X735 Power Button Script and Booting from USB

SC

Sterling Crapser
7/1/20, 8:01 AM

I have a question regarding setup of X735 power button script when combined with booting from USB. I may already know the answer but want to ask first.

I tried setting up computer to boot from USB (I have X872 shield component with NVMe SSD). I used the steps on Tom's Hardware and this works fine. But when I set up power button script for momentary switch in the case (I have X857-C1) it does not work completely. Turning on and powering off works. Rebooting using button or software fails. I see a message on startup that the SD card cannot be found and the system enters a 20 second cycle to try booting again which also fails. Only way to start computer is to completely power off and power on.

I am wonder if I should set up power button on SD card first; then perform steps to boot from USB. The script for power button was written before code that enables booting from USB.

Please give me feedback. I will try what I described in the meantime and update results.

Thanks

0 likes 0 likes

4
Posts

316
Views
HH

Harry Huang Staff member
7/1/20, 6:30 PM

@Sterling Crapser

Hi, try to see here: 500ms may be too short for usb port-power reset

Or check your hardware connection?

Thanks

0 likes 0 likes
SC

Sterling Crapser
7/2/20, 2:59 AM

@Harry Huang

Hello Harry,

Thank you for the information. It was exactly what I needed. I made the changes and the reboot now works fine (started by button or software).

I do have one further question:

When I power off using the operating system's "Shutdown" option, the power to the case remains on. I must shut down the power separately. I'm assuming this is because the Raspian OS is not interacting with the X735 and would need a custom script or something. Is this correct?

It's not a big deal...I'm curious.

Thanks so much for your help!

0 likes 0 likes
HH

Harry Huang Staff member
7/5/20, 2:47 PM

@Sterling Crapser

Your understand is right.

Only press the button of X735 to supports safe shutdown.

Regards.

0 likes 0 likes

Please login to reply this topic!

SHOPPING CART

title

X735 Power Button Script and Booting from USB