Sleep on a Lenovo Ideapad Slim 3i?

[SanPollo]

Hi all,

I am struggling to get sleep working with my laptop. sysctl tells me "hw.acpi.supported_sleep_state: S4 S5". If I type "acpiconf -s 4", it appears that the laptop is going to sleep very quickly. However, the only way to "wake" it is to press the power button, and doing that causes it to boot from scratch instead of resuming from sleep.

Are there any settings I can try to try to correct this behaviour?

Thanks in advance!

 

[Artempro]

I think your laptop just broke. Change laptop

 

[Crivens]

S4 means suspend to disk. There are certain requirements before that works, you need a special partition for example.

Why S3 is not listed cannot be said from here without more information.

 

[T-Daemon]

It seems S4 requires machine BIOS/UEFI S4BIOS support:

acpi(4)

    hw.acpi.supported_sleep_state
             ...
             S4      Suspend to disk.  All devices are powered off, and the
                     system stops running.  When resuming, the system starts
                     as if from a cold power on.  Not yet supported by FreeBSD
                     unless S4BIOS is available.

Post in thread 'Suspend/Resume to Disk - Hibernation - iFFS/IRST Partition (Intel Fast Flash/Intel Rapid Start Technology)'

Sep 16, 2020

I forgot to note to set hw.acpi.s4bios=1 in sysctl.conf(4) if your system resumes correctly from S3 state (suspend to RAM).
EDIT The sysctl(8) knob hw.acpi.s4bios enables the OS to go directly into S4 state (suspend to disk), and must be supported by the UEFI/BIOS. It does not work for me (does not resume), YMMV.

• Mjölnir

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