Archives For Howtos

Mesa 3D graphics library 19.0.8 now is available to install in Ubuntu 18.04, Ubuntu 19.04 via PPA repository.

For those sticking to the open-source RadeonSI / RADV / Intel / Nouveau drivers, Mesa 19.0.8 is the latest bug-fix release for 19.0 series which fixes a critical bug found in the 19.0.7 release.

Canonical’s Timo Aaltonen has made Mesa 19.0.8 package into “Ubuntu-X” team PPA for Ubuntu 18.04 and Ubuntu 19.04.

To get better open-source graphics driver performance, you may install Mesa 19.0.8 via following steps:

1. Open terminal either via Ctrl+Alt+T keyboard shortcut or from software launcher. When it opens, run command:

sudo add-apt-repository ppa:ubuntu-x-swat/updates

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

2. After adding the PPA, do system update via command:

sudo apt-get dist-upgrade

apt-get update is not required any more in Ubuntu 18.04 since adding PPA automatically refreshes system package cache.

3. Finally check your driver version via command:

glxinfo | grep "OpenGL version"


To restore changes and downgrade to the default drives shipped in Ubuntu 18.04, run command:

sudo apt-get install ppa-purge && sudo ppa-purge ppa:ubuntu-x-swat/updates


Oracle Virtualbox 6.0.10 was released today with many improvements and fixes to Linux hosts and guests.

Virtualbox 6.0.10 release highlights:

  • Fix guest display resolution resize issue with recent Linux hosts.
  • Fixed guru meditation when raw mode is enabled
  • Fixed possible VM crash under certain circumstances
  • Fixed “unrecoverable error” problems in OHCI emulation.
  • USB: improve captured device identification
  • Support UEFI secure boot driver signing on Ubuntu and Debian hosts
  • Fix focus grabbing problems with recent Qt versions.
  • Share folder fixes for Windows hosts and guests.
  • Linux kernel module build fixes for various kernels
  • Remember Linux guest screen size after a guest reboot

How to Install Virtualbox 6.0.10 in Ubuntu:

For all current Ubuntu releases, you can either download the official .deb binary from the link below:

Download Virtualbox for Linux

or install VBox from its official apt repository:

1. Open terminal (Ctrl+Alt+T), paste below command and run to add the repository:

sudo sh -c 'echo "deb [arch=amd64] $(lsb_release -sc) contrib" >> /etc/apt/sources.list.d/virtualbox.list'

For Linux Mint, you HAVE to replace $(lsb_release -sc) in the command with bionic for Mint 19.x, or xenial for Mint 18.x.

2. Then download and install the repository key via command:

wget -q -O- | sudo apt-key add -

3. Refresh system package cache via command:

sudo apt update

4. Finally install Virtualbox 6.0:

sudo apt install virtualbox-6.0


To remove it, simply run command in terminal:

sudo apt remove --autoremove virtualbox-6.0

And go to Software & Updates -> Other Software to remove apt repositories.

Gnu Octave finally offers official Snap package for Linux desktops, so far in beta, which means you can now easily install the latest Octave via Ubuntu Software and always keep updated.

Octave snap is a containerized software package comes with run-time libraries bundled and auto-updates itself once a new version package is published.

For Ubuntu 18.04 and higher, the snap can be directly installed from Ubuntu Software utility:

Note there’re two GNU Octave in Ubuntu Software, go check the package details, and choose the one from Snap Store.

For Ubuntu 16.04, open terminal either via Ctrl+Alt+T or from application menu. When it opens, run command to install snapd daemon first:

sudo apt-get install snapd

Then install Octave via command:

sudo snap install --beta octave

Snap co-exists with legacy packages, launch it via snap run octave if both are installed.

(Optional) To remove the package, either use Ubuntu Software or run command in terminal:

sudo snap remove octave


FeedReader is modern GTK+ 3 client for online RSS services like tt-rss and others.

FeedReader currently supports Feedbin, Feedly, FreshRSS, InoReader, Local RSS, Nextcloud/ownCloud, The Old Reader, and Tiny Tiny RSS.

It combines all the advantages of web based services like syncing across all your devices with everything you expect from a modern desktop application. It also allows to save articles to read-it-later with Instapaper, Pocket, or Wallabag.

Also it lets you share articals with others via Email, Twitter, Telegram.

FeedReader in Elementary OS

FeedReader in Elementary OS

How to Install FeedReader in Ubuntu 18.04 & Higher

The software is available in universe repositories of Ubuntu 18.10, Ubuntu 19.04, Ubuntu 19.10, but they are old and won’t receive future updates.

To install the latest release in Ubuntu 18.04 and higher, open terminal either via Ctrl+Alt+T or from application menu, and run following commands one by one:

1. First run command to install the flatpak framework:

sudo apt-get install flatpak

2. Add flathub repository, which hosts a large list of flatpak applications:

flatpak remote-add --if-not-exists flathub

3. Finally install RSS client via command:

flatpak install flathub org.gnome.FeedReader

And future install updates if available via flatpak update org.gnome.FeedReader command.

(Optional) To remove FeedReader flatpak package, run command in terminal:

flatpak uninstall org.gnome.FeedReader

Gis Weather is an open-source desktop weather widget and indicator applet with highly customizable user interface.

Gis Weather is written in Python 3 with GTK+ 3. It features:

  • View weather for several days
  • Detailed weather forecast for today and tomorrow
  • Select the background and theme weather icons
  • “Compass” with the wind direction, with adjustable angle of rotation
  • Highlighting the high wind
  • Support weather services:,,

The new version 0.84 was released hours ago with updated icons, translations, and various bug-fixes.

How to Install Gis Weather in Ubuntu:

The software offers .deb package available to download at the link below:

Download Gis Weather (.deb)

Grab the package the install it by opening terminal (Ctrl+Alt+T) and run command:

sudo dpkg -i ~/Downloads/gis-weather_*.deb

Once installed launch it from your system application menu:

Choose weather service, and setup your location at first launch:

Then you can change icons, background, text font via widget’s right-click menu. And in Preferences, change units, widget location, refresh time interval, appearances, enable indicator applet, auto-start, etc.