NoTouchScreen

A Linux utility to enable/disable touchscreen functionality via the system tray.

Features

• Toggle touchscreen functionality with a single click
• System tray integration for easy access
• Auto-detection of touchscreen devices
• Supports multiple touchscreen devices
• Restores touchscreen functionality on exit

Requirements

• Linux system with systemd
• Python 3.x with PyQt6
• D-Bus
• libsystemd
• sdbus-c++

Installation

Build the Driver Daemon

cd driver_daemon
mkdir build && cd build
cmake ..
make
sudo make install

Start the Service

sudo systemctl daemon-reload
sudo systemctl enable driver_daemon
sudo systemctl start driver_daemon

Run the Tray Application

python3 tray.py

To start automatically on login, add tray.py to your desktop environment's startup applications.

Usage

• Left-click on the tray icon to toggle touchscreen functionality on/off
• Right-click to access the menu:
  • Change device: Select a different touchscreen device
  • Quit: Exit the application (touchscreen will be re-enabled)

How It Works

NoTouchScreen consists of two main components:

1. System Tray Application (Python/PyQt6): Provides the user interface and communicates with the driver daemon.

2. Driver Daemon (C++): Runs with elevated privileges to modify the touchscreen driver state via sysfs.

Communication between these components is handled via D-Bus, providing secure privileged operations without requiring the GUI application to run as root.

Building from Source

Prerequisites

# For the daemon
sudo apt install cmake libsystemd-dev libsdbus-c++-dev pkg-config

# For the tray application
pip install PyQt6 dbus-python

Then follow the installation instructions above.

License

This project is licensed under the GNU General Public License v3 or later - see the LICENSE file for details.