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Oracle Virtualbox 5.2 got a new maintenance release a few hours ago with various video driver and build fixes for Linux additions.

Virtualbox 5.2.20 includes following changes:

  • VMM: fixed task switches triggered by INTn instruction
  • Storage: fixed connecting to certain iSCSI targets
  • Storage: fixed handling of flush requests when configured to be ignored when the host I/O cache is used
  • Drag and drop:
    • implemented support for UNC paths
    • fixed resuming operation when restoring from a saved state
    • fixed copying files with long file names (> 248 characters) from guests to Windows hosts
    • fixed handling files with Unicode names on Windows guests
    • fixed copying empty (0-byte) files to / from guests
    • fixed copying over files from hosts to Linux guests
  • Networking: restore connectivity for guests bridged to host adapters that were unavailable temporarily
  • Guest Control: fixed hang when using --wait-stdout and/or --wait-stderr. Needs updating Guest Additions
  • Video recording: fixed starting video recording on VM power up
  • Linux Additions:
    • various build fixes for kernel modules on recent distributions, and made sure modules end up in initramfs files
    • build fixes for 4.19, thank you Larry Finger
    • various small fixes for video driver

How to Install Virtualbox 5.2.20 in Ubuntu:

1. Remove old Virtualbox if any, by opening terminal (Ctrl+Alt+T) and running command:

sudo apt-get remove --autoremove virtualbox virtualbox-5.1

2. Download & install the latest Virtualbox package from the link below:

Download VirtualBox for Linux

Finally install the downloaded package via Gdebi (install it via Ubuntu Software) package manager.

3. If you’ve added the Oracle VBox repository, you can directly install the 5.2 release from Synaptic Package Manager or via apt command.

To add the repository, do:

Open terminal (Ctrl+Alt+T) and run command to add the repository:

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

for Linux Mint 19, replace $(lsb_release -sc) with bionic in the code.

Virtualbox Official Linux repository

Setup the keyring so to trust the updates from the repository:

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

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

Finally install virtualbox 5.2 via commands:

sudo apt-get update

sudo apt-get install virtualbox-5.2

With the repository added, you can simply install the future 5.2 series updates via Software Updater.

Grub Customizer, the graphical tool for configuring Grub boot-loader, got a new release a few days ago. The PPA adds support for Ubuntu 18.10 Cosmic Cuttlefish.

Grub Customizer is a simple tool that features:

  • add, remove, edit boot-loader menu entries.
  • Set default OS entry, kernel parameters, etc.
  • Change background image, text font, resolution, etc.
  • Reinstallation of the bootloader to Windows MBR

The most recent 5.1.0 release features:

  • New app icon
  • command option -v to display version info.
  • Traslation updates and some internal changes

How to Install Grub Customizer 5.1.0 in Ubuntu:

For Ubuntu 18.10, and current 3 Ubuntu LTS releases (14.04, 16.04, 18.04), install the new release packages via following steps:

1. Open terminal either from App Launcher or via Ctrl+Alt+T keyboard shortcut. When it opens, paste below command and run to add the official PPA:

sudo add-apt-repository ppa:danielrichter2007/grub-customizer

Type user password (no asterisks feedback due to security reason) when it asks and hit Enter to continue.

2. Then update package lists and install the software:

sudo apt-get update

sudo apt-get install grub-customizer

You can skip sudo apt-get update in Ubuntu 18.04 and higher, since step 1 adding PPA do it automatically.

Once installed, launch it from application menu and enjoy!


To remove the software, run command in terminal:

sudo apt-get remove --autoremove grub-customizer

And open Software & Updates and navigate to Other Software tab to remove third party PPA repositories.


Digital painting software Krita 4.1.5 was released yesterday. The new release features much improved support for scaling on hi-dpi or retina screens, and many bugs fixed.

Krita 4.1.5 release highlights:

  • Associate Krita with .ico files
  • Auto-update the device pixel ration when changing screens
  • Disable autoscrolling for the pan tool
  • Disable drag & drop in the recent documents list
  • Disable zoom-in/out actions when editing text in rich-text mode
  • Do not add template files to recent documents list
  • Do not allow creating masks on locked layers.
  • Do not close the settings dialog when pressing enter while searching for a shortcut
  • Fill polyline shapes if some fill style was selected
  • Fix Tangent Normal paintop to work with 16 and 32 bit floating point images
  • Fix a problem with namespaces when loading SVG
  • Fix an assert when right-clicking the animation timeline
  • Fix autohiding the color selector popup
  • Fix canvas scaling in hidpi mode
  • Fix the overview docker
  • Fix the shift-I color selector shortcut
  • Fix unsuccessful restoring of a session blocking Krita from closing
  • Import SVG files as vector layers instead of pixel layers
  • Improve spacing between canvas input setting categories
  • Make it possible to select the SVG text tool text has been moved inside an hidden group and then made visible again
  • Support fractional display scaling factors

How to Install Krita 4.15 in Ubuntu:

For Ubuntu 18.04, Ubuntu 18.10, and Linux Mint 19, do following steps to install the latest release from Krita Lime PPA.

1. Open terminal either via Ctrl+Alt+T keyboard shortcut or by searching for ‘terminal’ from software launcher. When it opens, run command to add the PPA:

sudo add-apt-repository ppa:kritalime/ppa

Type your user password (no asterisks feedback) when it prompts and hit Enter.

2. Then upgrade Krita via Software Updater:

upgrade krita

or run command in terminal to install or upgrade the painting software:

sudo apt install krita


To remove the PPA, launch Software & Updates and navigate to Other Software tab.

To remove Krita, run command:

sudo apt remove --autoremove krita krita-*

Download Appimage for Ubuntu 16.04

For Ubuntu 16.04, Linux Mint 18.x, grab the appimage from the link below:

Download Krita (.appimage)

Then right-click and make the appimage file executable from its ‘Properties’ dialog. Finally run the file to launch Krita.

The latest Mesa graphics driver 18.2.2 is finally available to install in Ubuntu 18.04 via Ubuntu-X PPA.

Mesa 18.2.2 was released a week ago with following changes:

  • Better GTA V support with the RADV Vulkan driver.
  • RADV fix to address a GPU hang encountered by Radeon RX Vega hardware with SteamVR.
  • vkAcquireNextImage2 support within the ANV and RADV Vulkan drivers.
  • ANV now has support for protected memory properties via GetPhysicalDeviceProperties2().
  • The Gallium3D Nine “D3D9” state tracker has increased the number of temp registers as well as other improvements.
  • A new PCI ID added for a Polaris part: 0x6FDF.
  • And various bug-fixes.

How to Install Mesa 18.2.2 in Ubuntu 18.04:

To install the latest Mesa driver, e.g., for gaming, open terminal and do following steps one by one

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

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

Type your password (no asterisks 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 repositories.

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

Guvcview (GTK UVC Viewer), a simple tool for capturing & viewing video from webcams and other v4l2 devices, reached 2.0.6 release earlier today.

Guvcview 2.0.6 is a small release with following changes:

  • Add support for resizing the render window from the command line
  • Update to new libavcodec API
  • And some bug fixes.

How to Install Guvcview 2.0.6 in Ubuntu 18.04:

The developer’s PPA so far contains the latest packages for Ubuntu 18.04, Ubuntu 18.10, Linux Mint 19.

1. Open terminal either via Ctrl+Alt+T or by searching for ‘terminal’ from software launcher. When it opens, run command to add the PPA:

sudo add-apt-repository ppa:pj-assis/ppa

Type user password (no asterisks feedback due to security reason) when it prompts and hit Enter.

2. If you’ve installed an old version from Ubuntu Software, remove it via command:

sudo apt-get remove --autoremove guvcview

3. Finally install the 2.0.6 packages from the PPA repository via command:

sudo apt-get install guvcview

Once installed, launch the UVC viewer from application menu. To check the software version, run guvcview -v command in terminal.


To remove the software, open terminal (Ctrl+Alt+T) and run command:

sudo apt-get remove --autoremove guvcview

To remove the PPA, open Software & Updates and navigate to Other Software tab.