Ubuntu App Missing Window Decorations

Bug Report: Missing Window Decorations in Cursor on Ubuntu 24.04

Description:
When launching Cursor on Ubuntu 24.04, the application window lacks standard window decorations (title bar, minimize, maximize, close buttons). This prevents moving or resizing the window using typical methods.

Reproduction Steps:

  1. Download and make executable the Cursor AppImage:
    chmod +x ~/Applications/cursor/Cursor.AppImage
  2. Launch Cursor:
    ~/Applications/cursor/Cursor.AppImage --no-sandbox
  3. Observe that the window opens without decorations and cannot be moved or resized using standard window manager controls.

System Information:

  • Operating System: Ubuntu 24.04.2 LTS
  • Display Server: X11 (echo $XDG_SESSION_TYPE returns ‘x11’)
  • Cursor Version: 0.50.5 (as indicated in the process details)
  • Installation Method: AppImage

Additional Details:

  • Attempted to launch with various flags to restore window decorations:
    –disable-features=ElectronDisableNativeWindowFrame
    –ozone-platform=x11
    –disable-features=WaylandWindowDecorations
  • These attempts either had no effect or resulted in errors related to sandboxing and namespace permissions.
  • Other Electron-based applications, such as Joplin, display window decorations correctly, suggesting the issue is specific to Cursor.

Impact:
This issue significantly hampers usability, as the inability to move or resize the window restricts effective use of the application.

I deleted ~/.config/Cursor as mentioned in related topics and that seemed to fix the issue.