Articles about qt | UserComp.com

QNAP Cache Acceleration Encryption on QTS v5.2.3 with M.2 SSD Drives

Learn how to enable cache acceleration and encryption on a QNAP NAS running QTS v5.2.3 with M.2 SSD drives in a single volume storage pool.

Linux Terminal: Pressing Alt+Super+(key) lists hosts in qterminal and Konsole, not terminals like xterm or gnome-terminal

This article explains how to press Alt+Super+(key) to list hosts in qterminal and Konsole, and provides a solution for those who are unable to execute programs in the terminal.

Ubuntu 20.04 WSL 1: UI Can't Run - Error: /usr/lib/qt5/bin/uic: Error Loading Shared Libraries: libQt5Core.so.5: Not Openshared Object File: No Such File or Directory

This article provides a solution to the problem where UI can't run on Ubuntu 20.04 WSL 1 due to an error loading the shared library libQt5Core.so.5.

Automatically Starting zigbee2mqtt with Cron Job

This article provides a solution for automatically starting zigbee2mqtt using a Cron Job. The systemd service for zigbee2mqtt is broken, so we will use a cron job instead. The command to run is `@reboot /home/rwb/bin/zigbee2mqtt-screen.sh screen`.

Prevent New Windows Opening in QT Tab Bar for Windows Explorer

Learn how to prevent new windows from opening in the QT Tab Bar when using Windows Explorer.

Preventing New Windows from Opening with QTTabBar in Windows Explorer

Learn how to prevent new windows from opening when using QTTabBar in Windows Explorer.

How to Adjust Lubuntu LXQT Desktop Icon Spacing in Taiwan (zh_tw) Locale

Learn how to adjust the wide desktop icon spacing on Lubuntu LXQT desktop in Taiwan (zh_tw) locale. Follow our step-by-step guide to customize your desktop and make it more user-friendly.

Parsing Mosquitto MQTT Broker Log Messages: Understanding 'New Connection' Messages

Learn how to parse Mosquitto MQTT broker log messages, focusing on the 'New Connection' message and its significance.

MSYS2/UCRT64 Update Breaks QTCreator: Unable to Launch

Recently, several packages updated in UCRT64. After the update, QTCreator no longer launches. Simple tasks, like checking the version, produce no output, and the application seems to exit immediately. This article provides guidance for those experiencing this issue.

Qt Creator on Fedora (KDE) Allows Running Fusion Theme Instead of Default Breeze

Having trouble using the Breeze theme in Qt Creator on Fedora (KDE)? You might want to try running the Fusion theme instead. Here's how to launch the program following the appropriate environment.

Direct OS Access Necessary Setting for MQTT Client Devices on IoT Greengrass

If you're a beginner experimenting with MQTT on IoT projects, you might be wondering if direct OS access is necessary for MQTT client devices on AWS IoT Greengrass. This article provides an answer and offers a solution for scanners and peripheral devices on the factory floor.

Qt GUI Applications Hang when Trying to Open or Save Files on Mint Linux 20.3 Office Workstation

Having issues with Qt GUI applications hanging when trying to open or save files on Mint Linux 20.3 Office Workstation? Learn about potential solutions and workarounds in this tech support article. Keywords: Qt, GUI, Applications, File Open, Save, Mint Linux, Office Workstation, Custom Qt Build, QtCreator, TeXStudio, VLC Media Player.

LXQt Shuts Down Instead of Suspending on ASUS X205TA Notebook (Debian Bookworm)

Having trouble with LXQt shutting down instead of suspending when pressing the Fn+Zz button on your ASUS X205TA notebook running Debian Bookworm? This article provides a short and SEO-optimized overview of the issue and invites readers to dive into a full technical support article for a solution.

Windows: Docker Can't Connect to Specific Static Custom IP Address for Mosquitto MQTT Server

Learn how to resolve the issue of Docker in Windows failing to connect to a specific static custom IP address when creating a Mosquitto MQTT server container.

Possible CSS Solution for Target Type Tooltip (qtip) on Tech Support Site

Users have reported an issue with the target type tooltip (qtip) on a tech support site, where an enlarged image appears and becomes annoying. In this article, we will explore a possible CSS solution to remove the image and keep only the tooltip text.

Qt6: Segmentation Fault - Troubleshooting on Tech Support Sites

Discover solutions to common Qt6 segmentation fault issues on popular tech support sites. Learn how to identify and resolve these errors on Linux, Windows, and MacOS.

Setting Cursor Theme in QT Applications: Changing to MacOS-like Cursor (Debian 12 Stable)

Learn how to change the cursor theme in QT applications, such as VLC and VirtualBox, to a MacOS-like cursor on Debian 12 Stable.

MQTT Client Not Communicating: Redirecting MQTT Traffic Due to New Company Policies

A company's new policies prevent direct MQTT client communication with the cloud. Learn how to redirect MQTT traffic via webpage settings.

Cloudflare Blocking Falkon Browser on Fedora 40

Users of Fedora 40 and the Falkon browser (QtWebEngine) report issues with Cloudflare blocking their browser. This issue does not affect Firefox, but users of Moon+Readers and other browsers may experience similar problems. In this article, we will discuss potential solutions for bypassing Cloudflare's browser blocking.

Disabling CORS Checks in QWebEngineView (plex-htpcrenderer) for Linux

This article explains how to disable Cross-Origin Resource Sharing (CORS) checks in the plex-htpcrenderer, a component of Qt's QWebEngineView, on a Linux system.

Resolving Qt5xcb-plugin Installation Error: Could Not Load 'xcb' Platform Plugin

Learn how to resolve the Qt5xcb-plugin installation error 'Could not load 'xcb' platform plugin' by following the steps provided in this article.

Troubleshooting VM Run with QEMU-QtEmu on Windows 10 for Ubuntu 24.04 LTS

Learn how to troubleshoot and run a Ubuntu 24.04 LTS VM using QEMU-QtEmu on Windows 10.

IPv6 Support for MQTT Broker Web Services: A Cost-Effective Option?

Learning about IPv6 support for MQTT broker web services. Discover the cost-effectiveness of using an IPv6 server. Get tech support insights now.

Running mosquitto MQTT broker on Windows 10: Configuring port forwarding

Learn how to configure mosquitto MQTT broker to run on a Windows 10 machine and forward port 1883 for external access.

Running MQTT Broker on Homeserver: Configuring Mosquitto on Windows 10

Learn how to configure and run Mosquitto MQTT broker on a Windows 10 homeserver, forwarding port 1883 to a public IP.

Inheriting Color Schemes in Non-Qt Applications: An Alternative to KDE's kreadconfig5

Learn how to inherit color schemes from Qt applications in non-Qt applications without using KDE's kreadconfig5.

Solving Difficult MQTT Connection Issues in Node-RED on Raspberry Pi

Having trouble connecting to MQTT after updating and deploying Node-RED on your Raspberry Pi? Learn how to diagnose and solve this issue in this concise tech support article.

PyQt5: Adding Virtual Column to Standard Item Model Fails

Learn how to troubleshoot adding a virtual column to a PyQt5 Standard Item Model, which can fail due to various reasons. This article provides a solution for this issue and explains how to make it work.

Efficiently Resizing QTableWidget Columns in Qt (PySide6) Using a Single Row

Learn how to resize QTableWidget columns in Qt (PySide6) based on the width of a particular row, providing a faster alternative to the resizeColumnsToContents() method.

Resolving Warning C5050 in Incompatible Environments with C++20 Modules in Qt Project

Working on a small project that uses C++20 and the Qt 6.5 GUI, you may encounter multiple warnings related to incompatible environments when splitting the project into meaningful modules. This article focuses on resolving warning C5050 in C++20 modules within a Qt project.

Qt Signal-Slot Connection Issue: Runtime Monitor Scale Not Working

Having trouble with the Qt signal-slot connection in your application, specifically with the Runtime Monitor Scale not working? This article provides a possible solution for this issue when encountered in a two-threaded Windows application: Thread #1: Main thread running QML application in C++. Read more to learn about the potential fix.

Convert GTK UI Files to Qt: A Comprehensive Guide

Learn how to convert GTK UI files to Qt format in this comprehensive guide. This tutorial covers the basics of GTK and Qt, and provides step-by-step instructions for converting GTK UI files to Qt. Whether you're a developer looking to switch from GTK to Qt, or just want to expand your skillset, this guide has everything you need to get started. Try it today!

Qt Problem: 'Qstring' has not been declared

Qstring is a class in the Qt framework that allows you to store and manipulate strings. However, it is possible to encounter a problem where the class is not declared. This article will discuss the issue and how to resolve it.

Pyinstaller Error Building Qt Application

Pyinstaller Error Building Qt Application: A Guide to Solving Common Issues

Qt5 development libraries for Debian

Get started with Qt5 development libraries on Debian. Learn how to install and use the libraries in your projects.

Matplotlib Notebook Interactive Plot: Cell Must Be Stopped to Display

Learn how to resolve the issue of an interactive plot in Matplotlib notebook only showing up after stopping the cell. This article provides step-by-step instructions to fix the problem and ensure smooth plot display.

How to Install Qt 5.15 onto CentOS 7

Learn how to install Qt 5.15 on CentOS 7 for enhanced application development. This step-by-step guide will help you set up Qt on your CentOS 7 system and take advantage of its powerful features.

How to Install a Prebuilt QtScrcpy on Linux/Ubuntu

Learn how to install a prebuilt version of QtScrcpy on Linux/Ubuntu. This article provides step-by-step instructions to help you easily set up QtScrcpy on your Linux/Ubuntu system for efficient screen mirroring and remote control.

What is the qt6-tools equivalent of qt5-tool uic option?

Learn about the equivalent of the qt5-tool uic option in qt6-tools for Linux. Find out how to use this option and its functionalities in the latest version of Qt.

Fixing the 'undefined symbol: _ZdlPvm' Error in Linux

Learn how to resolve the 'undefined symbol: _ZdlPvm' error in Linux. This article provides step-by-step instructions for fixing the error in Ubuntu, PyCharm, and Qt5 environments. Find out the possible causes of this error and the recommended solutions to get your system back on track.