HP Pavilion 27-inch Displays User Guide 5 - Page 32
Support and troubleshooting, Solving common problems, Button lockouts, Appendix B
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B Support and troubleshooting Solving common problems The following table lists possible problems, the possible cause of each problem, and the recommended solutions. Problem Possible Cause Solution Screen is blank or video is Power cord is disconnected. flashing. Connect the power cord. Power button is turned off. Press the front panel power button. NOTE: If pressing the power button has no effect, press and hold the power button for 10 seconds to disable the power button lockout feature. Video cable is improperly connected. Connect the video cable properly. See Connecting the cables on page 7 for more information. System is in sleep mode. Press any key on the keyboard or move the mouse to inactivate the screen blanking utility. Video card compatibility. Open the OSD menu and select the Input Control menu. Set Auto-Switch Input to Off and manually select the input. Image appears too dark. Brightness is too low. Open the OSD menu and select Brightness to adjust the brightness scale as needed. Check Video Cable is displayed on screen. Monitor video cable is disconnected. Connect the appropriate video signal cable between the computer and monitor. Be sure that the computer power is off while connecting the video cable. Input Signal Out of Range is displayed on screen. Video resolution and/or refresh rate are set higher than what the monitor supports. Change the settings to a supported setting (see Recognizing preset display resolutions on page 24). The monitor is off but it did not seem to enter into a low-power sleep mode. The monitor's power saving control Open the OSD menu and select Power Control > Auto- is disabled. Sleep Mode and set auto-sleep to On. OSD Lockout is displayed. The monitor's OSD Lockout function is enabled. Press and hold the Menu button on the on the right side of the monitor for 10 seconds to disable the OSD Lockout function. Power Button Lockout is displayed. The monitor's Power Button Lockout function is enabled. Press and hold the power button for 10 seconds to unlock the power button function. Button lockouts Holding down the Power button or Menu button for ten seconds will lock out the functionality of that button. You can restore the functionality by holding the button down again for ten seconds. This functionality is only available when the monitor is powered on, displaying an active signal, and the OSD is not active. 26 Appendix B Support and troubleshooting