Linux Kernel

The first maintenance release for Oracle Virtualbox 6.1 series was released one day ago.

Virtualbox 6.1.2 added kernel 5.5 support in Linux hosts (guest additions not yet), and improved resize and multi-monitor handling for Linux guests using VMSVGA.

Other changes include:

  • fixed performance issue observed with Windows XP guests on AMD hosts
  • fixed audio input handling when VRDE is enabled
  • fixed use of encrypted disks with snapshots involved
  • improve performance of virtio-scsi
  • and some Windows hosts and guests improvements and fixes.

How to Install Virtualbox 6.1.2 in Ubuntu:

For 64-bit Ubuntu 16.04, Ubuntu 18.04, Ubuntu 19.04, Ubuntu 19.10, and their derivatives, you can either download the official .deb binary from the link below:

Download Virtualbox for Linux

or install VBox from its official apt repository by running following steps:

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 6.1:

sudo apt install virtualbox-6.1


To remove it, simply run command in terminal:

sudo apt remove --autoremove virtualbox-6.1

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

The open-source LaTeX text editor TeXstudio 2.12.20 was released today as a new bug-fix release for the 2.12 series.

Most notably changes in TeXstudio 2.12.20 include fix bug when replacing highlighted search results, and add \text{} to amsmath.cwl.

How to Install TexStudio 2.12.20 in Ubuntu:

The official PPA has made the new release packages for Ubuntu 16.04, Ubuntu 18.04,
Ubuntu 19.10, Ubuntu 20.04, and their derivatives.

1. Open terminal either by pressing Ctrl+Alt+T on keyboard or by searching for ‘terminal’ from software launcher. When it opens, run command:

sudo add-apt-repository ppa:sunderme/texstudio

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

2. If an old version was installed in your system, remove the texstudio-doc, texstudio-l10n (if any) package before upgrading the software:

sudo apt-get remove texstudio-doc texstudio-l10n

3. After adding the PPA, you can either upgrade it via Software Updater:

or run commands in terminal to install or upgrade the software:

sudo apt-get update && sudo apt-get install texstudio


To remove the LaTeX editor, run command in terminal:

sudo apt-get remove --autoremove texstudio

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

Cawbird is a fork of the Corebird GTK twitter client that continues to work with Twitter on Linux.

Corebird became unsupported after Twitter disabled the streaming API. Cawbird takes up the job to work with the new APIs and includes a few fixes and modifications.

Cawbird 1.0.4 was released today as the latest version including following changes::

  • Reduce bespoke themeing and make the main bar use native colors
  • Import favourited images from Corebird
  • Fixed crash caused by Twitter sending invalid entity positions in tweet
  • Fixed tweet length error with counting prime marks (quotes)
  • Update Italian translation

How to Install Cawbird in Ubuntu:

The community maintained Cawbird Snap package, which runs in sandbox, can be easily installed from Ubuntu Software:

For those prefer native .deb package, go to the developer maintained repository at the link below:

Download Cawbird

Select Ubuntu, then click ‘Grab binary packages directly‘ and download the .deb package for your system.

Finally install the .deb via Gdebi package installer (available in Ubuntu Software) and enjoy!

Nutty is a free open-source network utility made for Linux. It monitors the devices on your network and check bandwidth and speed details.

Nutty is made for elementary OS and it works on Ubuntu. The software features:

  • Display basic and detailed information for the device network card
  • Provides network data usage in two views: historical usage and current usage
  • Check Upload and Download speeds and get route times to a host
  • Provides information on active ports and application using them on the local device
  • Monitors, alerts and provides information on the other devices connected on the network

To install Nutty in Ubuntu 16.04, Ubuntu 18.04, open terminal from application launcher or by pressing Ctrl+Alt+T on keyboard. When it opens, run following commands one by one.

1.) Run command to add the Nutty main PPA:

sudo add-apt-repository ppa:bablu-boy/nutty

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

2.) Also add Elementary OS stable PPA (can be removed later) for libgranite5 library. ()

sudo add-apt-repository ppa:elementary-os/stable

You may skip the step in UBUNTU 19.04 and higher since libgranite5 available in main repositories.

3.) Finally refresh system package cache and install the utility via command:

sudo apt update; sudo apt install com.github.babluboy.nutty

Once installed, launch the tool from your system application menu and enjoy!


You HAVE to remove the Elementary OS stable PPA as it contains many eos specific packages that may break your Ubuntu desktop.

Simply open Software & Updates utility and navigate to Other Software tab. There remove the line for Elementary OS PPA, and Nutty PPA if you want.

You can also remove Nutty network utility by running command:

sudo apt remove com.github.babluboy.nutty