Archives For Howtos

Cinnamon

Linux Mint’s Cinnamon desktop has tagged its 4.0 release for more than a weeks. For those who want to try out new desktop release, here’s how to install Cinnamon 4.0 in Ubuntu 18.04.

Cinnamon 4.0 is not officially announced at the moment. It’s mentioned in the last Linux Mint blog post:

  • New panel layout, you’ll have the option to embrace the change or to click a button to make Cinnamon look just like it did before.
  • Ability to define a different icon size for each of the three panel zones
  • Mint-Y-Dark now is the default Cinnamon theme.
  • Support for mainline kernels was added to the Update Manager.
  • reduced system memory consumption, and various other changes.

Install Cinnamon 4.0 via PPA in Ubuntu 18.04:

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

sudo add-apt-repository ppa:trebelnik-stefina/cinnamon

Type your password (no asterisks feedback) for sudo prompt and hit Enter to continue.

2. Then install Cinnamon desktop via command:

sudo apt install cinnamon

Once installed, log out and login with Cinnamon session.

Uninstall:

To remove Cinnamon desktop, run command:

sudo apt remove --autoremove cinnamon cinnamon-desktop-data nemo

To remove the PPA, either go to Software & Updates -> Other Software, or run command:

sudo add-apt-repository --remove ppa:trebelnik-stefina/cinnamon

GIMP extra color palettes

GIMP image editor released version 2.10.8 a few days ago. Now you can install it in Ubuntu 16.04, Ubuntu 18.04, Ubuntu 18.10, Linux Mint 18.x / 19.

GIMP 2.10.8 release highlights:

  • Adaptative chunk size when rendering projections, improving responsiveness dynamically
  • Detection of RawTherapee (version 5.5 and above) improved on Windows
  • XCF compatibility information in the Save dialog more understandable and discoverable
  • Various performance log tools added and log recording made available in the Dashboard dock
  • Port all plug-ins to the new iterator API in GEGL.
  • Improve automatic detection of HEIC/HEIF files.
  • And many other changes.

GIMP 2.10 Splash

How to Install GIMP in Ubuntu via PPA:

For Ubuntu 18.04, Ubuntu 18.10, and Linux Mint 19, you can upgrade the official GIMP package to 2.10.8 via PPA.

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

sudo add-apt-repository ppa:otto-kesselgulasch/gimp

Type your password (no asterisks feedback) for sudo prompt and hit Enter to continue.

2. After adding the PPA via step 1, launch Software Updater (Update Mananger) to update GIMP package:

or simply run command to install the latest GIMP from the PPA:

sudo apt install gimp

3. (Optional) To remove the PPA repository, either go to Software & Updates -> Other Software, or run command in terminal:

sudo add-apt-repository --remove ppa:otto-kesselgulasch/gimp

How to Install GIMP in Ubuntu via Snap:

Due to dependency issue, the PPA does no longer support Ubuntu 16.04, Linux Mint 18.x. As an alternative, you can install GIMP Snap package, containerized software package with all dependencies bundled.

For Ubuntu 18.04 and higher, skip following steps and install ‘GIMP snap’ directly from Ubuntu Software Center.

1. Open terminal (Ctrl+Alt+T) and run command to install snapd daemon:

sudo apt install snapd snapd-xdg-open

2. Then install GIMP snap package via command:

sudo snap install gimp

Note you may have two GIMP icons in app launcher, as the snap co-exist with the legacy GIMP package. You can either remove old GIMP package, or run the snap via command snap run gimp.

3. To remove the snap package, run command:

sudo snap remove gimp

In addition, GIMP also available as flatpak package that GIMP download page refers to all Unix-like systems.

Virtualbox

A new maintenance release for Oracle VirtualBox 5.2 was released a day ago with audio and Linux additions fixes.

VirtualBox 5.2.22 release highlights according to the changelog:

  • Fixed a regression in the Core Audio backend causing a hang when returning from host sleep when processing input buffers
  • Fixed a potential crash in the HDA emulation if a stream has no valid mixer sink attached
  • Fixed an incompatibility with recent versions of Windows 10
  • Fixed a number of brigded networking driver crashes for Windows hosts.
  • Linux Additions:
    • Disable 3D for recent guests using Wayland
    • Fix for rebuilding kernel modules for new kernels on RPM guests
    • Further fixes for Linux 4.19
    • Fixed errors rebuilding initrd files with dracut on EL 6
    • Fixed 5.2.20 regression: guests not remembering the screen size after shutdown and restart

How to Install Virtualbox 5.2.22 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 http://download.virtualbox.org/virtualbox/debian $(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 https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -

wget -q https://www.virtualbox.org/download/oracle_vbox.asc -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.

GIMP extra color palettes

GIMP image editor 2.10.8 was released yesterday with rendering improvements, various bug-fixes and plugins ported to new iterator API in GEGL.

GIMP 2.10.8 announcement is not ready at the moment. Here’s the changes according to the NEWS file:

  • Use adaptive chunk size instead in GimpProjection when rendering the projection asynchronously, to provide a better trade-off between throughput and responsiveness dynamically, based on how fast the processing is.
  • In all selection tools, show error on attempt to subtract-from/intersect-with empty selection.
  • Fix text along path not working with vertical text.
  • Fix Text tool’s frame position when undoing a move operation.
  • Streamline Text tool’s drawing blocking/unblocking logic.
  • When moving a text layer using the text tool (through alt+drag), don’t change the layer’s box mode to “fixed”, which is unnecessary, since the layer’s size isn’t affected.
  • Transform and deformation operations now maintain color for fully transparent pixels, making unerase and curves manipulation of alpha channel more reliable.
  • All transform tools now apply changes when you save or export/overwrite an image without pressing Enter first to confirm changes.
  • Fix wrong application position when painting on a drawable whose origin is above/to the left of the image’s origin, and there’s a selection active.
  • Port all plug-ins to the new iterator API in GEGL.
  • Improve automatic detection of HEIC/HEIF files.
  • Improve RawTherapee discovery by looking up registry key

How to Install GIMP 2.10.8 in Ubuntu:

The latest GIMP Ubuntu packages will be available via following 3 ways: (Be patient, the packages will be available in a few days):

Method 1. Otto Meier’s PPA maintains most recent GIMP packages for Ubuntu 18.04 and Ubuntu 18.10.

Adding the PPA (open terminal via Ctrl+Alt+T and run command) allows to upgrade the stock GIMP version to the latest.

sudo add-apt-repository ppa:otto-kesselgulasch/gimp

Method 2. GIMP also available Snap, containerized software package, for Ubuntu 16.04 and higher.

You can check available GIMP snap package version via command: snap find gimp.

To install the snap package, simply search for and install GIMP snap from Ubuntu Software. Or run command in terminal:

snap install gimp

Method 3. GIMP flatpak, containerized software package, is available for Ubuntu 16.04 and higher. See HERE for details.

gnome shell

Ubuntu 18.10 was released with great new desktop theme ‘Yaru’. However, there are always some people prefer old Ubuntu desktop look.

And it’s easy to restore the old desktop theme in Ubuntu 18.10 via following steps.

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

sudo apt install light-themes

Type user password (no asterisks feedback) for sudo prompts and hit Enter.

2. Install Gnome Tweaks if you don’t have it:

3. Finally launch Gnome Tweaks and navigate to Appearance tab.

There set themes to:

  • Applications -> Ambiance
  • Cursor -> DMZ-White
  • Icons -> Ubuntu-mono-dark

That’s it. To revert the changes, simply set those values back to Yaru in step 3.