X Servers and International Keyboard Layouts

Simulink® requires the XKEYBOARD extension to detect the keyboard layout that is currently active. Some older X servers do not support this extension. If this extension is absent or disabled, then Simulink assumes a default layout. When the default layout does not match the keyboard layout, some keys might not produce the expected characters.

Suppose you are using a Linux® based computer with a German keyboard. Without the XKEYBOARD extension, Simulink uses the default layout, which is English, and can therefore produce incorrect characters. MATLAB® correctly recognizes the keyboard as German.

If you encounter this issue, try enabling the XKEYBOARD extension, or use an X server that supports this extension.