Dell S2422HZ User Manual page 41

Using the front-panel control button to lock one or more buttons
1. Press and hold Button 4 for four seconds, a menu appears on the screen.
2. Select one of the following options:
Options
1
Menu button lock
2
Power button lock
3
Menu and Power button
lock
4
Built-in diagnostics
1 2 3 4
Description
Select this option to lock OSD menu function.
Use this option to lock the power button. It
prevents you to turn off the monitor using the
power button.
Use this option to lock OSD menu and power
button to turn off the monitor.
Use this option to run the built-in diagnostics. See
Built-in diagnostics.
5
Operating the monitor | 41