[systemd-bugs] [Bug 57793] Please add the ability to go into standby mode to systemd-sleep.

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Jan 14 16:06:42 PST 2013


https://bugs.freedesktop.org/show_bug.cgi?id=57793

--- Comment #5 from Mantas M. <grawity at gmail.com> ---
(In reply to comment #3)
> Uh, I am not sure what you are looking for, but STR and STD are the only
> things the kernel knows about. There is no such thing as "suspend" that was
> different from STR.

kernel/power/main.c:280 recognizes 'standby' as a separate state.

'mem' is "Suspend-to-RAM" (ACPI S3) and 'standby' is "Power-On Suspend" (ACPI
S1 if I remember correctly), a lighter state that keeps some hardware powered
on. Which states are supported seems to depend on the hardware.

I don't think a new systemctl command would be necessary – just add a config
option to select whether "systemctl suspend" means 'mem' or 'standby', to cover
all systems with broken 'mem'.

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