Nx platform:system bringup issue!

hello,when i download standard sdk image from jetson download centor to our self-designed pcba,the system startup abnormally,and the pcba device automatically reboot continuously,i don’t know what happened and what problem with the pcba!
the hdmi have some output on the screen,but a few second later,the screen go dark.
the uart debug log is in the attachement.
system-bringup.log (113.8 KB)

rootfs version is R32.4.4

Hi,

Sorry for late reply. I am confused by your image here.

standard sdk image from jetson download centor

What standard sdk image do you use here? Could you point out the link for me?

We solved the problem,so please close this post!thank you!

Could you give a brief comment to tell us what was the cause of your problem?

This may also help other users who have similar problem.

when we burned system image to our nx pcba board,the system did not enter ubuntu desktop,not only enter uart commandline,duo to our HDMI ddc and hpd problem,there are two solution:
1.hardware solution: disconnect ddc and hpd,then the system enter uart commandline.In uart commandline mode,we set username and passwd,and then we reconnect ddc and hpd,the system can enter ubuntu desktop.
2.software solution: set default username and passwd,with autologin = true,and then system can enter ubuntu desktop.
that’s all ,thank you !

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Hey, do you still have this issue or not anymore ?
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no,we fix it!
as follow:
1.hardware solution: disconnect ddc and hpd,then the system enter uart commandline.In uart commandline mode,we set username and passwd,and then we reconnect ddc and hpd,the system can enter ubuntu desktop.
2.software solution: set default username and passwd,with autologin = true,and then system can enter ubuntu desktop.

thank you for your answer.