Ubuntu 24.04 continues to use Wayland as the default display server, offering smooth animations and macOS-like gestures such as three-finger desktop switching. However, two usability issues arise under Wayland:
- Fcitx-based Chinese input methods (e.g., Sogou, Baidu) fail to function properly.
- When fractional scaling is enabled for high-DPI displays (e.g., 2560×1600), browsers like Microsoft Edge render text blurry.
Fixing Fcitx Input Method Isues
Under Wayland, Sogou Input often flickers or becomes unusable. A common workaround is to switch back to X11 by editing the GDM configuration:
sudo nano /etc/gdm3/custom.conf
Uncomment or add the following line to disable Wayland:
WaylandEnable=false
After rebooting, the input method works, and applications like WPS Office no longer appear blurry. However, this disables Wayland-exclusive features like touchpad gestures and may introduce occasional instability.
Resolving Blurry Browser Rendering with Fractional Scaling
If staying on Wayland, launch Microsoft Edge with explicit Wayland support:
microsoft-edge --ozone-platform=wayland
To make this permanent, modify the application’s .desktop file:
sudo nano /usr/share/applications/microsoft-edge.desktop
Locate the Exec= line and append --ozone-platform=wayland to the command. For example:
Exec=/usr/bin/microsoft-edge-stable --ozone-platform=wayland %U
Save the file and restart the session or reload the desktop environment for changes to take effect. This ensures crisp rendering even with fractional scaling enabled.
While Ubuntu 24.04 delivers a polished visual experience under Wayland, users relying heavily on Chinese input methods or specific Linux-native applications may still face compatibility hurdles.