Dell G15 Ryzen Edition Display's on External Only

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  • justice171
    Senior Member
    • Feb 2018
    • 101
    • South Africa
    #1

    Dell G15 Ryzen Edition Display's on External Only

    Good day, BadCaps Technician Team,

    I hope this finds you well.

    I am reaching out for assistance with a Dell G15 Ryzen Edition laptop that I am currently troubleshooting.

    The laptop successfully posts on an external screen, but the main screen remains unresponsive. Below are the steps I have taken so far:
    1. Ordered and replaced the LCD panel and LCD cable.
    2. Verified that the 19V power rail for the backlight is present.

    Despite these efforts, the main screen still does not post. I am unsure of the next steps to identify and resolve the issue.

    To aid in the diagnosis, I have attached the schematic and board viewer files for reference.

    Could you please advise on additional areas or components to check?

    I am particularly curious if the issue might relate to:
    • The LCD connector on the motherboard, such as damaged pins or loose solder joints.
    • A potential fault in the eDP circuit (embedded DisplayPort).
    • Possible firmware or GPU-related issues.

    I appreciate your expertise and guidance on this matter. If any additional details or measurements are required, please let me know.

    Looking forward to your response.
    ​
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