Debian系统中Compton怎么设置

Installing Compton on Debian
Before configuring Compton, you need to install it on your Debian system. Open a terminal and run the following commands to update your package list and install Compton:

sudo apt update
sudo apt install compton

This installs Compton along with essential dependencies for window composition.

Configuring Compton
The primary configuration file for Compton is located at ~/.config/compton.conf. If this file doesn’t exist, create it using a text editor like nano:

mkdir -p ~/.config
nano ~/.config/compton.conf

Below are key configuration options to customize Compton’s behavior:

• Backend Selection: The backend option determines how Compton renders windows. For better performance, use glx (OpenGL) if your hardware supports it; otherwise, use xrender (software rendering). Example:

  backend = "glx"
  

• Shadows: Enable or disable window shadows with the shadow option. To exclude specific windows (e.g., menus, notifications) from shadows, use shadow-exclude. Example:

  shadow = true
  shadow-exclude = ["class_g = 'GtkWindow'", "class_g = 'GtkDialog'"]
  shadow-radius = 5  # Adjust shadow softness
  shadow-offset-x = 2  # Horizontal shadow offset
  shadow-offset-y = 2  # Vertical shadow offset
  

• Transparency: Control window transparency with opacity. Set opacity to a value between 0 (fully transparent) and 1 (fully opaque). Use alpha to adjust the transparency of inactive windows. Example:

  opacity = 0.8
  alpha = 0.7
  ignore-root = true  # Ignore root window transparency (fixes compatibility issues)
  

• Vertical Sync (VSync): Enable VSync to prevent screen tearing. Set vsync to true (recommended for most users). Example:

  vsync = true
  

• Background Blur: Add a blur effect to the desktop background with blur-background and blur-kern. Example:

  blur-background = true
  blur-kern = "3x3box"  # Blur kernel size (adjust for performance)
  

Save the file after making changes.

Starting and Enabling Compton Autostart
To apply your configuration, start Compton manually using the following command (replace ~/.config/compton.conf with your config file path if different):

compton --config ~/.config/compton.conf

For automatic startup on login, create a systemd service file:

sudo nano /etc/systemd/system/compton.service

Add the following content (replace YourUsername with your actual username):

[Unit]
Description=Compton Window Compositor
After=display-manager.service

[Service]
ExecStart=/usr/bin/compton --config ~/.config/compton.conf
Restart=always
User=YourUsername

[Install]
WantedBy=multi-user.target

Save the file, then enable and start the service:

sudo systemctl daemon-reload
sudo systemctl enable compton
sudo systemctl start compton

Verifying Compton Status
Check if Compton is running using:

systemctl status compton

If the service is active, Compton is working correctly.

Troubleshooting Tips

• If Compton causes lag or high CPU usage, try switching the backend to xrender or disabling effects like shadows/blurs.
• For Wayland users, ensure your desktop environment (e.g., GNOME, KDE) is compatible with Compton’s Wayland backend (backend = "wayland").
• Refer to the official Compton documentation or man page (man compton) for advanced options and debugging.