I bought Dell Precision 3581 and installed Linux on it. I wanted to have deep sleep mode enabled, which, in my opinion, is a great convenience when using laptop. With my last Thinkpad I restarted system once a month using sleep mode all the time.

The problem with Dell is massive battery drainage when using sleep
mode. There are chances that my laptop survives night in a sleep mode when it is almost fully charged, but it will run out of the battery otherwise!!!

I'm aware of some threads like:
- https://www.reddit.com/r/Dell/comments/hla8yk/how_to_enable_s3_deep_sleep_on_xps_17_9700_in/
- https://www.dell.com/community/en/conversations/xps/xps-13-9310-ubuntu-deep-sleep-missing/647f8daff4ccf8a8dee4f308?page=5
- https://www.dell.com/community/en/conversations/xps/dell-s3-sleep-mode-again/647f865bf4ccf8a8de560264
- https://askubuntu.com/questions/1398674/battery-drain-during-suspend-mode-when-lid-is-closed-20-in-8-hours
- https://www.dell.com/community/en/conversations/xps/suspend-and-hibernate-issues-on-xps-15-9500-on-linux/647f8a3ef4ccf8a8dea103d5
- https://learn.microsoft.com/en-us/windows-hardware/drivers/kernel/system-sleeping-states
- https://onlinehelp.ncr.com/Retail/Workstations/7613/HTML/Topics/UserGuide/5.%20Power%20Management/3-ACPI%20Sleep%20States%20(S0%20-%20S5).htm

I tried some BIOS 'hacks' like the ones mentioned in the first of the above links to have S3 Deep Sleep Mode enabled, however with no success.

1) Is it possible to configure my model to force it to Deep Sleep (I found somewhere that it's not possible at all for some Dell models).

2) If so, then: How can I achieve that?

Pinned Posts

FAQ Precision Mobile Laptops

Precision Mobile Workstations

Precision 7780 TPM PCR7 woes

m3800 Laptop - No POST & 2 Beeps (Not RAM!)

Dell 7550 battery cable replacment

Dell Precision 3520 Issues Running 3 Monitors

Precision M4600

Overheat

Precision 5540 screen severely glitched

Dell Precision 5510 completely dead, nothing happens when pressing the power button

Dell 7550 Gpu Upgrade

Wallpapers

DELL M6500 does not install windows.

Product key Problem

Precision 3581 stuck at 2.16GHz.

Dell XPS 13 9370 freezing issue on Windows 11

Dell Precision 3581 and deep sleep mode

Latest Solutions

Paid Out-of-Warranty Replacement Parts Request – Precision 5560 Battery & Speakers

Unlocking HDD BIOS PASSWORD states data will be destroyed

WiFi not show in my laptop

Precision 3571, battery replacement

M4600 no-longer loads Windows. Scrap or rebuild?

Dell Support Resources