Symptom
This section includes common display issues with symptoms:
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Blank or black video
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Incorrect color, missing color, distorted image
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Flickering image
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Vertical lines (because of LDVS, decreased signal integrity, and data loss)
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Dead pixel (because of display liquid, internal transistor, and others)
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Horizontal lines (because of video memory)
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Distorted when hot (because of thermal issue)
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Cracked screen/image (physical damage)
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Light leakage/bleeding
Contact support for assistance.
●
Humming noise (due to frequency settings)
Contact support for assistance.
Table 7-28
Display anomaly illustrations
Display anomalies
Cracked screen
Cracked image
Blurred image
Dead pixel
Vertical lines
Horizontal lines
Quick check
Use these steps to check the display.
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Visually examine the display for cracked screen, liquid crystal leak, dirty spots on glass, and other issues.
●
Reset and update BIOS and docking firmware.
Symptom
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