a proprietary driver for Linux), and Nvidia’s historical lack of contributions is what led Linus Torvalds to famously flip Nvidia the bird and utter words I can’t print here. (I can link to them though. . .) The community of developers working on the Nouveau driver have experienced several roadblocks throughout the years. Paramount among them is the inability to achieve normal GPU clock speeds due to Nvidia’s locked down firmware on many models of graphics cards. This leads to undesirable performance and a multitude of potential video display issues across many Linux distributions. Read more

Android Leftovers

Pekwm: A lightweight Linux desktop

Let's say you want a lightweight desktop environment, with just enough to get graphics on the screen, move some windows around, and not much else. You find traditional desktops get in your way, with their notifications and taskbars and system trays. You want to live your life primarily from a terminal, but you also want the luxury of launching graphical applications. If that sounds like you, then Pekwm may be what you've been looking for all along. Pekwm is, presumably, inspired by the likes of Window Maker and Fluxbox. It provides an application menu, window decoration, and not a whole lot more. It's ideal for minimalists—users who want to conserve resources and users who prefer to work from a terminal. Read more

What motivates people to contribute to open source?

Knowing what motivates people is a smart way to recruit contributors to an open source project—and to keep them contributing once they've joined. For his book How Open Source Ate Software, Red Hat's Gordon Haff did a lot of research on the topic of motivation, and he shared some of it in his Lightning Talk at All Things Open 2019, "Why do we contribute to open source?" Watch Gordon's Lightning Talk to learn about the three main types of motivation—extrinsic, intrinsic, and internalized extrinsic—what they are, and how they relate to open source communities. Read more