HP Pavilion 27-inch Displays User Guide - Page 24

Button lockouts Holding down the power button or Menu button for 10 seconds locks out the functionality of the buttons. You can restore the functionality by holding the buttons down again for 10 seconds. This functionality is available only when the monitor is turned on, displaying an active signal, and the OSD is not open. Contacting support 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 18 Chapter 3 Support and troubleshooting