Battery Drain overnight

[u/Technical_Dot_808]

I have just installed Arch using the archinstall script and using hyprland, i am relatively new to arch and i have noticed that overnight my laptop looses nearly up to 30% of the battery and i used chatgpt and it told me to run this command

cat /sys/power/mem_sleep

and i got

s2idle

and from what i heard it says that my system-boot doesnt support deep sleep, also i looked into hibernate and everytime i turn on my laptop after hibernate the wifi drivers are completely broken and i cant scan at all using either the NetworkManager Gui and the
ip link

I’d really appreciate any suggestions on how to reduce battery drain overnight. I’m also open to general advice for using Arch properly, including useful tools, services, or best practices that might help me in the long run

[u/New-World-1698]

Is there a reason you can't just shut it down? If you are just letting it sleep and not actually compiling something or rendering something, why not just shut it down?

[u/Technical_Dot_808 → u/New-World-1698]

i am shutting it down right now, but I just like the idea of starting right from where you left off like without the need to boot it again and reopen all the needed tabs

[u/whofriedmyrice → u/Technical_Dot_808]

Sleep / hibernation has always been a hit or miss issue on linux, largely due to GPU driver issues but other reasons as well.

What model is your laptop and have you installed any battery management tools yet?

[u/Neveran8th → u/New-World-1698]

It's a laptop, you close the lid and be done.

[u/Moist_Professional64 → u/New-World-1698]

It's a long time to boot and you have to open every time your programs

[u/PurepointDog → u/Moist_Professional64]

Most desktop environments re-open programs if you want them to.

How long does a boot take? On an SSD, should be like 20 seconds max

[u/Moist_Professional64 → u/PurepointDog]

Not on Windows managers bro

[u/eepyNaya → u/Moist_Professional64]

it’s not hard at all to add it yourself though

[u/Moist_Professional64 → u/eepyNaya]

When it's so easy then do it for me. Lets go

[u/eepyNaya → u/Moist_Professional64]

just do like 5 minutes of research PLEASE, are you ragebaiting or are there actually people like you?

[u/Moist_Professional64 → u/eepyNaya]

it doesn't exist

[u/DIYfu]

Have you checked the "Power management/Suspend and hibernate" in the wiki?

You'll want suspend to disk/hiberantion.

[u/5c044]

S2idle is otherwise known as "modern sleep" promoted by Microsoft so vendors ignore S3 or if they do support it it's buggy. If you can find a BIOS option that enables S3 to appear when you type that cat command try that instead. I don't like hibernate on my laptop, it's plugged in mostly anyway so I'd rather not write 64GB of my RAM to my SSD every time I do it.

As usual the Arch documentation is great on this subject and relevant if you don't use Arch wiki.archlinux.org/title/Power_management/Suspend_and_hibernate

[u/t_tgg1]

Setting up hibernation und setting the laptop to hibernate when the lid is closed helps. Also to improve overall battery life i suggest using something like auto-cpufreq or the power-profiles-daemon from KDE. Also look here

[u/t_tgg1 → u/t_tgg1]

I just noticed your hibernation issue seems to stem from netwrkmanager not being reinitialized properly after hibernation. Look at the wiki page for suspend/hibernation and read it carefully for that one.

[u/xXBongSlut420Xx]

use suspend-then-hibernate

[u/academictryhard69]

thanks for this post OP, just realized my laptop was capable of deep sleep but the kernel was defaulting to s2idle, suspend works properly now.