No Or Bad External Video Via Docking; Incorrect Or Missing Color/Distorted Image - HP ZBook Fury 17 G7 Maintenance And Service Manual

Table 7-30 Issues, possible causes, and fixes (continued)
Items
References

No or bad external video via docking

Use this information to troubleshoot video issues while docking.
Table 7-31 Issues, possible causes, and fixes
Items
Symptoms
No or bad image on external monitor via
ports of docking station (such as VGA,
DP, TB, display port, and others)
Note

Incorrect or missing color/distorted image

Use this information to troubleshoot image issues.
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Procedures
1. Perform hard reset (4. Update BIOS and drivers on page
2. Update BIOS and drivers (4. Update BIOS and drivers on page
do not see video on HDTV.
http://support.hp.com/us-en/document/c01186408
Procedures
Possible causes
Rooted from system board, software or drivers, dock connectors, docking station hardware or
firmware, dock video ports (DP, VGA, and others).
Troubleshooting steps
1. Be sure that external monitor is turned on.
2. Be sure that external monitor is compatible with the computer.
3. If applicable, plug the dock in different Type-C ports.
For more information, see the technical white paper titled "HP Elite Dock with
Thunderbolt 3 & HP ZBook Dock with Thunderbolt 3." Go to
search for HP ZBook Thunderbolt 3 Dock User Guide.
4. If the screen image is distorted, try a DP-to-VGA adapter. Connect the adapter to each
DisplayPort and VGA port of the dock.
5. Test the monitor via internal ports (such as VGA, DP, HDMI, and others).
6. Verify that dock connectors of the notebook and the dock are clean, without dust, debris
(for example, using air duster).
7. Ideally, use a verified working operating system or system connected to the dock to
isolate the issue of the current operating system.
8. Ideally, use a verified working docking station to isolate the faulty dock.
9. Update latest dock firmware. Follow the installation instructions carefully. You may want
to try a DP-to-VGA adapter if you have a distorted screen image. Connect the adapter to
each DisplayPort of the dock. If you still cannot update the dock, attempt to update it on a
confirmed working notebook before having the dock replaced.
See the technical white paper titled "Multiple displays on HP ZBook Mobile Workstations" from
HP platform support website. Go to
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http://www.hp.com/
http://h20195.www2.hp.com/v2/getpdf.aspx/
Common issues and possible solutions 147
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