Dell U2722D - Locking OSD Menu and Power Buttons

Operating the Monitor | 77
Use the Joystick to Lock the Button(s).
Press the left directional navigation of Joystick for four seconds, a menu appears on
the screen.
Select Option:
Select one of the following options:
Options Description
1
Menu Button Lock
Select this option to lock OSD menu function.
2
Power Button Lock
Use this option to lock power button. This will
prevent the user to turn off the monitor using the
power button.
3
Menu and Power Button
Lock
Use this option to lock OSD menu and power
button to turn off the monitor.
4
Built-in Diagnostics
Use this option to run the built-in diagnostics, see
Built-in Diagnostics.