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Ubuntu: Xubuntu 20.04 Beta Run Through, Ubuntu Weekly Newsletter, Security Fixes and Plymouth

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Ubuntu

  • Xubuntu 20.04 Beta Run Through

    In this video, we are looking at Xubuntu 20.04 Beta. Enjoy!

  • Ubuntu Weekly Newsletter Issue 625

    Welcome to the Ubuntu Weekly Newsletter, Issue 625 for the week of March 29 – April 4, 2020. The full version of this issue is available here.

  • Canonical Outs New Kernel Security Updates for Ubuntu to Fix 4 Flaws

    Canonical has released today new Linux kernel security updates for all supported Ubuntu releases to address a total of four security vulnerabilities discovered by various researchers.

    Affecting all supported Ubuntu releases and kernels, a flaw (CVE-2020-8428) discovered by Al Viro in Linux kernel’s VFS (Virtual Filesystem Switch) layer, which could allow a local attacker to crash the system or expose sensitive information, was patched in this update.

    On top of that, the new Linux kernel security update also fixes a vulnerability (CVE-2019-19046) discovered in the IPMI message handler implementation, which could allow a local attacker to cause a denial of service (kernel memory exhaustion). This flaw affects only Ubuntu 19.10 and Ubuntu 18.04.4 LTS systems running Linux kernel 5.3.

  • Canonical Contributing Upstream Improvements To Plymouth Ahead Of Ubuntu 20.04 LTS

    One of the immediate differences Ubuntu 20.04 desktop/laptop users will notice when booting in UEFI mode is the boot splash screen improvements thanks to leveraging Red Hat's work on providing a flicker-free boot experience and pulling in the UEFI BGRT system/motherboard logo during the boot process to provide a more transitive experience. Canonical in turn is working on pushing some of their improvements back into upstream Plymouth.

    The Ubuntu 20.04 LTS boot experience is on-par to what has been found in Fedora and other Linux distributions like Arch Linux for over one year.

Ubuntu Security Updates Released to Fix Denial of Service

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Python Programming

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  • Pros and Cons of Python: A Definitive Python Web Development Guide

    Python is a powerful programming language for mobile and web development projects. It is also the most popular programming language for AI in 2020. RedI Python development’s use cases in scientific computing, statistics, and education make it one of the highly preferred programming languages for Python programmers. The open-source programming language launched in 1992 is now on the verge of becoming the most popular and used programming language. Due to the rise in demand for AI and ML applications, Python web programming is now the first thing that comes to mind for coding such applications. But is Python for web development even worth it? It definitely is. Some of the top companies use Python web programming in their technology stack.

Fedora 32 Elections

mesa 20.1.0

Hi all,

I'd like to announce Mesa 20.1.0, the first release for the 20.1 branch.

Being the first release of this new branch, there can be issues that
will be discovered now that the new code will be widely used, so you may
want to stay on the 20.0.x releases until the 20.1.1 release, scheduled
for 14 days from now on 2020-06-10.

One already known issue that I want to point out is that Unreal Engine 4
has a bug in its usage of glDrawRangeElements() causing it to be
called with a number of vertices in place of the `end` parameter,
that was recently revealed. This is an annoying bug that we haven't
worked around yet. For more details:
https://gitlab.freedesktop.org/mesa/mesa/-/issues/2917

Eric

---

Andrii Simiklit (1):
      i965/vec4: Ignore swizzle of VGRF for use by var_range_end()

Bas Nieuwenhuizen (4):
      radv/winsys:  Remove extra sizeof multiply.
      radv: Handle failing to create .cache dir.
      radv: Do not close fd -1 when NULL-winsys creation fails.
      radv: Implement vkGetSwapchainGrallocUsage2ANDROID.

D Scott Phillips (1):
      anv/gen11+: Disable object level preemption

Danylo Piliaiev (3):
      meson: Disable GCC's dead store elimination for memory zeroing custom new
      mesa: Fix double-lock of Shared->FrameBuffers and usage of wrong mutex
      intel/fs: Work around dual-source blending hangs in combination with SIMD16

Dave Airlie (1):
      llvmpipe: compute shaders work better with all the threads.

Eric Engestrom (4):
      .pick_status.json: Update to a91306677c613ba7511b764b3decc9db42b24de1
      tree-wide: fix deprecated GitLab URLs
      docs: Add release notes for 20.1.0
      VERSION: bump to 20.1.0 release

Erik Faye-Lund (1):
      zink: use general-layout when blitting to/from same resource

Gert Wollny (1):
      r600: Fix duplicated subexpression in r600_asm.c

Hanno Böck (1):
      Properly check mmap return value

Icecream95 (1):
      panfrost: Fix background showing when using discard

Jason Ekstrand (3):
      nir/lower_double_ops: Rework the if (progress) tree
      nir/opt_deref: Report progress if we remove a deref
      nir/copy_prop_vars: Record progress in more places

Kristian Høgsberg (1):
      freedreno: Use the right amount of &'s

Nataraj Deshpande (1):
      dri_util: Update internal_format to GL_RGB8 for MESA_FORMAT_R8G8B8X8_UNORM

Pierre-Eric Pelloux-Prayer (1):
      amd/addrlib: fix forgotten char -> enum conversions

Rhys Perry (1):
      nir: fix lowering to scratch with boolean access

Rob Clark (1):
      freedreno: clear last_fence after resource tracking

Samuel Pitoiset (2):
      radv: handle different Vulkan API versions correctly
      radv: update the list of allowed Android extensions

Timothy Arceri (2):
      glsl: stop cascading errors if process_parameters() fails
      glsl: fix slow linking of uniforms in the nir linker

Vinson Lee (3):
      r600/sfn: Initialize VertexStageExportForGS m_num_clip_dist member variable.
      r600/sfn: Use correct setter method.
      freedreno: Add missing va_end.

git tag: mesa-20.1.0
Read more Also: Mesa 20.1 Released With Numerous Linux Graphics Driver Improvements

Android Mirroring App ‘Scrcpy’ Just Added a Bunch of New Features

If you read this blog regularly enough you’ll be familiar with scrcpy, an ace root-free way to mirror your Android smartphone on your Ubuntu desktop and interact with it. Scrcpy is free, it’s open source, it’s awesome. Oh yeah, and it’s updated regularly! Which is what this post is about: telling you what’s new and notable in the latest release, scrcpy 1.14 — so let’s get to it! Read more