How to suspend?

[unicorn]

AMD Ryzen CPU, how to suspend the system in the terminal? Which command should I run?

[jmccue]

I know nothing about a "AMD Ryzen CPU", but the command is zzz(8).

[unicorn]

Originally Posted by jmccue

I know nothing about a "AMD Ryzen CPU", but the command is zzz(8).

I think APM is for Intel CPUs, zzz or ZZZ can't be executed in my system.

[Maxnix]

Originally Posted by unicorn

I think APM is for Intel CPUs, zzz or ZZZ can't be executed in my system.

Did you executed it as root (directly or with doas(1))? Suspending, rebooting and shutting down require admin prviledges.

[jggimi]

Hello and welcome!

The use of apm(8)/zzz(8)/ZZZ(8) requires that the apmd(8) daemon be running, and apmd(8) is NOT started by default.

Enable it for automatic start, set any optional flags, and start it immediately with:

1. # rcctl enable apmd
2. # rcctl set apmd flags <the flags you want to set>
3. # rcctl start apmd

There's an example of provisioning apmd(8) in the rcctl(8) man page, which may help.

[unicorn]

thanks. After zzz system is still running. How to wake up from hibernation? What do the flags mean?

[jggimi]

Originally Posted by unicorn

After zzz system is still running.

I interpret that to mean, "suspend isn't working." A dmesg(8) might help. Might.

How to wake up from hibernation?

Hibernation (ZZZ) stores RAM and other states into swap space and then powers down. If hibernation is successful, on power-up the bootloader and kernel will jointly recognize that it had previously been hibernated and will restore RAM and other states from swap, then continue running.

What do the flags mean?

See the apmd(8) man page for its complete list of flags, from -A to -z.

[unicorn]

thanks, my dmesg

[unicorn]

there are no S1, S2, and S3 sleep states in my acpi , why?

[Head_on_a_Stick]

The kernel might require a product-specific ACPI driver for your hardware to provide full functionality. The official ACPI specification is not followed by most manufacturers so quirks and special drivers are sometimes needed.

[jggimi]

Originally Posted by unicorn

there are no S1, S2, and S3 sleep states in my acpi , why?

There might be something you can configure in your BIOS. Looking at other Ryzen 7 users who have posted dmesg(8) output to the misc@ mailing list, I see they have S3 state. A typical Ryzen 7 dmesg(8) includes:

acpi0: sleep states S0 S3 S4 S5