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Intel: HEVC, ANV Vulkan Driver, Linux 5.7 and New Security Hole

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Linux
Hardware
  • Intel Adds VA-API Acceleration For HEVC REXT To FFmpeg

    Intel open-source developers have contributed support for VA-API acceleration of HEVC REXT "Range Extensions" content with the widely-used FFmpeg library.

    HEVC Range Extensions are extensions to H.265 geared for areas of content distribution, medical imaging, still imaging, and more. Among the changes with HEVC REXT are supporting 4:2:2 and 4:4:4 chroma sampling formats. HEVC Range Extensions are laid out in much more detail in this IEEE.org paper.

  • Intel Boosts Gen7 GPU Vulkan Compute Performance By ~330% For Geekbench

    Intel's open-source "ANV" Vulkan driver for Linux doesn't see much attention for pre-Broadwell hardware but today it saw a big improvement for Vulkan compute on aging Gen7 Ivybridge/Haswell era hardware.

    Jason Ekstrand, the lead developer of the Intel ANV Vulkan driver, discovered that in their driver's pipeline code the data cache functionality would end up being disabled when a shader was pulled out of the pipeline cache. For Broadwell/Gen8+ the data cache bit was being ignored but this oversight ended up having huge implications for Gen7 Intel graphics hardware (Ivybridge/Haswell) as the oldest supported by Intel's Vulkan driver.

  • Intel Has Accumulated 400+ Graphics Driver Patches So Far For Linux 5.7

    Intel just sent out their initial pull request of new feature changes/improvements to DRM-Next that in turn is for landing in about one month's time when the Linux 5.7 merge window kicks off. With taking longer than usual to send in their first round of feature updates, this first of several pull requests already amounts to over 400 patches.

    While it is a big pull request given the extra time for patches to accumulate, there aren't too many user-facing changes. Though there is a lot of enablement work for Tiger Lake as well as continuing Gen11 Ice Lake and Elkhart Lake work. For Ice Lake / Elkhart Lake there are a number of driver workarounds added. For Gen12 / Tiger Lake there are workarounds, display fixes, RPS is re-enabled, and other work.

  • Intel KVM Virtualization Hit By Vulnerability Over Unfinished Code

    At least not another hardware vulnerability, but CVE-2020-2732 appears to stem from unfinished code within the Intel VMX code for the Linux kernel's Kernel-based Virtual Machine (KVM) support.

    CVE-2020-2732 as of writing isn't yet public but we've been closely monitoring it since seeing a peculiar patch series earlier today and not finding much information on it.

More in Tux Machines

Linux 5.6.2

I'm announcing the release of the 5.6.2 kernel.

All users of the 5.6 kernel series must upgrade.

The updated 5.6.y git tree can be found at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.6.y
and can be browsed at the normal kernel.org git web browser:
	https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary

thanks,

greg k-h
Read more Also: Linux 5.6.2 Released With Fix For The IWLWIFI Intel WiFi Driver

DownZemAll is an open source download manager for Windows, Linux and macOS

Recently, while casually browsing GitHub, I came across a name that seemed familiar at first; it turned out to be a new download manager called DownZemAll. The program's name is very similar to the popular DownloadThemAll! extension for Firefox, which is what surprised me. The official page reveals that the developer of DownZemAll started the project during the time the legacy add-on stopped working with Firefox Quantum, and seems to have used it as the inspiration to rewrite this application. But that's where the similarities end, because DownZemAll is a desktop program. Let's take a look at it to see how it stacks up. The interface is mostly what you'd expect in a download manager: a menu bar, toolbar, the main pane, but unlike others, DownZemAll has a sidebar too. The options in the side panel are also available from the right-click menu. Read more

Audiocasts/Shows: Choose Linux, The Linux Link Tech Show, Bad Voltage

You Can Now Buy a PinePhone Preloaded with Ubuntu Touch

Ubuntu Touch, also known by the name UBports, is a community-maintained version of Ubuntu for phones and tablets based on Ubuntu 16.04 LTS. It is a direct continuation of the codebase Canonical cancelled a few years back. From today you (and anyone else interested) can preorder a PinePhone Community Edition with UBports direct from the Pine64 Store. Read more