When enabling rt build in Jetpack6.2, white noise appears on the screen during restart

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
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1

I have the same problems on a AGX Orin developer’s kit and my custom board.
Without real-time RT compilation (“generic_rt_build.sh disable”), everything works fine.
If I enable real-time RT compilation (“generic_rt_build.sh enable”). The system will have white noise on the screen when restarting.
System information and reproduction steps are as follows:
JetPack 6.2 (5.15.148-rt-tegra)

  1. Connect the monitor to the AGX Orin Devkit and power it on.
  2. Wait until you enter the desktop and then execute sudo reboot
  3. White noise appears on the screen

Please refer to the following video:

WhiteNoise
WhiteNoise1892×1144 226 KB

2

Hi,
If the device cannot be flashed/booted, please refer to the page to get uart log from the device:
Jetson/General debug - eLinux.org
And get logs of host PC and Jetson device for reference. If you are using custom board, you can compare uart log of developer kit and custom board to get more information.
Also please check FAQs:
Jetson AGX Orin FAQ
If possible, we would suggest follow quick start in developer guide to re-flash the system:
Quick Start — NVIDIA Jetson Linux Developer Guide 1 documentation
And see if the issue still persists on a clean-flashed system.
Thanks!

5

Hi,
Please refer to the steps and see if you miss any step:
Orin Nano Dev Kit: RT Kernel OTA on r36.4 w/ Jetpack 6.1and NVME SSD - #3 by DaneLLL
Orin Nano Dev Kit: RT Kernel OTA on r36.4 w/ Jetpack 6.1and NVME SSD - #5 by DaneLLL

6

Hi,
I appreciate the speedy response.
I enabled CONFIG_HZ_1000 in generic_rt_build.sh and flash the recompiled preemt_rt kernel to the AGX Orin Devkit using the flash command (sudo ./flash jetson-agx-orin-devkit internal).

The device can boot normally and perform any operation, But when I restart the device, I still see white noise appear on screen after seeing the shutdown NVIDIA logo. (the result is the same as the previous video clip I provided.)
It can fully reproduce this problem using the AGX Orin development kit and Jetpack 6.2 with RT enabled.
Following are two uart logs (boot log and log after reboot instruction) for your reference.
01_boot_Log_AGX-Orin-Devkit_jp6.2_RT-enable.log (75.6 KB)
02_reboot_Log_AGX-Orin-Devkit_jp6.2_RT-enable.log (79.7 KB)
Thank you again.

7

Hi,
Does sudo reboot fail? Seems like it can reboot successfuly.

8

Hi,
Device can reboot successfully, but it will see white noise appear on screen after seeing the shutdown NVIDIA logo.
Although this will not affect the device restart, it did not happen before Jetpack 6.0.
How to fix this in Jetpack 6.2?
Thank you.

10

Hi,
Is there any progress on this issue on JetPack 6.2?

Thank you.