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Open Source Operating Systems Software Upgrades Linux

Linux 4.5 Adds Raspberry Pi 2 Support, AMD GPU Re-Clocking, Intel Kaby Lake (phoronix.com) 147

The Linux 4.5 merge window has been open for the last two weeks; that means that the 4.5-rc1 kernel is expected to emerge, with the official kernel following in about eight weeks. An anonymous reader writes with this top-level list of changes to look for, from Phoronix: Linux 4.5 is set to bring many new features across the kernel's 20 million line code-base. Among the new/improved features are Raspberry Pi 2 support, open-source Raspberry Pi 3D support, NVIDIA Tegra X1 / Jetson TX1 support, an open-source Vivante graphics driver, AMDGPU PowerPlay/re-clocking support, Intel Kaby Lake enablement, a Logitech racing wheel driver, improvements for handling suspended USB devices, new F2FS file-system features, and better Xbox One controller handling.
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Linux 4.5 Adds Raspberry Pi 2 Support, AMD GPU Re-Clocking, Intel Kaby Lake

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  • Rpi (Score:5, Insightful)

    by amiga3D ( 567632 ) on Sunday January 24, 2016 @10:18AM (#51360917)

    So happy to see the Raspberry Pi 3D support. Thanks for the goodies!

    • Too bad kernel 4.5 isn't making it into Ubuntu 16.04 Xenial Xerus... http://www.omgubuntu.co.uk/201... [omgubuntu.co.uk]

      • by amiga3D ( 567632 )

        It'll probably come in as an update after the release.

        • See, that kind of blows me away, that LTS updates now push new kernels and versions of the GL drivers. I understand that this serves the majority of the users, but not all updates improve things for all users.

    • I think this is just open source RPi support. There has been closed source RPi graphics stuff for ages however this doesn't change the fact that the GPU is just shite and the RPi2 didn't change that. More ARM cores is nice but it would also be nice to be able to put something 1080p on the screen without stuttering. I use the lower level libraries for my project and I get some decent results but I'm now moving on to the Intel Compute Stick which is a quad core Atom with Intel HD graphics that costs the same

    • So happy to see the Raspberry Pi 3D support. Thanks for the goodies!

      Goes double.

      Is anything similar planned for BeagleBones - especially BeagleBone Black, which is the current cutting edge?

      I have to deal with them, and the last time I looked their kernels were coming out of a separate project - which distributes an archive of script to be applied to the corresponding version of the packages, to be overlaid on and applied to the corresponding kernel sources, to hack them into shape for the Bones. It would

      • by KGIII ( 973947 )

        I do not recollect seeing anything in the mailing list about the BeagleBone specifically, so that's all I have for you. I could have missed it but a quick peek doesn't reveal anything. Unfortunately, sometimes they get poorly filtered and my various folders have ended up a mess because of this. They're not that bad but sometimes things get lost in the shuffle and while I don't delete anything (of importance) things do, at times, go amiss.

        You know, I think I'm going to take this as an opportunity to "rant."

  • Why is the "Logitech racing wheel driver" part of the kernel, even if it is optional, rather than a user space driver?

    • by goranb ( 209371 )

      probably because of low latency needs...

    • by Bite The Pillow ( 3087109 ) on Sunday January 24, 2016 @10:44AM (#51360987)

      Because the round trip between kernel and user space is slow. And when you drive with the Logitech brand Racing Wheel, you want to go FAST!

      Say your turn stars a microsecond too late. Well bam, you didn't make that sweet corner, you just drifted into two orphans and a nun. And since your brake kicked in late, you didn't just hit them, you broadsided them right into the facade of a 19th century faux gothic whiskey still, and but for want of a mason jar you could have made orphan preserves from the remains.

      All because you put your slow ass driver in userspace, with a fast ass driver in the seat. Think of the children, you monster!

      • Because the round trip between kernel and user space is slow. And when you drive with the Logitech brand Racing Wheel, you want to go FAST!

        Wouldn't you want to the driver in user space then? The application certainly runs in user space, so a user space driver avoids kernel land altogether.

    • by ledow ( 319597 )

      It has to talk to hardware and DMA and all sorts.

      The right place for drivers is sitting in-kernel, isolated, and offering a limited, filtered, sanitised interface to user-space.

      The driver for the simplest of joysticks is in-kernel, offering up the /dev/input interfaces.

  • While I do not keep up with every changelog, it seams that gaming and video related improvements are all the rage now for the kernel. I have to say I like this and it has been needed for some time. The kernel is here to stay in both handheld devices, embedded set top devices and now consolish and home brew steamboxen. Seeing the OS improve as it pushes into these spaces is a great development.
  • by Anonymous Coward

    Does RPI 3D support means that we can see full futured android running on it?

  • Lots of arguing, but I do not see where anybody has answered the question.

    Can I use Linux 4.5 without systemd? Will it work without systemd on Gentoo? Will it work, without systemd, on RasPi?

    • I didn't notice anybody asking a question, just a bunch of tedious trolling.

      Of course the answer is no, the kernel doesn't need systemd.

      • by KGIII ( 973947 )

        This is not concerning the topic at hand and is longer than what fits on a bumper sticker and certainly doesn't fit into 140 characters. It may actually be of value to you, that's entirely up to you to decide.

        I do not usually take orders from people who are not qualified to give them but I made an exception and watched the video, as instructed, and it was mildly interesting (though I'm a little concerned with his verbiage - I know what he means when he says that CO2 emits heat). Otherwise, it was an interes

        • Concern troll is concerned?

          • by KGIII ( 973947 )

            Not at all, I figure you might want to actually make more people interested in your link. You might be, somehow, unfamiliar with my posts but I can assure you - I am not trolling at all. I actually enjoyed your link and think you'll get more interest by simply requesting instead of ordering. You don't have to listen to me, of course, but I bet I'm the first person who's ever actually clicked on your link, watched the video, and made it a point to type out a long, thought out, reply trying to help you get th

            • Well, since you're not the only person who's ever clicked on the link, I don't see the point of your whole screed.

              By the way, your messages are needlessly long and repetitive with a strong passive-agressive tone that I think will put many people off. You'd do better to be shorter and more pithy.

              • by KGIII ( 973947 )

                I don't know as it's passive aggressive but I'd not know that so I'll have to take your word for it. The rest is definitely true. I've serious issues with being verbose instead of articulate. It stems from the need to ensure that I spell everything out clearly, leaving as little as possible to misinterpretation, because I've been "talking" on the 'net for so long that I've actually become better at writing but more poor at articulating. You're 100% correct and, while I do work at it, I don't really do a ver

        • Note the traffic differences, if you can, when you see a sign that says "MERGE AHEAD PLEASE USE CAUTION" as opposed to just a sign with an indicator arrow on it.

          Yup. The difference is that you get a huge increase in traffic accidents in a multilingual environment.

    • That's like asking if you can walk a dog without a studded collar. The kernel is separate from the init system. I suspect your problem with systemd has little to do with systemd and much more to do with not understanding how your system works, or being unwilling to take the time to learn about it.

To communicate is the beginning of understanding. -- AT&T

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