Display Anomalies; Symptom - HP ZBook Fury 17 G7 Maintenance And Service Manual

Display anomalies

The display panel is a field-replaceable unit (FRU) and must be replaced by only authorized technicians.
However, HP highly recommends that users and technicians observe symptoms and use the HP PC Hardware
Diagnostics (UEFI) tool before any replacement.

Symptom

This section includes common display issues with symptoms:
Blank or black video
●
Incorrect color, missing color, distorted image
●
● Flickering image
Vertical lines (because of LDVS, decreased signal integrity, and data loss)
●
● Dead pixel (because of display liquid, internal transistor, and others)
Horizontal lines (because of video memory)
●
● Distorted when hot (because of thermal issue)
Cracked screen/image (physical damage)
●
Light leakage/bleeding
●
Contact support for assistance.
Humming noise (due to frequency settings)
●
Contact support for assistance.
Table 7-27 Display anomaly illustrations
Cracked screen
ENWW
Dead pixel
Display anomalies
Cracked image
Vertical lines
Common issues and possible solutions 143
Blurred image
Horizontal lines