upgrade Linux Kernel

Linux Kernel 5.5 was announced two days ago. Linus Torvalds wrote on lkml.org:

So this last week was pretty quiet, and while we had a late network update with some (mainly iwl wireless) network driver and netfilter module loading fixes, David didn’t think that warranted another -rc. And outside of that, it’s really been very quiet indeed – there’s a panfrost driver update too, but again it didn’t really seem to make sense to delay the final release by another week.

Kernel 5.5 release highlights:

  • Support for the Broadcom BCM2711 SoC (Raspberry Pi 4).
  • New Logitech driver for G15 and G510 keyboard.
  • KVM support for IBM POWER secure guests/VMs.
  • Initial Intel Jasper Lake support.
  • Intel 5-level paging support is enabled by default
  • AMD OverDrive overclocking for Navi GPUs.
  • and much more other changes.

How to Install Linux Kernel 5.5 in Ubuntu:

The mainline kernels do not include any Ubuntu-provided drivers or patches. They are not supported and are not appropriate for production use

The mainline kernel packages for Linux 5.5 are available for download at the link below:

Download Kernel 5.5

Depends on your OS type, download and install the packages in turns:

  1. linux-headers-5.5.0-xxxxxx_all.deb
  2. linux-headers-5.5.0-xxx-generic(/lowlatency)_xxx_amd64.deb
  3. linux-modules-5.5.0-xxx-generic(/lowlatency)_xxx_amd64.deb
  4. linux-image-xxx-5.5.0-xxx-generic(/lowlatency)_xxx_amd64.deb

Select generic for common system, and lowlatency for a low latency system (e.g. for recording audio), amd64 for 64bit system, or armhf, arm64, etc for other OS types.

Alternatively you can download and install the kernel binaries via terminal commands ( open terminal via Ctrl+Alt+T):

For 64-bit OS:

cd /tmp/

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5/linux-headers-5.5.0-050500_5.5.0-050500.202001262030_all.deb

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5/linux-headers-5.5.0-050500-generic_5.5.0-050500.202001262030_amd64.deb

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5/linux-image-unsigned-5.5.0-050500-generic_5.5.0-050500.202001262030_amd64.deb

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5/linux-modules-5.5.0-050500-lowlatency_5.5.0-050500.202001262030_amd64.deb

sudo dpkg -i *.deb

Note that there’s no Kernel 5.5 packages for 32-bit system.

Once installed, restart your computer and enjoy!

Uninstall Linux Kernel 5.5:

Restart your machine and select boot with the previous kernel in boot menu ‘Grub2 -> Advanced Option for Ubuntu’. Then run command to remove Linux Kernel 5.5:

sudo dpkg --purge linux-image-unsigned-5.5.0-050500-generic

MPV media player logo

MPV media player released version 0.32.0 today with some new features and various bug-fixes.

MPV 0.32.0 features RAR5 support and initial implementation of bash completion. Other changes include:

  • add support for forcing the dedicated GPU for rendering
  • add pinch to resize window gesture
  • support minimizing/maximizing using osc window controls
  • add a playlist-unshuffle command
  • add osd-dimensions property
  • new PLAYONLY and PAUSEONLY keycodes
  • various fixes for wayland
  • usability improvements for osc window controls
  • To install the latest MPV 0.32.0 in Ubuntu, besides building from the source, you may keep an eye on the Doug McMahon’s PPA, which will built the new release packages for Ubuntu 18.04, Linux Mint 19.x.

    Just open terminal (Ctrl+Alt+T) and run following command to add the PPA. And new MPV packages will be available in Software Updater after the maintainer updating the PPA.

    sudo add-apt-repository ppa:mc3man/mpv-tests

    Type user password (Ctrl+Alt+T) when it prompts and hit Enter to continue.

    To remove the PPA, either open Software & Updates and remove the repository line from ‘Other Software’ tab,

    or run previous command with --remove flag:

    sudo add-apt-repository --remove ppa:mc3man/mpv-tests

    Open Surge, a fun 2D retro platformer inspired by Sonic games, available to install in Ubuntu Software easily via Snap package.

    Open Surge is also a game creation system that lets you unleash your creativity! It’s free, open-source, and written from the ground up in C language, using the Allegro game programming library.

    You can play the using a keyboard or a joystick.

    • Arrows: Move
    • Space: Jump
    • Enter: Pause
    • Esc: Quit
    • Left Ctrl: Switch character
    • Equals: Take snapshot
    • F12: Open the editor

    Install Open Surge in Ubuntu:

    Open Surge has been made available as Snap package (runs in sandbox), Ubuntu 18.04 and higher users can easily install it from Ubuntu Software utility:

    Music notation software MuseScore 3.4 was released a day ago with new features, UX improvements, and dozens of bug fixes.

    MuseScore 3.4 release highlights:

    • Single click to apply palette elements if there is a selection in the score
    • Allow dragging notes horizontally
    • Slurs, hairpins and other elements can be edited after single click
    • Add middle adjustment handle for beams, for moving whole beam vertically
    • Introduce section break properties, bend properties, tremolo bar properties in the Inspector
    • Allow access to several properties window in the Inspector
    • Name of the newly created custom palette can be specified
    • Accessibility: improve speech for elements with spanners

    Download / Install MuseScore 3.4 in Ubuntu:

    64-bit Appimage has been updated, available for download:

    MuseScore Appimage

    Right-click on the Appimage, then go to Properties -> Permissions, check the box ‘Allow executing file as program’. Finally run the Appimage to launch MuseScore 3.4 and enjoy!

    MuseScore also available as Snap (runs in sandbox), which can be installed directly from Ubuntu Software, though it’s still v3.3.4 at the moment.

    Also the flathub repository contains MuseScore flatpak package, check the package version in the page bottom

    Kid3 audio tag editor released version 3.8.2 a few days ago. Here’s how to install it in Ubuntu 16.04, Ubuntu 18.04, and Ubuntu 19.10.

    Kid3 3.8.2 is a small but important release for those who have a lot of M4A files. The release fixes a crash that happens when frames are removed from M4A files. Additionally it brings new Catalan, Portuguese and Ukrainian translations.

    How to Install Kid3 3.8.2 in Ubuntu:

    The official Kid3 PPA has built the packages for Ubuntu 16.04, Ubuntu 18.04, and, Ubuntu 19.10.

    1. Open terminal either from application launcher or by pressing Ctrl+Alt+T on keyboard. When it opens, run command to add the PPA:

    sudo add-apt-repository ppa:ufleisch/kid3

    Type user password (no asterisk feedback) when it prompts and hit Enter to continue.

    2. If an old version was installed, upgrade Kid3 using Software Updater:

    upgrade kid3 via software updater

    or run commands one by one in terminal to install or upgrade to the latest tag editor:

    sudo apt update
    
    sudo apt install kid3-qt

    You may replace kid3-qt with kid3 in the code for KDE integration, or with kid3-cli for the command-line interface

    Uninstall

    To remove the PPA repository, either open Software & Updates -> Other Software tab, or run command:

    sudo add-apt-repository --remove ppa:ufleisch/kid3

    To remove the audio tag editor, either use your system package manager or run command:

    sudo apt remove --auto-remove kid3 kid3-*