HP RP9 Distorted Image Diagnostic Report - Solar Faults | terminalfaults.org

Technical Background:

Image distortion can stem from several hardware and software factors. The integrated graphics processing unit (iGPU) may be faulty, the video cable connection may be degraded, the display panel itself could be failing, or the display driver software could be corrupted. Signal attenuation along the video cable can also introduce artifacts. ESD events, especially in dry environments, can temporarily disrupt the video signal.

Symptoms:

The HP RP9 unit exhibits visual artifacts described as distorted images on the display. This may manifest as pixelation, colour aberrations, tearing, or geometric distortions.

Possible Causes:

Loose or damaged video cable (VGA/HDMI/DisplayPort).
Faulty integrated graphics processing unit (iGPU).
Corrupted or outdated display driver software.
Display panel failure.
Electromagnetic interference (EMI) affecting the video signal.
Insufficient power supply to the iGPU.

Solution:

1

Safe Handling: Power down the HP RP9 unit and unplug it from the power source.
2

Inspect the video cable connection at both the RP9 unit and the display. Ensure it is securely connected. If possible, test with a known-good video cable.
3

Check the display panel connection. Gently ensure the connection is correctly fit into the back of the display and the RP9 terminal.
4

Check external interference. Move the machine away from large EMI sources.
5

Restart the HP RP9 unit and observe if the issue persists.
6

If the distortion persists, attempt to update the display driver software through the operating system's device manager.
7

Power cycle the display by disconnecting its power cable for 30 seconds, then reconnecting it.

Safety Warning:

Electrostatic discharge (ESD) can damage sensitive electronic components. Ground yourself before touching any connectors or components, especially in dry environments. Ensure the power cable is disconnected before inspecting or adjusting any connections. Do not use excessive force when connecting or disconnecting cables. Do not introduce liquids or moisture into the device. This is a secure payment terminal, do not attempt to open the chassis under any circumstances.

Prevention:

Regularly inspect and clean the video cable connections. Ensure adequate ventilation around the HP RP9 unit to prevent overheating. Implement cable strain relief measures to prevent damage to the video cable. Periodically update the display driver software. Clean the touch screen with an approved cleaner to avoid residue build-up.

Expert Tip:

Try booting into safe mode. If the distortion disappears in safe mode, this strongly suggests a driver issue. If using multiple monitors, test each individually to isolate the faulty device.

Frequently Asked Questions

•Is the display driver up to date?

Confirm that the display driver is the latest version available from the manufacturer's website.

•Does the distortion appear immediately upon boot, or only after the operating system loads?

If it appears immediately, it is likely a hardware issue. If it appears only after the OS loads, it's likely a software/driver issue.

•Has there been any recent hardware or software changes?

Recent changes could be the root cause of the image distortion.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•Is the display driver up to date?

•Does the distortion appear immediately upon boot, or only after the operating system loads?

•Has there been any recent hardware or software changes?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: