Dell UltraSharp U2424H User Manual page 82

Lock
Reset Menu
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82 Operating the monitor
With the control buttons on the monitor locked, you
can prevent people from accessing the controls. It
also prevents accidental activation in multiple
monitors side-by-side setup.
• Menu Buttons: All joystick functions are locked
and not accessible by the user.
• Power Button: Only the Power Button is locked
and not accessible by the user.
• Menu + Power Buttons: Both the joystick and
the Power Button are locked and not accessible
by the user.
The default setting is Disable.
Alternative Lock Method [for Menu/function
buttons]: You can also press and hold the joystick to
the up or down or left or right for 4 seconds to set
the lock options.
NOTE: To unlock the button(s), press and hold the
joystick to the up or down or left or right for 4
seconds.
Press the joystick to reset all settings under the
Menu menu to the factory preset values.