Jetson Orin AGX RTC reverts to 1970 on power cycle

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin
1

I am still experiencing a problem when a complete power cycle (not a sudo reboot) occurs on our Jetsons running Jetpack 6 L4T 36.3.

Currently as a temporary solution we have set a chrony NTP server to sync the clock when the computer gets internet access, however there is no guarentee that the computer will always have internet access while on and operating. Therefor we need a more permant fix to this issue.

The issue only arouse after the update from Jetpack 5 → Jetpack 6. Before then the onboard clocks worked fine and did not require constant syncing. However the update after a few days the clocks would constantly revert to 1970 on a power cycle.

Has anyone experieced something similar? Is there any possible fixes to this?

Thanks!

4

Hi,
Please refer to discussion in the topic and give it a try:
Orin AGX DevKit RTC problems

5

Thanks for the reply Dane!

Unfortunately we are already using RTC0, and it looks like that was a fix for Jetpack 5, not Jetpack 6.

This command:

zcat /proc/config.gz | grep CONFIG_RTC_HCTOSYS_DEVICE
returns
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"

6

Hi,
Please share the steps to replicate it on AGX Orin developer kit. We will set up and check.