Most very recent laptops no longer support S3 sleep which used to be the default for a long time. On my old laptop it allowed me to just close the lid in the evening and open it again in the morning, and it would only loose a negligible amount of charge during that time.

My new laptop (Dell Inspiron 14 Plus, Alder Lake) uses s2idle by default on Linux (Fedora in my case), which depletes the battery very quickly. I tend to shut down my computer every evening now, but even when I just put my laptop in my bag for 2 hours it will have lost 10-15% when I get it out. It’s not terrible and I have gotten used to using my laptop like that but there’s got to be a better way right?

I know hibernation / suspend-to-disk is an option in theory, but I use secure boot (and also disk encryption), and that makes it a lot more complicated, involving compiling your own patched kernel, so no thanks.

The way sleep on modern laptops is supposed to work is apparently called S0iX but it is not used by default and I don’t know if or how I could make use of it on my laptop, and a guide that is linked everywhere on 01.org now just redirects to some generic intel site.

If you have a recent laptop without S3 sleep support, how are you dealing with this? Do you just live with the poor battery life, or is there some secret to getting more power saving sleep on modern machines?

Edit for mare clarification:

  • The laptop does enter s2idle correctly, it just doesn’t get down to a very low power state at all and consumes ~5% an hour
  • cat /sys/power/mem_sleep only returns [s2idle], no deep sleep is supported. echo deep | sudo tee /sys/power/mem_sleep doesn’t work (tee: /sys/power/mem_sleep: Invalid argument)
  • There’s no option in the BIOS to enable other sleep modes
  • I’ve even tried patching the ACPI table myself to enable S3 sleep and it didn’t work. I have no idea if I did it correctly although according to dmesg it did seem to load my patch

Thank you all for your input but it looks like on this Dell laptop I’m stuck with horrible s2idle sleep :/

  • @[email protected]
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    12 years ago

    12th gen alder lake seems much better at s0 sleep than my 8th gen one. Less battery drain.

    • @[email protected]
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      12 years ago

      My 8th gen XPS used to support S3 and one update they killed it off. It kept finding the damn thing cooking it self in my bag. Had to resort to hibernation.

  • @[email protected]
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    102 years ago

    is there some secret to getting more power saving sleep on modern machines?

    The smartass answer is simply just “turn it off”

    With SSDs, boot times are negligible now and I don’t see any need to sleep/suspend

    • @[email protected]
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      392 years ago

      I think most people use sleep instead of shut off because they don’t want to lose everything they have open, not just to save a few seconds.

      • @[email protected]
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        92 years ago

        Fair enough

        I haven’t had any luck with sleep/hibernation for a while as it usually leads to my WiFi not working when I wake it up and requires a restart to fix it anyways.

        • eshep
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          42 years ago

          @solarvector @Toyful
          WiFi not working after suspend should at worst only require reloading the module, not a full reboot. This is a common thing I’ve noticed with many b43 and some old iwl cards.

  • ProtonBadger
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    22 years ago

    Alas that would be a luxury for me. I got an Asus Strix Scar 17 2022 with NVidia 3060. I game with it, use Wayland, everything is fine.

    Except suspending/hibernating. When it wakes up the Plasma panel is pink, desktop is missing and the mouse is drawing trails. I have the NVidia suspend/hibernate scripts enabled, have a swap partition bigger than RAM, but everything still looks weird on wakeup. So I shut it down in the evening and boot it fully in the morning, no biggie I guess…

    • @[email protected]
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      2 years ago

      Not sure what distro you’re using but try the liquirox kernel. I did that one time on a really stubborn laptop and managed to get both the HDMI and the suspend feature working.

      Using mainline or something to ensure I’m up to date on the latest kernel has never solved a single issue in my entire history of trying but using liquirox worked one time.

  • @[email protected]
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    42 years ago

    Just shut down when you’re done with the laptop. On a modern system you can get to your saved desktop session in < 30 seconds, including decrypting LUKS and logging in.

  • @[email protected]
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    282 years ago

    My new Asus laptop didnt support S3 sleep.

    Turns out it does indeed support it but the BIOS claims it isnt.

    I found a patch for Linux ACPI that would make it enable S3 anyway and lived happily ever after

  • @[email protected]
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    42 years ago

    I had to disable Volume Management Device in bios (a relative of Rapid Storage Tech, I think) to get any amount of battery life on an 13th gen Asus Zenbook. Learned it from https://bugzilla.kernel.org/show_bug.cgi?id=211879.

    Look at “cat /sys/kernel/debug/pmc_core/package_cstate_show” (need root to even peek into the debug dir). If you only have C1 and C2 and everything else is zero, then you’re getting no S0ix joy. When things are working correctly, you should get some of the higher states, and a pile of C10 states when you close the laptop.

  • @[email protected]
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    12 years ago

    With my x1 nano there is an option for s3, but ai didn’t see many problems with s2idle like 5-10% after 8h overnight

    • @[email protected]
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      62 years ago

      That’s actually exactly what I do with my old Macbook Pro - its the only laptop I have, but I think there must be an issue with the battery since if I let it suspend for a bit, when I come back to it I have to hard reset it in order for it to come back on…

      I normally run Fedora 38 on it, but I still keep macOS on it for firmware updates (well, that was the original intent, I don’t think Apple will be updating mine for much longer if they still even are), but it occurs there too.

  • @[email protected]
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    32 years ago

    I have a newish Dell XPS and I got to where I just hibernate all the time (automatic when I close the lid) because otherwise it would easily die in less than a day.

      • @[email protected]
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        22 years ago

        It’s just infuriating when I close the lid, immediately remember that I needed to quickly look at whatever else on screen, and open it back up to a boot screen that takes 15-20 seconds to go away. First world problems maybe but my Android tablet can be locked without overheating in my bag and without losing all of its battery overnight, in addition to opening instantly.

  • 𝒍𝒆𝒎𝒂𝒏𝒏
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    52 years ago

    Manually hibernate and then shut the lid, else it will wake itself up.

    I have an older Mid 2012 MBP that sleeps properly though.

  • Rando
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    192 years ago

    I have this same issue on my 11th Gen Intel Framework and I never found a solution after a lot of research. I’m upgrading from Intel to an AMD board so I hope it will make a difference.

    My Steam Deck (AMD) gets amazing sleep performance and barely loses any charge so I hope I can match that with my new AMD board when I get it

    • @[email protected]
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      2 years ago

      @Rando @Sh1nyM3t4l4ss AMD generally has worse firmware than Intel.

      Your laptop should support S3 sleep though. It might be labeled in the BIOS as “Linux” sleep.

      If you use a modern kernel s0ix (called s2idle in Linux) will work fine as well.

      [edit] I’m sorry I though you had a Thinkpad, wrote the comment on Mastodon app on phone and couldn’t see the message I was replying to haha.

  • @[email protected]
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    2 years ago

    I have a Framework Laptop 13 (i5-1240P) and run Fedora Workstation. It uses s2idle (another name for s0ix, afaik) by default and the battery depletion is OK imo.

    If it’s low on battery and I can’t charge it instantly though, I tend to make the next sleep state use ACPI sleep state S3 by running echo deep | sudo tee /sys/power/mem_sleep. You can check if that’s available on your platform (and the current mode) by running cat /sys/power/mem_sleep afaik.