this post was submitted on 11 Oct 2023
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How to disable S0ix and enable S3 Sleep on Ubuntu 22.04 on Dell Latitude 3410 (lemmy.my.id)
submitted 1 year ago by garam@lemmy.my.id to c/linux@lemmy.ml
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Hello. I just want to ask, I already tried search many resources, but I still can't find a way to reduce battery drain while sleep on Ubuntu on Dell laptop.

I seen that it use S0ix, the new standard that many manufacturer use but when sleep it drains a lot battery, in just 6 hours the battery gone 0.

Any help is appreciated. This is company laptop and it requires me use ubuntu (I don't like it but I don't have options to changes OS/distro).

Thanks

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[–] d3Xt3r 3 points 1 year ago* (last edited 1 year ago) (2 children)

Why not just set your laptop to automatically hibernate after it's been in a suspended state for x seconds? That way your system will fully power off after it's been suspended for a while, which would save even more battery compared to S3. With the speed of NVMe drives, resuming from hibernation only takes a couple of seconds on most modern systems.

[–] ReversalHatchery@beehaw.org 1 points 1 year ago (2 children)

How do you set that up? Please don't say it's a BIOS setting.

[–] d3Xt3r 5 points 1 year ago* (last edited 1 year ago)

Nah, it's a systemd setting. You need to edit /etc/systemd/logind.conf and change HandleLidSwitch= to HandleLidSwitch=suspend-then-hibernate, and the create or edit /etc/systemd/sleep.conf to change the timeout value:

[Sleep]
HibernateDelaySec=900

With the above, the system will automatically hibernate after 15 minutes of sleep.

Note that if you're using a full-fledged DE or a third-party power profile manager, you may need to disable any lid-close actions in there (if it doesn't have the suspend-then-hibernate option) so that systemd can handle it properly.

[–] garam@lemmy.my.id 1 points 1 year ago (1 children)

I'm not familiar with gnome, is there any option on gnome for it? I never seen it.