Kdenlive Tooltips Missing in Linux Mint

Kdenlive tooltips missing in Linux Mint 19.2. Hovering the mouse pointer or cursor over a control in Kdenlive pops up a tooltip box, but the text is not visible. In the image below it can be seen that in Kdenlive the tooltip appears as a blank or empty box. What is Kdenlive? Kdenlive is free … Continue reading Kdenlive Tooltips Missing in Linux Mint

Use apt or apt-get on Linux?

Should we use apt or apt-get on Linux? Advanced Package Tool apt and apt-get are both command-line tools for handling packages on Debian and Debian based Linux distributions such as Ubuntu and Linux Mint. Linux users who update Linux from the command line on Debian based systems are familiar with “sudo apt-get update” and “sudo … Continue reading Use apt or apt-get on Linux?

Install a Network Activity Indicator in Linux Mint

Install a network activity indicator in Linux Mint. This article shows how to install a network activity indicator, or network monitor, on the task bar of a Linux Mint 19.1 MATE computer. It should work with other versions of Linux Mint MATE and other Linux distributions using the MATE desktop. A network activity indicator or … Continue reading Install a Network Activity Indicator in Linux Mint

GtkToggleButton Glade GTK C Program Tutorial

This GtkToggleButton Glade GTK C program tutorial shows how to use a toggle button and read its state using C code. The user interface is laid out using the Glade user interface designer. GTK+ 3 and the C programming language is used in the project example. Part 18 of GTK 3 Programming with C and … Continue reading GtkToggleButton Glade GTK C Program Tutorial

Linux Mint initramfs Prompt at Boot

Linux Mint initramfs prompt appears after booting computer. A BusyBox Ubuntu built-in shell (ash) screen with initramfs prompt displays after switching on Linux Mint PC as shown in the image below. The computer does not boot up properly and instead of going straight to the login screen, drops through to a initramfs command line prompt. … Continue reading Linux Mint initramfs Prompt at Boot

GtkSpinButton Glade GTK C Program

How to use a GtkSpinButton in a GTK+ 3 application written in C using Glade user interface designer. This tutorial shows how to build a GTK+3 application that allows a user to enter a number in a GtkSpinButton widget. Clicking a button in the application reads the value from the spin button widget and writes … Continue reading GtkSpinButton Glade GTK C Program

How to Install Qt 5 Development Tools in Linux

When starting Qt 5 application development in Linux it is necessary to first install Qt 5 development tools. Qt Creator is the IDE used to develop Qt applications. In order for Qt Creator to be able to build Qt applications, library files, header files and a C++ compiler must be installed. Part 2 of the … Continue reading How to Install Qt 5 Development Tools in Linux

Configure Apache for Local Web Development

How to configure Apache 2 web server on a local Linux computer for local web development. Configure Apache to host multiple local web sites for web development on Linux Mint or Ubuntu. The previous blog post describes how to set up a LAMP stack on a local Linux computer. This post shows how to set … Continue reading Configure Apache for Local Web Development

How to Install a Local LAMP Stack on Linux

How to install a local LAMP stack on a Linux Mint or Ubuntu computer for local PHP and MySQL development or for development on a local WordPress website. Why Install a LAMP Stack? When developing PHP web pages and applications on a local Linux computer it is necessary to install a local web server and … Continue reading How to Install a Local LAMP Stack on Linux

Linux Mint Hash Sum Mismatch During Update

How to fix Linux Mint hash sum mismatch during update of software. The following messages appear after doing an update with sudo apt-get update and also appear in the Linux Mint Update Manager. W: Failed to fetch http://packages.linuxmint.com/dists/rosa/main/binary-i386/Packages Hash Sum mismatch W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/main/binary-amd64/Packages Hash Sum mismatch W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/main/binary-i386/Packages Hash … Continue reading Linux Mint Hash Sum Mismatch During Update