Software Environment:Jetpack 36.3
Hardware:Custom carrier board,Jetson AGX Orin 32G/64GB core module
During the startup process, the display shows normally. After the startup is completed and the password is entered to log in, the display shows a snowy screen. After reinserting the cables, the display shows normally again.
The relevant log is as follows:
雪花屏日志.zip (2.3 MB)
Can this issue be reproduced on AGX Orin devkit with the same SW?
Linux_for_Tegra/source/hardware/nvidia/t23x/nv-public/overlay/tegra234-dcb-p3767-0000-hdmi.dts
This is a probability issue. We have not encountered this problem on the AGX Orin devkit because the Orin AGX uses a DisplayPort interface, whereas our custom board uses an HDMI interface here. We used the dcb-image from the file
Linux_Tegra/source/hardware/nvidia/t23x/nv-public/overlay/tegra234-dcb-p3767-0000-hdmi.dts
and added hotplug.
display@13800000 {
/* os_gpio_hotplug_a is used for hotplug */
os_gpio_hotplug_a = <&gpio TEGRA234_MAIN_GPIO(M, 0) GPIO_ACTIVE_HIGH>;
status = “okay”;
};
Could this modification be related to the issue?
We performed 1000 resolution switching operations using the AGX devkit , and there were no restarts or snowflake screen occurrences.
If you want to reproduce a HDMI issue, please use Orin NX + Xaiver NX devkit carrier board.
This is the only way you could reproduce HDMI issue on a NV devkit case.
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