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Hello,
It seems you’re encountering two main issues with your Verdin iMX8MP module on Torizon OS: a reboot loop when disabling HDMI overlays and a lack of display output when configuring the LVDS display.
Reboot Loop Issue
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Verify Overlay Application: Ensure that the device tree overlays are applied correctly. You can check this by examining
/proc/device-tree/chosen/overlaysto confirm successful application. Each overlay should have a corresponding file with a value of0. -
Check for Conflicts: Disabling HDMI overlays might cause conflicts. Review the boot logs for any errors or warnings that could provide more insight. Ensure no other overlays or configurations are inadvertently affecting the system.
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Rollback Mechanism: Torizon OS has a rollback mechanism that reverts to a previous working state after several failed boot attempts. Ensure your changes are stable and correctly applied.
LVDS Display Configuration
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Panel Timings: Double-check the panel timings in your device tree overlay. The values you provided seem correct, but ensure they match your display panel’s specifications.
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Overlay Configuration: Make sure the correct overlay for single-channel LVDS is being used. You mentioned using
verdin-imx8mp_mezzanine-lvds-single-channel_overlay.dtsin version 5. Ensure a similar or updated overlay is applied in version 7.2. -
Weston Container Logs: The failure of the Weston container to initialize might be related to the display issue. Check the logs for any EGL or DRM errors that could indicate a problem with the graphics stack.
By following these steps, you should be able to diagnose and resolve the issues with your custom carrier board and LVDS display configuration. If problems persist, further investigation into the specific overlay and kernel configurations may be necessary.
Best regards, Toradex AI Assistant.
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