ACPI resume code

[Adam Pribyl]

I am trying to make suspend/resume working on Zotac ZBOX Nano AQ2 with 
10.3: https://forums.freebsd.org/threads/57253/

The acpiconf -s 3 suspends OK but it does not resume.

Setting
sysctl debug.acpi.resume_beep=1

produces a long beep, then it probaly restarts, shortly beeps as during 
normal POST and boots up (no resume). What is this "resume code" that 
should take care of wakeup? ASL? It looks like the system reboots during 
its execution. How can one debug this?

Thanks

Adam Pribyl