Archives For Howtos

Linux Kernel 6.0 was released hours ago! Here are the new features and how to install instructions for Ubuntu 22.04.

So, as is hopefully clear to everybody, the major version number change is more about me running out of fingers and toes than it is about any big fundamental changes.Linus Torvalds announced.

New Features in Linux Kernel 6.0

The new kernel introduced experimental support of Intel’s A750 and A770 graphics card, using i915 DRM kernel driver with “force_probe” option. PCI support for LoongArch CPU architecture from China and OpenRISC architecture.

The release also added audio driver for Intel Meteor Lake, AMD Raphael and Jadeite, V3D Direct Rendering Manager (DRM) driver for Raspberry Pi 4, and Intel Software Guard Extensions (SGX) support.

Other changes include:

  • Support Lenovo ThinkPad X13s Arm laptop
  • Low-memory mode support for F2FS file system.
  • Habana Labs Gaudi2 Support
  • XP-PEN Deco L Drawing Tablet support.
  • Fix touchpad & keyboard issues after suspend for many TUXEDO laptops

How to Install Linux Kernel 6.0 in Ubuntu:

NOTE: Mainline Kernel packages are neither officially supported and nor appropriate for production use. Install it only for testing or certain use.

Ubuntu builds the latest Kernel packages via Mainline Kernel PPA. For Linux Kernel 6.0, download the packages from the link below:

Select download amd64 packages for modern 64-bit PC/laptop, or armhf/arm64 for ARM devices such as Apple Silicon and Raspberry Pi. And, install them one by one in the turns below:

  1. linux-headers-6.0.0-060000_***_all.deb
  2. linux-headers-6.0.0-060000-generic_***.deb
  3. linux-modules-6.0.0-060000-generic_***.deb
  4. linux-image-unsigned-6.0.0-060000-generic_***.deb

To download & install the packages from command line, open terminal (or connect to console) and run the commands below one by one (for 64-bit only):

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v6.0/amd64/linux-headers-6.0.0-060000_6.0.0-060000.202210022231_all.deb

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v6.0/amd64/linux-headers-6.0.0-060000-generic_6.0.0-060000.202210022231_amd64.deb

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v6.0/amd64/linux-modules-6.0.0-060000-generic_6.0.0-060000.202210022231_amd64.deb

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v6.0/amd64/linux-image-unsigned-6.0.0-060000-generic_6.0.0-060000.202210022231_amd64.deb

sudo apt install ./linux-*.deb

After installing the Kernel packages, restart your machine and enjoy!

Uninstall:

To restore the previous Kernel, start or restart your machine. In the system boot-menu, go to “Advanced” and select booting the previous kernel.

After booting the old kernel, run command below to remove Linux 6.0:

sudo apt remove linux-headers-6.0.0* linux-modules-6.0.0* linux-image-unsigned-6.0.0*

After more than 20 years of development, the popular planetarium ‘Stellarium’ finally reached 1.0 release.

Stellarium 1.0 is the first released ported to Qt6 framework, though Qt5 is still supported! It features:

  • A new, much better skylight model, but MacOS and OpenGL ES2 not supported.
  • Many details around eclipses
  • Updated Observation List features
  • New features in AstroCalc tool
  • HiDPI improvements
  • Better dithering
  • Able to use Windows location service
  • New skyculture: Samoan
  • Updated several skycultures
  • Updates in Angle Measure, Satellites, Oculars, Remote Control, Pulsars plugins

See the release note for more about Stellarium 1.0.

How to Install Stellarium 1.0 in Ubuntu Linux

Stellarium is available to install in Ubuntu via Snap, AppImage, and PPA repository. They are built against Qt5 toolkit though.

Snap package

Snap is a software package runs in sandbox. Though it’s quite easy to install for lazy men. Simply, search for and install it from Ubuntu Software:

Stellarium Snap Package in Ubuntu Software app

Ubuntu PPA

For those who prefer the native .deb package, the official PPA has built the packages for Ubuntu 20.04, Ubuntu 22.04, and Ubuntu 22.10.

First, press Ctrl+Alt+T on keyboard to open terminal. When it opens, run the command below to add the PPA:

sudo add-apt-repository ppa:stellarium/stellarium-releases

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

Linux Mint user may also run the command below to refresh package cache:

sudo apt update

Finally, install the planetarium software via command:

sudo apt install stellarium

AppImage

AppImage is a non-install portable package that can be run directly to launch software app.

First, make sure your system has enabled AppImage support by opening terminal (Ctrl+Alt+T) and run command:

sudo apt install libfuse2

Then, download the AppImage from github releases page (under ‘Assets’):

Finally, right-click on the package, go to ‘Properties’ and make it executable via the tick-box under ‘Permissions’ tab. Finally, click run it to launch Stellarium:

Uninstall Stellarium

Depends on which package you installed, uninstall Stellarium snap from Ubuntu Software, or remove AppImage file from file manager.

For the PPA package, open terminal (Ctrl+Alt+T) and run command to remove it:

sudo apt remove --autoremove stellarium

And remove the PPA repository either by running the command below:

sudo add-apt-repository --remove ppa:stellarium/stellarium-releases

or use ‘Software & Updates’ utility by removing the source line under ‘Other Software’ tab:

Ubuntu 22.10, code name ‘Kinetic Kudu’, is now in beta stage. The final release expected on October 20, 2022. See what’s new in the next release of the popular Linux distribution.

Ubuntu 22.10 features Linux Kernel 5.19 with new hardware support. The default desktop environment is GNOME 43, that features a new flat system menu.

Ubuntu 22.10 new system menu

The ‘Background’ settings tab has been removed from Gnome Control Center. Instead, user can choose wallpaper using the ‘Appearance’ tab. And, a new ‘Ubuntu Desktop’ tab is present for the dock and desktop icons settings.

New Ubuntu Desktop settings tab

Files app (aka Nautilus) has been ported to GTK4 plus LibAdwaita, so it has adaptive UI that show/hide left sidebar automatically according to app window size. In addition, the “undo” pop up has been moved to bottom in file manager, which no longer interrupt your workflow. Context (right-click) menu, file properties, and about dialog have been redesigned with touch-friendly UI.

Ubuntu 22.10 Desktop finally uses Pipewire as default sound server instead of Pulseaudio. WebP image format is supported out-of-the-box. And, gedit has been replaced with GNOME Text Editor.

Other changes in Ubuntu 22.10 include:

  • Files (Nautilus file manager) now support Undo/Redo actions.
  • Support light/dark wallpaper in Appearance settings page.
  • No longer pre-install GNOME To Do, and remove Gnome-books from system repository.
  • Click app icon on dock to switch windows if multiple instances opened.
  • New icon in top-right system menu to launch screenshot UI

Compare to Ubuntu 22.04 LTS, Ubuntu 22.10 runs apparently faster and smoother, especially when switching light and dark theme and accent colors. It however has only 9 months of life as a short term release.

Download Ubuntu 22.10:

Ubuntu 22.10 desktop and server .iso images are available to download at the link below:

Ubuntu 22.04 users can now upgrade to this Beta by following the official guide. Though, it’s recommended to disable third-party repositories, PPAs, and uninstall proprietary drivers before doing the upgrade process.

For more about Ubuntu 22.10, see the official release note.

Avidemux video editor released version 2.8.1 a few days ago. Here’s the new features and how to install instruction for Ubuntu 22.04 and Ubuntu 20.04.

The new release improved HiDPI displays support by updating the icon set, and using OpenGL for rendering on-the-fly preview in video filter dialog.

Avidemux 2.8.1 also introduced new filters: 3D LUT, Decimate, and Arbitrary Rotate, as well as new video encoder: VideoToolbox HEVC for macOS users.

It also added support for decoding 8-bit VP9 on Windows using DXVA2 and Linux using VDPAU with graphics card that features a VP9 decoder.

Avidemux Dark Theme

Other changes include:

  • Light and Dark themes in ‘View’ menu.
  • CTRL+F shortcut to add partial filters.
  • configurable compressor
  • 3-band equalizer
  • independent channel gain/delay options
  • channel remap options
  • new downmix options
  • audio track configuration up to 32 tracks
  • save volume settings on exit.
  • See release note for more details.

How to Install Avidemux 2.8.1 in Ubuntu Linux

Option 1: AppImage

The video editor software offers official Linux package via non-install AppImage, available to download at the link below:

Just grab the package, right-click and go to it’s “Properties” dialog, add executable permission and finally click run the package to launch the video editor.

Avidemux AppImage

Ubuntu 22.04 & Ubuntu 22.10 however does not support AppImage out-of-the-box. To enable it, open terminal (Ctrl+Alt+T) and run command:

sudo apt install libfuse2

Option 2: Ubuntu PPA

For those prefer the native .deb package format, the Avidemux website refers to this unofficial PPA.

1. First, press Ctrl+Alt+T on keyboard to open a terminal window. When it opens, run command to add the PPA:

sudo add-apt-repository ppa:xtradeb/apps

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

The PPA however offers the latest packages for only Ubuntu 22.04. For Ubuntu 20.04 and old Ubuntu 18.04, you may use this one instead:

sudo add-apt-repository ppa:ubuntuhandbook1/avidemux

2. After adding the PPA, run the command below to update package cache for old Ubuntu or Linux Mint:

sudo apt update

3. Finally install the software by running the command below in terminal:

sudo apt install avidemux-qt

Uninstall Avidemux

For the video editor packages installed from Ubuntu PPA, remove it by running command in terminal:

sudo apt remove --autoremove avidemux-qt

And, remove the Ubuntu PPA either via command below:

sudo add-apt-repository --remove ppa:ubuntuhandbook1/avidemux

or by using ‘Software & Updates’ utility.

Pithos, native Linux client for Pandora Radio, got a new release update few days ago. Here’s how to install it in Ubuntu 22.04, Ubuntu 20.04 & Ubuntu 18.04 via PPA.

It’s been almost 2 years since the last release update. The new Pithos 1.6.0 now uses the GNOME style client-side decorations (CSD) for its header bar, instead of the old title bar. So, the app UI will look like the screenshot below:

Pithos 1.6.0

Plus rounded window corner extension, it now looks good in recent Ubuntu releases.

This release also adds Ctrl+r shortcut to open stations popover, removes access to host keyring when in flatpak. And, libappindicator is no longer required as dependency as it now supports status notifier directly.

How to Install Pithos 1.6.0 in Ubuntu:

For current 3 Ubuntu LTS releases and their based systems, I’ve uploaded the software package into this unofficial Ubuntu PPA.

1. First, press Ctrl+Alt+T key combination on keyboard to open terminal. When it opens, run the command below to add the PPA:

sudo add-apt-repository ppa:ubuntuhandbook1/apps

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

2. Then, run command to fresh the package cache for old Ubuntu 18.04 and Linux Mint:

sudo apt update

3. Finally, install or update the lightweight Pandora Radio client to listen online music:

sudo apt install pithos

As the application does not update frequently, you may also download & install the .deb package directly from this page.

Uninstall Pithos

To remove the Ubuntu PPA, open terminal and run command:

sudo add-apt-repository --remove ppa:ubuntuhandbook1/apps

Or, open ‘Software & Updates’ utility and remove the source line under ‘Other Software’ tab.

To remove Pithos, use command:

sudo apt remove --autoremove pithos