If you see the Power Button Lockout message on your HP Monitor, press and hold the power button for about 10 seconds to restore its functionality.

Press the "Menu" button on the screen and then use the other buttons to browse for a "Factory Settings" mode. Select this mode to reset the monitor to its original settings.

How to Reset an LG LCD Monitor. If you spend long hours working on your computer, adjusting your LG monitor's settings can increase your viewing comfort and prevent eyestrain. The LG monitor ...

Here’s one that will let us fix our borked ASUS computer monitor buttons. [Silviu] has the same monitor we do, an ASUS VW202, and had the same problem of stuck buttons.

On the front of the screen, in the bottom right corner, is a button dedicated to refreshing the display to remove any ghosting effects. A menu button to bring up the settings is on the left side.

You should see a menu or a list of input sources appear on your screen. Keep pressing the button until you reach the input source that corresponds to your computer.