HP Pavilion 27-inch Displays User Guide 1 - Page 21

Button lockouts Holding down the Power button or Menu button for ten seconds will lock out the functionality of the buttons. You can restore the functionality by holding the buttons down again for ten seconds. This functionality is only available when the display is powered on, displaying an active signal, and the OSD is not open. Contacting support For additional information on using your monitor, go to http://www.hp.com/support. Select Find your product, and then follow the on-screen instructions. To resolve a hardware or software problem, go to http://www.hp.com/support. Use this site to get more information about your product, including links to discussion forums and instructions on troubleshooting. You can also find information on how to contact HP and open a support case. NOTE: The monitor user guide, reference material, and drivers are available at http://www.hp.com/support. Preparing to call technical support If you cannot solve a problem using the troubleshooting tips in this section, you may need to call technical support. Have the following information available when you call: ● Monitor model number ● Monitor serial number ● Purchase date on invoice ● Conditions under which the problem occurred ● Error messages received ● Hardware configuration ● Name and version of the hardware and software you are using Button lockouts 15