Dell U2422HX Users Guide - Page 89
Contact Dell immediately., Vertical Lines
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Brightness Problems Geometric Distortion Horizontal/ Vertical Lines Synchronization Problems Safety Related Issues Intermittent Problems Picture too dim or • Reset the monitor to factory settings. too bright • Adjust brightness & contrast controls via OSD. Screen not • Reset the monitor to factory settings. centered correctly Screen has one or more lines • Reset the monitor to factory settings. • Perform monitor self-test feature check and determine if these lines are also in self-test mode. • Check for bent or broken pins in the video cable connector. • Run the built-in diagnostics. Screen is scrambled or appears torn • Reset the monitor to factory settings. • Perform monitor self-test feature check to determine if the scrambled screen appears in self-test mode. • Check for bent or broken pins in the video cable connector. • Restart the computer in the safe mode. Visible signs of • Do not perform any troubleshooting smoke or sparks steps. • Contact Dell immediately. Monitor • Ensure that the video cable malfunctions on & connecting the monitor to the off computer is connected properly and is secure. • Reset the monitor to factory settings. • Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test mode. Troubleshooting │ 89