HP printers and scanners on Rocky Linux, CentOS, or RHEL require the HPLIP (HP Linux Imaging and Printing) package. This guide covers the complete setup process. Install HPLIP packages Start by installing the core HPLIP packages: sudo dnf install hplip hplip-gui hpijs On older CentOS 7 systems, use yum instead of dnf. HPLIP may prompt…
MATE Desktop provides a traditional GNOME 2-style interface that many users prefer over modern GNOME Shell. Here’s how to install it on Linux Mint 17 Qiana. Install MATE Desktop sudo apt-get update sudo apt-get install mate-desktop-environment For the full MATE experience with extras: sudo apt-get install mate-desktop-environment-extras This adds additional applets, themes, and utilities not…
Webpages often render differently when printed than on screen. Firefox’s developer tools make it straightforward to preview and debug print stylesheets without wasting paper. Using the CSS Media Type Emulator The fastest way to test print styles in Firefox: Open DevTools with F12 Click the Inspector tab (usually open by default) Look for the “Emulate…
mpv is a powerful media player for Linux that supports looping videos with minimal configuration. Here’s how to loop videos in fullscreen mode using mpv. Loop a Single Video The simplest way — use the –loop flag: mpv –fullscreen –loop video.mp4 –loop replays the video infinitely. To loop a specific number of times: # Loop…
Firefox on iOS has improved significantly since the early days, but understanding what syncs and what doesn’t remains important for managing bookmarks across devices. Current sync capabilities As of 2026, Firefox sync does support bookmarks across iOS and desktop, but with important limitations. When you enable Firefox sync on your iOS device and link it…
PowerPoint’s export function defaults to 96 DPI, which is suitable for screen display but inadequate for printing posters, documents, or any material requiring high resolution. While PowerPoint includes DPI settings, they’re often unreliable or have limited effect on TIFF output. Here are the practical methods to generate proper high-DPI TIFF files from PowerPoint slides. PowerPoint’s…
The free command—along with ps, top, kill, pgrep, and dozens of other system utilities—is maintained as part of the procps-ng project. Source repository The source code is hosted at: https://gitlab.com/procps-ng/procps You can clone it with: git clone https://gitlab.com/procps-ng/procps.git cd procps Most distributions package procps-ng, so you likely already have it installed. You can verify the…
The window.open() method is the standard way to open URLs in a new browser window or tab. Here’s how to use it effectively in modern JavaScript. Basic Usage To open a URL in a new window or tab: const url = “https://www.systutorials.com”; window.open(url); Most modern browsers will open this in a new tab by default,…
Windows 7 stuck in an update loop—where Windows Update fails repeatedly and triggers automatic reboots—is a frustrating problem that stems from a corrupted or problematic update package. The system keeps attempting to install the same failed update on each boot, creating a cycle you can’t escape without intervention. Identify the Problematic Update The first step…
Vim supports Xterm 256-color codes on Linux and modern terminals. Understanding the color palette and how to use it in your configuration is essential for building readable syntax highlighting schemes and custom colorschemes. The 256-Color Palette Xterm’s 256-color mode consists of: Colors 0-15: Standard ANSI colors (black, red, green, yellow, blue, magenta, cyan, white, and…
When you compile or run screen on a remote host where you lack root privileges, you’ll often hit this error: Cannot make directory ‘/var/run/screen’: Permission denied This happens because screen needs a socket directory to manage sessions, and /var/run/screen is owned by root. If screen isn’t already installed system-wide, you can’t create this directory without…
If you’re stuck at the Ubuntu login screen with errors like “Could not write bytes: Broken Pipe” or “Check Battery State,” the display manager is likely corrupted or misconfigured. This typically indicates a problem with LightDM, Ubuntu’s default display manager since 12.04. Understanding the Problem LightDM (the lightweight X display manager) manages your login session…
VirtualBox on Fedora reports “The vboxdrv kernel module is not loaded” when you try to launch it, even though the virtualbox and kernel module packages are installed. This typically happens on systems with UEFI Secure Boot enabled, which requires kernel modules to be cryptographically signed. Check if the module is loaded First, verify whether the…
If you’ve forgotten your iPhone passcode, you’ll need to erase the device and set it up again. Apple provides several official methods, but recovery mode is the most straightforward and reliable approach for most users. Before You Start Recovery mode will completely erase your iPhone. Make sure you have a backup if possible, though if…
GNU Screen is a terminal multiplexer that lets you manage multiple shell sessions within a single window. If you’re new to it, here are the best resources to get up to speed, plus practical tips for getting started. Getting Started with Screen For an introduction to the basics, start with A quick tutorial on screen….
Rocky Linux 9 can blank the console screen after a period of inactivity, but by default it may not actually power off the display. This is often caused by kernel mode settings or DPMS (Display Power Management Signaling) configuration. Check Current DPMS Status First, verify whether DPMS is enabled on your console: cat /sys/module/kernel/parameters/consoleblank If…
Xterm doesn’t send Alt key escape sequences by default, which breaks Alt-based keybindings in Vim, Emacs, shell readline, and other applications. Here’s how to fix it across different terminal setups. Xterm Configuration Add this to your ~/.Xresources file: xterm*metaSendsEscape: true Then load the changes and restart xterm: xrdb -merge ~/.Xresources xterm & This tells xterm…
MPlayer is largely unmaintained as of 2026. For playing 3D movies on standard displays, mpv is the modern replacement and offers better stereo rendering support. Using mpv for 3D Playback The most straightforward approach with mpv is to use the stereo3d filter to convert side-by-side or other 3D formats to anaglyph (color-separated) stereo: mpv –vf=stereo3d=sbsl:arced…
If you’re running Google AdSense on your site, you might want to show ads only to desktop visitors and hide them on mobile devices. This reduces clutter on smaller screens and can sometimes improve user experience—though test your bounce rates to confirm it actually helps your metrics. Using CSS Media Queries The cleanest approach is…
When managing a Linux system remotely, you sometimes need to terminate all sessions for a specific user—whether they’re logged in locally at the console, via SSH, through X11 forwarding, VNC, or any other method. Here’s how to do it. Quick Answer To terminate all processes for a user named bob: killall -u bob This kills…