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Graphics: X.Org, RADV, Virtualized GPU

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Graphics/Benchmarks

  • X.Org Server Patches Updated For Non-Desktop & Lease Handling

    Keith Packard has sent out his latest patches for implementing the non-desktop and DRM lease functionality from within the X.Org Server. This work also includes the relevant DDX bits being wired through for the xf86-video-modesetting driver.

    The "non-desktop" handling is the new property for indicating if a display output is not for a conventional desktop use-case, i.e. a VR HMD as the main use-case from Valve's perspective. When the VR HMD or other non-desktop output is set, it's not used by the X.Org Server and any desktop window manager so it can be reserved for the SteamVR compositor.

  • RADV Radeon Vulkan Driver Is Still A Better Bet Than AMDVLK In February 2018

    With the AMDVLK Radeon Vulkan driver that AMD open-sourced in December continuing to be updated in weekly batches with new Vulkan extensions / features / performance optimizations and the RADV Mesa-based Radeon Vulkan driver continuing to march to its own beat, I have spent the past few days conducting some fresh benchmarks between the AMDVLK and RADV Vulkan drivers with RX 560, RX 580, and RX Vega 64 graphics cards.

  • Virtualizing GPU Access

    Virtualized GPU access is becoming common in the containerized and virtualized application space. Let's have a look at why and how.

    For the past few years a clear trend of containerization of applications and services has emerged. Having processes containerized is beneficial in a number of ways. It both improves portability and strengthens security, and if done properly the performance penalty can be low.

    In order to further improve security containers are commonly run in virtualized environments. This provides some new challenges in terms of supporting the accelerated graphics usecase.

More in Tux Machines

Security: Updates, Tinder, FUD and KPTI Meltdown Mitigation

  • Security updates for Friday
  • Tinder vulnerability let hackers [sic] take over accounts with just a phone number

    The attack worked by exploiting two separate vulnerabilities: one in Tinder and another in Facebook’s Account Kit system, which Tinder uses to manage logins. The Account Kit vulnerability exposed users’ access tokens (also called an “aks” token), making them accessible through a simple API request with an associated phone number.

  • PSA: Improperly Secured Linux Servers Targeted with Chaos Backdoor [Ed: Drama queen once again (second time in a week almost) compares compromised GNU/Linux boxes to "back doors"]
    Hackers are using SSH brute-force attacks to take over Linux systems secured with weak passwords and are deploying a backdoor named Chaos. Attacks with this malware have been spotted since June, last year. They have been recently documented and broken down in a GoSecure report.
  • Another Potential Performance Optimization For KPTI Meltdown Mitigation
    Now that the dust is beginning to settle around the Meltdown and Spectre mitigation techniques on the major operating systems, in the weeks and months ahead we are likely to see more performance optimizations come to help offset the performance penalties incurred by mitigations like kernel page table isolation (KPTI) and Retpolines. This week a new patch series was published that may help with KPTI performance.

Purism News

  • February 2018 coreboot update now available
    Hey everyone, I’m happy to announce the release of an update to our coreboot images for Librem 13 v2 and Librem 15 v3 machines. All new laptops will come pre-loaded with this new update, and everyone else can update their machines using our existing build script which was updated to build the newest image. Some important remarks:
  • Purism Releases Updated Coreboot Images For Their Laptops
    Purism has released updated Coreboot images for their Librem 13 v2 and Librem 15 v3 laptops. The updated Coreboot images are now re-based to Coreboot 4.7, Intel FSP 2.0, IOMMU (VT-d) support is now available, TPM support is also enabled, and there are fixed ATA errors for 6Gbps speeds.
  • New Inventory with TPM by Default, Free International Shipping
    In November, we announced the availability of our Trusted Platform Module as a $99 add-on for early adopters, something that would allow us to cover the additional parts & labor costs, as well as test the waters to see how much demand there might be for this feature. We thought there would be “some” interest in that as an option, but we were not sure how much, especially since it was clearly presented as an “early preview” and offered at extra cost.

Mycroft AI on Plasma

Mycroft is running through the last 24 hours of the crowdfunding campaign for its Mark II assistant. The machine looks awesome and offers similar functionality to other proprietary alternatives, but with none of the spying and leaking of personal data. The Mark 2 will be delivered to backers at the end of this year, but you can enjoy the pleasures of giving orders to an AI right now by installing the Mycroft widget on Plasma courtesy of KDE hacker Aditya Mehra. Read more

Android Leftovers