Why hybrid sleep mode(systemctl hybrid-sleep) has default of shutting down?

Ailike Counts

1/11/23, 2:15 PM

System Info

$ cat /etc/issue
Ubuntu 20.04.3 LTS \n \l

$ uname -r
5.11.0-27-generic

From the official document shown on http://manpages.ubuntu.com/manpages/groovy/man8/pm-action.8.html,

pm-suspend-hybrid Hybrid-suspend is the process where the system does everything it needs to hibernate, but suspends instead of shutting down. This means that your computer can wake up quicker than for normal hibernation if you do not run out of power, and you can resume even if you run out of power. s2both(8) is an hybrid-suspend implementation.

suepend-hybrid or hybrid-sleep are referring to suspend to disk and suspend to RAM without shutting down the computer. However, when I am trying either of the following two commands. My computer shuts down.

$ sudo pm-suspend-hybrid
$ sudo systemctl hybrid-sleep

I have double checked my hibernate mode, which works just fine and my swap configuration is fine. Then I checked file /etc/systemd/sleep.conf and found the following commented lines.

#HibernateMode=platform shutdown
#HibernateState=disk
#HybridSleepMode=suspend platform shutdown
#HybridSleepState=disk
#HibernateDelaySec=180min

I took the commented line as default configuration and found that both hibernate mode and hybrid sleep mode would shutdown my computer. Why hybrid sleep mode would shutdown my computer by default? Why its default implementation differs from the definition from official document?

Thank you for replying in advance.

242

0 + 0

shutdown

suspend

hibernate

power-management

pm-utils

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Why hybrid sleep mode(systemctl hybrid-sleep) has default of shutting down?

TH: เหตุใดโหมดสลีปไฮบริด (systemctl hybrid-sleep) จึงมีค่าเริ่มต้นในการปิดเครื่อง

RO: De ce modul de repaus hibrid (systemctl hybrid-sleep) se închide implicit?

RU: Почему гибридный спящий режим (systemctl hybrid-sleep) отключается по умолчанию?

VI: Tại sao chế độ ngủ kết hợp (systemctl hybrid-sleep) có mặc định tắt?

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