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This Indicator Shows Laptop’s Battery Health in Ubuntu 20.04, 21.10

Last updated: January 18, 2022 — Leave a comment

Want to check your laptop battery status in Ubuntu or other Linux? There’s a small indicator applet that can do the job in GNOME desktop.

“Battery Status” is the free and open-source indicator applet developed by Lorenzo Carbonell, a software developer behind touchpad-indicator and my weather indicator.

It displays an icon on GNOME top bar in system tray area, along with the battery remaining time. By clicking on the applet, it shows battery percentage based on both current and original maximum capacities.

As well, it shows battery health via current and original maximum capacities, and the original and current Voltages.

Battery Health

A setting dialog is also available to configure the refresh time, warning, and colors, etc.

Battery Status Settings

How to Install ‘Battery Status’ in Ubuntu:

The app is available to install as GNOME Extension. At the moment, it supports for Gnome 3.36 and Gnome 40. Which means, user may install it in Ubuntu 20.04 and Ubuntu 21.10 via following steps.

1. Install ‘chrome-gnome-shell’:

Firstly, press Ctrl+Alt+T on keyboard to open terminal. When it opens, run command to install the ‘chrome-gnome-shell’ package if you don’t have it:

sudo apt install chrome-gnome-shell

This package enables ability to install Gnome Extensions via a web browser.

2. Install the Extension:

Next, click the link button below to go to the extension web page and turn on the slider icon to install it:

Install Battery Status

If you don’t see the toggle icon, install the browser extension via the link in that page and refresh it.

NOTE: The pre-installed Firefox in Ubuntu 21.10 is a Snap package that does NOT support for installing Gnome Extensions so far. Use another browser or install Firefox as deb.

The indicator should appear immediately after installation. If not, try to enable it via “Gnome Extensions” app, which can be installed via command:

sudo apt install gnome-shell-extension-prefs

That’s all. Enjoy!

In Howtos battery

Mumble 1.4 Released! New Plugin Framework, TalkingUI, PipeWire & Markdown Support

Last updated: January 17, 2022 — Leave a comment

The free open-source game chatting app Mumble released new major 1.4 version a day ago with exciting new features!

Mumble is a high quality and low latency voice over IP (VoIP) app designed for gamers. By releasing v1.4.230, the first stable in v1.4, it now uses new versioning scheme of the form major.minor.build. The third component of version numbers may now much higher and discontinuous. Because there are snapshot (beta) builds in between stable versions.

Mumber 1.4 introduced a new, general purpose plugin framework. Plugins are no longer restricted to positional data delivery and they can now be installed and updated at any time. See the documentation for more.

The release also added a “Search Dialog“, allows to search users or channels with regular expression support. User may open it either from menu or Ctrl+F keyboard shorcut.

Mumble 1.4 Search Dialog

User may now “listen to” a channel without joining it. Though listener will be visible in the channel’s user-list via an “ear” or a “listener”. In order to speech to people in listened channel, you have to either join the channel or shout to it.

Listen to a channel without joining it

To quickly find out who’s currently talking, “TalkingUI” is introduced in the release. It’s an optional floating window automatically resizes itself to the minimal size needed to display the information. It can be placed in the corner without taking too much of your screen. And, just like the main UI, it supports selection and context menu.

floating window indicates who’s currently talking

Other changes in Mumble 1.4 include:

Markdown support for text messages.
stereo audio (restricted to playback so far).
Set nicknames for users.
“Join user’s channel” context menu option.
Reset all settings at once.
Disable text-to-speech for specific user.
Echo Cancellation for macOS (experimental).
Native PipeWire support.
Indicate “access-restricted” channels with a lock icon
And much more.

Download / Install Mumble:

Mumble is available to install in Windows, MacOS, Linux, as well as iOS and Android mobiles. Download it at the link below:

Download Mumble

For Ubuntu / Linux Mint users, there’s an official PPA though not updated at the moment of writing.

It’s as well available to install in most Linux via universal Flatpak package.

In Howtos chat

‘Secrets’ – Modern Simple GTK4 App to Store Your Passwords in Ubuntu / Fedora

Last updated: January 16, 2022 — Leave a comment

Looking for an app to store your passwords? Secrets is a good choice for those using GNOME desktop.

“Secrets” is a free open-source password manager that integrates perfectly with GNOME desktop and provides a modern and easy to use user interface. It’s formerly Password Safe (nothing to do with pwsafe). Since v6.0, it’s called Secrets.

Secrets:

Secrets is a GTK4 app using libadwaita library to provide an adaptive UI. With it, user may create or open KeePass v4 format database in “.kdbx” files. And, it supports AES, Twofish, and ChaCha20 256-bit encryption algorithms.

Secrets add new or open database

The “.kdbx” file is used to store your passwords. While creating it, user may choose to secure it via password, key file, or password and key combination.

Secure database with password, key, or their combination

Then, each time you open the database or back from inactive, it asks for unlock the database before accessing your passwords.

Need to unlock when back from inactive

After creating / opening a database, user may add as many password entries or groups as possible. It allows to assign a color, icon, and add attachments for each entry. As well, it supports OTP tokens and expiration dates.

Assign color, icon, add attachments, & support one-time password, expiration date

All password entries are listed in the home of the database, with buttons to quickly copy username or password into clipboard. And, the data will be cleared from clipboard 30 seconds later.

Password Entries

Install Secrets:

Actually I don’t use a password manager app, because I use similar accounts and passwords in different websites. And, I wrote them down in plain text 😓. The Gnome Secrets looks really good. Maybe I’ll store passwords with it. The only downside however is that it’s only available via Flatpak package.

1. Open terminal by searching from ‘Activities’ overview. When it opens, run command to install the flatpak daemon:

sudo apt install flatpak

2. Next, install the app via command:

flatpak install https://dl.flathub.org/repo/appstream/org.gnome.World.Secrets.flatpakref

There will be hundreds of MB more install, if you’re first time installing GTK apps via Flatpak.

Once installed, search for and open it from ‘Activities’ overview and enjoy!

Uninstall Secrets:

To remove the app, simply open terminal and run command:

flatpak uninstall --delete-data org.gnome.World.Secrets

And run flatpak uninstall --unused to remove useless runtime libraries.

In Howtos password

How to Install Linux Kernel 5.16 in Ubuntu 20.04 & 21.10

Last updated: January 14, 2022 — Leave a comment

Linux Kernel 5.16 was released a few days ago. Here’s how to install it in Ubuntu 20.04, Ubuntu 21.10, and/or Linux Mint 20.x.

Kernel 5.16 comes with many new features. Here are some of them:

Initial DisplayPort 2.0 Support For AMD Radeon Driver.
Intel Protected Xe Path for Gen12 graphics.
Intel AMX support for Sapphire Rapids.
Raspberry Pi Compute Module 4 support.
Snapdragon 690 and other new Arm hardware support such as Rockchip RK3566 and RK3688.
Better support for the Sony PlayStation 5 controller.
Better support for HP Omen laptops.
Realtek RT89 WiFi driver
Support for 2021 Apple Magic Keyboard.
Apple M1 PCIe driver

How to Install Kernel 5.16 in Ubuntu 21.10:

NOTE: The Mainline Kernel PPA provides packages for Ubuntu 21.10. However, it does not include any Ubuntu-provided drivers or patches, which are NOT appropriate for production use.

The .deb packages for amd64, arm64, ppc64el and s390x are available to download at the link below:

Download Kernel 5.16

For personal computers, select generic for common system, or lowlatency for a low latency system (e.g. for recording audio):

linux-headers-5.16.0-xxxxxx_all.deb
linux-headers-5.16.0-xxx-generic(/lowlatency)_xxx_amd64.deb
linux-modules-5.16.0-xxx-generic(/lowlatency)_xxx_amd64.deb
linux-image-xxx-5.16.0-xxx-generic(/lowlatency)_xxx_amd64.deb

Keep an eye on the date in package names. 64-bit build has two versions of same package with different package date.

For those familiar with Linux command, open terminal and run commands one by one to download & install the packages:

cd /tmp/

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.16/amd64/linux-headers-5.16.0-051600_5.16.0-051600.202201092355_all.deb

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.16/amd64/linux-headers-5.16.0-051600-generic_5.16.0-051600.202201092355_amd64.deb

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.16/amd64/linux-image-unsigned-5.16.0-051600-generic_5.16.0-051600.202201092355_amd64.deb

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.16/amd64/linux-modules-5.16.0-051600-generic_5.16.0-051600.202201092355_amd64.deb

sudo dpkg -i *.deb

Once installed, restart your computer and enjoy!

Uninstall Linux Kernel 5.16:

Restart your machine and select boot with the previous kernel in boot menu ‘Grub2 -> Advanced Option for Ubuntu’. Then run command to remove Linux Kernel 5.16:

sudo dpkg --purge linux-image-unsigned-5.16.0-051600-generic

Install Kernel 5.16 for Ubuntu 20.04:

The mainline kernel was build against Ubuntu 21.10, so it won’t install in Ubuntu 20.04 LTS. However, for those insist on installing the new kernel, this project is available along with an Ubuntu PPA. Use it at your own risk!

You may run command in terminal to add the PPA:

sudo add-apt-repository ppa:tuxinvader/lts-mainline

Once the Kernel 5.16 package is updated, use command to install it:

sudo apt install linux-generic-5.16

NOTE: Linux Kernel keeps rolling new releases regularly. The PPA package name varies according to the version number. It’s better to check the PPA page before running the apt command.

In Howtos kernel

How to Quickly Find Mouse Pointer in Ubuntu 20.04 / 21.10

Last updated: January 13, 2022 — Leave a comment

For Ubuntu 20.04+ and other Linux with GNOME desktop (e.g., Fedora workstation, Debian and Arch Linux), there’s an extension lets you quickly locate mouse pointer.

The extension is called “Jiggle“. It highlights the mouse pointer position when it moved rapidly by applying 3 cool animation effects: Cursor Scaling, Spotlight, and Fireworks.

Cursor Scaling animation. Original pointer can be turned off

Fireworks effect

spotlight animation

User may choose one of the three effects to function. And each has options to configure the shake threshold, speed, and other settings.

Choose effect & change the “Shake Threshold”, etc.

Install Jiggle extension:

The extension at the moments supports for Gnome 3.36, 3.38 and 40. Though it works on GNOME 41 as reported.

1. Install Gnome Extensions App:

Before installing the extension, press Ctrl+Alt+T on keyboard to open terminal. When it opens, run command to install the ‘chrome-gnome-shell’ and ‘gnome-shell-extensions-prefs’ packages:

sudo apt install chrome-gnome-shell gnome-shell-extensions-prefs

The first package is required for installing Gnome Extensions from web browser in Ubuntu based system. The latter installs the app for managing extensions.