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Blank/black video
Incorrect/missing color/distorted image
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Flickering image
Vertical lines (due to LDVS, decreased signal integrity, and data loss)
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Dead pixel (due to display liquid, internal transistor, etc.)
Horizontal lines (due to video memory)
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Distorted when hot (due to thermal issue)
Cracked screen/image (physical damage)
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Light leakage/bleeding
Contact support for assistance.
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Humming noise (due to frequency settings)
Contact support for assistance.
Cracked screen
Quick check
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Visually examine the display for cracked screen, liquid crystal leak, dirty spots on glass, etc.
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Reset and update BIOS and docking firmware.
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Update operating system (OS), graphics/video drivers (Intel/AMD/NVidia, etc).
For custom images, HP highly recommends upgrading or installing Windows in UEFI mode (or Legacy
disabled) to fully support hybrid graphics and avoid unexpected behaviors (i.e., blue screen error,
graphics/video issues) in the BIOS Legacy setting.
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Configure Windows settings (Power options, Screen brightness, Personalization, Screen resolution, etc.).
Dead pixel
Display anomalies
Cracked image
Vertical lines
Common issues and possible solutions 113
Blurred image
Horizontal lines