Lenovo Thinkpad T14 Gen 2 sleep states

[mark]

Forgive the newb question, but as the title suggests, I’ve just installed Endeavour on a Lenovo Thinkpad T14 Gen 2, and being relatively new to the OS, was just wanting to know how I can check if, when the laptop is going to sleep, it’s using the modern standby, Soix type sleep.

In the BIOS the sleep settings are set to Windows/Linux, which I’ve got set, with the only other option being Linux S3. I’ve had a read of the Arch wiki for the laptop model, which suggests that modern standby does work.

Full hardware specs are here

For all I know it might be working exactly as designed, but I’d like to check. I’ve Googled around the question and not found much definitive, so thought I’d join the forums and fire the question off to the community.

Any help anyone can provide would be much appreciated.

[petsam]

@mark

it’s using the modern standby, Soix type sleep.

I suppose this is just a nice name.
Read/find about the actual features that the name is advertised to accomplish and confirm they are actually as advertised.

[mark]

As far as I know, Intel refer to it as S0ix, Microsoft call it Modern Standby, and S2Idle as far as the Linux kernel is concerned.

From reading bits at the Arch details on power management, some Intel open source docs on S0ix, and the kernel docs on system sleep states, they all seem to talk about triggering the sleep state manually through writing a string to a file, which is fine, assuming the system supports it, which I don’t know if it does or not.

Ultimately what I’m looking to achieve is the S2Idle/S0ix/Modern Standby sleep state via either closing the lid on the laptop, or just by the device being idle and going to sleep. Whether all this is affected by my desktop environment, GNOME, I have no idea.

[sradjoker]

Welcome to forums Mark!!

[mark]

Thank you

[Zircon34]

@mark

option being Linux S3

That’s the option you want. I just wrote a post yesterday, never heard of that windows deep sleep before that.

Bios deep sleep windows strikes again

I was wondering, how do you deal with the deep sleep issue in bios? Windows has apparently managed to introduce a new suspend mode similar to what happens on cellphones, meaning the computer drains more battery than conventual suspend (aka deep sleep S3) so it can retrieve emails and other things like that while in sleep/suspend mode. https://wiki.archlinux.org/title/Lenovo_IdeaPad_5_14are05#Suspend_issues_(S3_sleep_fix) What that means for Linux, that the computer drains battery while on sus…

The only thing I can say is that it drains my battery while on suspend. And I don’t have the option to select S3 Linux.

[petsam]

@mark

Ultimately what I’m looking to achieve is the S2Idle/S0ix/Modern Standby sleep state via either closing the lid on the laptop, or just by the device being idle and going to sleep

I think you didn’t get my point.
It’s not about what you want but about what (they advertise) you have. That simple. In the user manuals you linked, there are descriptions of what you get on power/sleep.