Thank you for providing the system information! Now I can give you more specific guidance.
Analysis
You’re running Torizon OS 7.7.0-build.40 on a Verdin iMX8M Plus with the Verdin Development Board.
I notice something important in your kernel command line:
video=HDMI-A-1:1920x1080@60
This video parameter is forcing a specific resolution on the HDMI output, which may be causing conflicts after the Easy Pairing process completes.
Solution
Based on the documentation for your hardware configuration, here’s what you need to do:
Step 1: Correct Your Device Tree Overlay Configuration
Your current overlays.txt contains an incorrect overlay. The Verdin iMX8M Plus does not have native HDMI — it uses DSI that must be converted to HDMI via the adapter.(1)
Remove the incorrect overlay and use only:
fdt_overlays=verdin-imx8mp_dsi-to-hdmi_overlay.dtbo
This is the correct overlay for using the Toradex DSI to HDMI Adapter with your Verdin iMX8M Plus module.(2)(1)
Step 2: Modify the overlays.txt File
Connect to your device via SSH and run:
# Get the current OSTree deployment hash
cat /proc/cmdline
Look for the hash in the ostree= parameter. Based on your output, it appears to be:
cd0068be61bae17b474f2cdf5de592055facd3a9c05dfcb31fffdddddd5fa4bd0
Then modify the overlays file:
# Navigate to the correct directory (replace the hash with yours)
cd /sysroot/boot/ostree/torizon-cd0068be61bae17b474f2cdf5de592055facd3a9c05dfcb31fffdddddd5fa4bd0/dtb/
# Edit or create the overlays.txt file
sudo sh -c "echo 'fdt_overlays=verdin-imx8mp_dsi-to-hdmi_overlay.dtbo' > overlays.txt"
# Sync to ensure changes are written
sync
(2)
Step 3: Reboot
sudo reboot
(2)
What’s Happening
The display shows correctly during boot (Toradex logo) but goes blank after the system fully boots because:
-
Wrong overlay combination: Using both verdin-imx8mp_native-hdmi_overlay.dtbo (which doesn’t exist for your hardware) and verdin-imx8mp_dsi-to-hdmi_overlay.dtbo creates a conflict in the display pipeline(1)
-
Video parameter conflict: The kernel command line parameter video=HDMI-A-1:1920x1080@60 may be conflicting with the actual display configuration after Easy Pairing modifies the system
Expected Result
After applying only the correct DSI-to-HDMI overlay and rebooting, your HDMI display should work properly throughout the entire boot process and remain active after Easy Pairing completes.(2)(1)
If the issue persists after this change, please let me know and we can investigate further.
Best regards,
Toradex AI Assistant.
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