News, Tutorials, Howtos for Ubuntu Linux
For Ubuntu 24.04 and its based systems, the Mainline Kernel PPA finally fixed building recent Kernel packages since v6.10.3.
The Mainline Kernel PPA is Ubuntu maintained package archive that keeps building the upstream Linux Kernel releases for testing purpose.
The recent builds since v6.10-rc3 were broken due to unknown reason. If you’re waiting for the fix for it, the latest build for Kernel 6.10.3 is backing for working again.
This tutorial shows how to install the guest additions for Debian, Ubuntu, Linux Mint based systems that are running as Virtualbox virtual machine.
Guest Additions is an external package designed to be installed inside a VirtualBox guest OS. It enables closer integration between the host and guest OSes, including features such as shared folder, custom video drivers, seamless window mode, and more.
Guest Additions is not installed by default after installed your system as virtual machine. It’s however easy to install through the official CD image.
Ubuntu 24.04 Guest OS in VirtualBox
Scrcpy, the free open-source Android screen mirroring app, released version 2.6 (then 2.6.1 with quick fix) a few days ago.
Scrcpy is an app works on Linux, Windows, and macOS, allowing users to remote access and control their Android screen from PC/laptop, either wirelessly through TCP/IP in same network or wired with USB cable.
It uses Android Debug Bridge (adb) to communicate with Android device. Nothing needs to be installed on Android side, but it needs to enable developer mode for USB debugging option which is required by adb.
This is a step by step tutorial shows how to encrypt Ubuntu, while preserving its data, after you installed it on your computer.
While installing Ubuntu 24.04, if you didn’t choose to use the entire disk, then there’s no graphical option to enable encryption. You can however manually encrypt the full Ubuntu system afterward.
So, on every boot of the Ubuntu system, it asks to input password to unlock boot entry (if /boot partition is also encrypted), then asks again to unlock disk partition before user being able to login.
it asks password twice to unlock boot entry & then root partition
NVIDIA has announced new 555.58 driver release for more than a month. Here’s how to install it in Ubuntu 24.04, Ubuntu 22.04, Ubuntu 20.04, and their based systems.
NVIDIA 555 so far is the latest new feature branch driver for Linux. It uses GSP firmware by default on all GPUs that support it. The GSP (GPU System Processor) acts like a CPU embedded into the GPU that can offload GPU initialization and management tasks.
The new driver enabled HDMI 10 bits per component support by default. It also has better Wayland support. It now has less screen tearing, and supports linux-drm-syncobj-v1 protocol for explicit synchronization in EGL. For more about the new driver, see the release page.
This tutorial shows how to install and setup RetroArch to play classic video games, including Arcade, Atari, Commodore, Nintendo, Sony Playstation games, in Ubuntu PC or laptop.
RetroArch is a free open-source cross-platform front-end for emulators, game engines, media players, and other applications. It’s the reference frontend for the libretro API, that offers several uncommon technical features, such as multi-pass shader support, real-time rewinding, and video recording.
This is a beginner’s guide shows you how to enable, disable, and configure firewall in Ubuntu using UFW.
Firewall is a network security system that monitors incoming and outgoing network traffic, and decides whether to allow or block specific traffic based on pre-defined security rules.
Linux Kernel has the Netfilter subsystem, which is implemented as a packet filter and firewall. Iptables (and nftables, the successor of iptables) is the user-level command line tool to configure the firewall by adding/removing netfilter rules.
Iptables (and nftables) is much more flexible but really hard for beginners. UFW (Uncomplicated Firewall), the user-friendly front-end for iptables, is which I’m going to talk about below.
Image by Pete Linforth from Pixabay
Ubuntu 24.04 has a new circular arrow indicator icon in top right system tray, when there are available system updates. By clicking on it allows to quickly launch Software Updater (Update Manager) tool for installing updates.
If you don’t like that indicator icon, here’s how to disable it, as well as stop checking for updates automatically.
Indicator icon reminding there are system updates
Darktable, the popular raw image processing software, released new 4.8.1 version few days ago.
This is the first minor release for the current 4.8 release series, which contains only bug-fixes. The release fixed the issue that export without high quality sampling but with up-scaling activated, crash when using the -d imageio option, and image jump if collection is empty.
There are as well fixes for importing/exporting issues, including large image exports due to a bug in finalscale module, JPEG2000 loading issue due to unspecified color space, and empty lighttable when importing from command-line. For more, see the official release note.
Want to chat with AI models locally without internet connection? Here’s a simple app can do the job in Linux Desktop!
It’s Alpaca, a free open-source application written in Python programming language. It uses Ollama as backend to manage and chat with multiple AI models, without needing any API keys.
By using GTK4 plus Adwaita toolkits, it provides a modern and simple graphical interface that’s well integrated into Ubuntu, Fedora Workstation and other Linux with GNOME desktop.
