Some dual-function keys share keys with letter keys and numeric keys. Such keys do not have a dedicated printed icon. The following table lists the hidden functions of these keys.
| Key combination | Hidden function |
|---|---|
| Fn + M | Enables/disables the touchpad |
| Fn + N | Shows device information. |
| Fn + Q | Switches among different operation modes. |
| Fn + R* | Changes the display refresh rate. |
* for selected models