A Troubleshooting
Solving Common Problems
The following table lists possible problems, the possible cause of each problem, and the recommended solutions.
Problem | Possible Cause | Solution |
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Screen is blank. | Power cord is disconnected. | Connect the power cord. |
Power button on front panel of the monitor 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 | Connect the video cable properly. Refer to Chapter |
| connected. | 3, Setting Up the Monitor on page 5 for more |
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| information. |
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| Screen blanking is active. | Press any key on the keyboard or move the mouse |
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| to inactivate the screen blanking utility. |
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Screen image appears distorted; text is | The computer’s graphics card | Set the computer’s display resolution to the same |
fuzzy or blurred; image quality is | resolution is set lower or higher | mode as the monitor’s recommended native screen |
degraded. | than the monitor’s native | resolution to provide the best picture quality. |
| resolution. |
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Image appears blurred, indistinct, or | Brightness and contrast are | Press the |
too dark. | too low. | does not correct the image, press the Menu button |
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| to open the OSD Menu, and adjust the brightness |
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| and contrast scales as needed. |
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Image is not centered | Position may need adjustment. | Press the Menu button to access the OSD menu. |
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| Select Image Control/Horizontal Position or Vertical |
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| Position to adjust the horizontal or vertical position |
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| of the image. |
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Check Video Cable is displayed on | Monitor video cable is | Connect the VGA cable to the VGA connector on the |
screen. | disconnected. | computer. Be sure that the computer power is off |
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| while connecting the video cable. |
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Input Signal Out of Range. Change | Video resolution and/or refresh | Restart the computer and enter Safe Mode. Change |
Settings to 1280 x 1024 @ 60Hz is | rate are set higher than what | the settings to a supported setting (see Recognizing |
displayed on screen. | the monitor supports. | Preset Display Resolutions on page 29). Restart |
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| the computer so that the new settings take effect. |
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HP Display LiteSaver doesn't turn off | The Activity Extension time | The default Activity Extension value is set to 10 |
the monitor screen. | has not elapsed. | minutes. The HP Display LiteSaver will wait to detect |
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| no input or movement from the keyboard or mouse |
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| for 10 consecutive minutes after the Display Off time |
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| has passed, before the monitor enters into low- |
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24 Appendix A Troubleshooting