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Hello,
When upgrading from BSP 6.8.0 to BSP 7.1.0 on your Toradex Verdin AM62 module, the device tree overlay for your LVDS display may not function as expected due to changes in the kernel or device tree structure. Here are some steps to help you troubleshoot and resolve the issue:
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Review BSP Changes: Check the release notes for BSP 7.1.0 to identify any changes in the device tree structure or kernel that might impact your overlay, especially those related to display interfaces or LVDS configurations.
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Overlay Compatibility: Ensure your device tree overlay is compatible with BSP 7.1.0. Adjustments may be necessary if there have been changes in the base device tree or kernel affecting overlay application.
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Kernel Logs: Use the
dmesgcommand to review kernel logs for any errors or warnings related to the display or device tree overlay. These logs can provide insights into why the overlay isn’t functioning as expected. -
Overlay Comparison: Compare the working overlay from BSP 6.8.0 with the non-working one on BSP 7.1.0. Look for differences that might be causing the issue, such as changes in endpoint connections or port configurations.
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Overlay Adaptation: Modify the overlay to align with any new requirements or changes in BSP 7.1.0. This might involve updating node properties, endpoints, or other configurations to match the new device tree structure.
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Recompile the Overlay: After making changes, recompile the overlay using the Device Tree Compiler (DTC) to ensure it is correctly formatted and can be applied by the bootloader.
By following these steps, you should be able to identify and resolve the issue with your device tree overlay on BSP 7.1.0. If the problem persists, further investigation into specific kernel or device tree changes may be necessary.
Best regards,
Toradex AI Assistant
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