HP ZBook Studio x360 Maintenance and Service Guide - Page 122

Quick check, Update operating system OS, graphics/video drivers Intel/AMD/NVidia, etc.

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● Blank/black video ● Incorrect/missing color/distorted image ● Flickering image ● Vertical lines (due to LDVS, decreased signal integrity, and data loss) ● Dead pixel (due to display liquid, internal transistor, etc.) ● Horizontal lines (due to video memory) ● Distorted when hot (due to thermal issue) ● Cracked screen/image (physical damage) ● Light leakage/bleeding Contact support for assistance. ● Humming noise (due to frequency settings) Contact support for assistance. Display anomalies Cracked screen Cracked image Blurred image Dead pixel Vertical lines Horizontal lines Quick check ● ● ● ● Visually examine the display for cracked screen, liquid crystal leak, dirty spots on glass, etc. Reset and update BIOS and docking firmware. 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. Configure Windows settings (Power options, Screen brightness, Personalization, Screen resolution, etc.). 110 Chapter 6 Troubleshooting guide

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●
Blank/black video
●
Incorrect/missing color/distorted image
●
Flickering image
●
Vertical lines (due to LDVS, decreased signal integrity, and data loss)
●
Dead pixel (due to display liquid, internal transistor, etc.)
●
Horizontal lines (due to video memory)
●
Distorted when hot (due to thermal issue)
●
Cracked screen/image (physical damage)
●
Light leakage/bleeding
Contact support for assistance.
●
Humming noise (due to frequency settings)
Contact support for assistance.
Display anomalies
Cracked screen
Cracked image
Blurred image
Dead pixel
Vertical lines
Horizontal lines
Quick check
●
Visually examine the display for cracked screen, liquid crystal leak, dirty spots on glass, etc.
●
Reset and update BIOS and docking
firmware.
●
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.
●
Configure
Windows settings (Power options, Screen brightness, Personalization, Screen resolution, etc.).
110
Chapter 6
Troubleshooting guide