T430 2 suspend modes?

I have a T430 with Gentoo Linux and Windows 7 installed. I use gentoo most of the time and I always use sleep/standby/suspend to ram instead of powering off. I noticed that when I put it to sleep mode, sometimes the moonlight led switches on and sometime not. Problem is, if it lights, then for some reason the laptop wakes up all by its own after a while. If I put it to sleep and (luckily) moonlight led doesn't switch on (even though it successfully went to standby mode), then this problem never occurs.

I then switched to Windows to see if same problem existed and I noticed the following; when I put it to sleep, moon led switches on, and then after sometime of being in sleep mode, moon led switches off (still in sleep mode, only led switches off). Another thing worth mentioning is whether on Linux or windows, if moon led is on when put to sleep, then a resume/wakeup takes much less time to finish, than that when moon led has been off.

So I don't know if this means that the T430 tries to automatically go into a "deeper" sleep mode after a while of normal sleep, which Linux can't handle for some reason (and when succeeds on windows, the moon led switches off)? This is annoying because when on Linux and it wakes up by its own, battery is consumed as most of the time I have the charger unplugged and the laptop in my bag so it might as well overheat. I still can't find a way to even force into that "deep" sleep mode initially on Linux, it just happens once in while. Any idea?

 

Look up Hibernate.

 

lol I know what hibernate is, and it's not hibernate. Laptop is not totally off in both modes I mentioned and power switch blinks.

More over, I mentioned that it goes into that "deep sleep" mode sometimes when I suspend Gentoo to ram (sleep), AND I haven't even configured suspend to disk (AKA hibernate) on gentoo. So, it's not hibernate.

Edit: Just found out there is really a deep sleep state, which makes use of my SSD. I guess you need to look that up Still looking into how to either disable it, or handle it on Linux

 

AFAIK Ivy Bridge added no new power states.You may be thinking of Intel Smart Response.

Are you going into suspend by closing the lid, or with Fn+F4/software? If you are closing the lid, it's possible that the system is waking up when the moon icon turns off, and when you go to open the lid it looks like a fast resume. This could be caused by a faulty keyboard. If on the other hand, you are suspending with the lid open and see this behavior, it sounds like a hardware problem because the sleep icon (at least according to the T430 user guide) has no special state where the computer is in suspend with no moon icon (look on page 9).

http://www.lenovo.com/shop/americas/content/user_guides/t430_ug_en.pdf

 

You're saying the disk hibernate setting in Windows had no effect when you were running Windows? That's odd. I thought the default behavior for capable machines and disks was 360 minutes.

 

I figured out the whole the thing and I'll post it as a reference for others.

If you have a SSD and "30 Days Standby mode" enabled in Lenovo's Power Manager, then Intel Rapid Start gets enabled and entry time is set to 3 hours, overriding whatever value set in BIOS, even if it's totally disabled in BIOS ( see that post by a Lenovo Staff member)

So what happened on Windows is that, I put the computer into sleep mode, which puts the data normally onto RAM and goes into S4 (sleep) state normally. After 3 hours, BIOS wakes up the computer, moves the data onto the SSD, and goes into an even lower power mode, this is when the moon led switches off. This is still not hibernate, computer is still on in a lower power state and hitting the power button/ opening the lid is as same as waking it from standby, but takes a bit more time while restoring data from the SSD.

Now the problem with Linux is that it most probably it cannot automatically handle the transition from normal sleep state to a lower power state. Therefore if Rapid Start is enabled in BIOS, Linux doesn't consider the BIOS value of "entry time" for that state and goes into the lower power sleep state mmediately everytime. So when I had th option totally disabled in BIOS, Linux thought it's disabled. But being overridden by Windows settings, BIOS still woke up the computer after 3 hours of sleep and then Linux doesn't know what to do at that situation.

So to solve it, disable "30 days Standby" from Lenovo's power manager, or totally uninstall Lenovo's power manager so that Windows uses BIOS settings. Now if Rapid Start is enabled in BIOS, Windows should handle it perfectly (if Lenovo's power manager is uninstalled) and Linux would handle it as well, only disregarding the entry time. And if Rapid Start is totally disabled in BIOS, then Both Windows and Linux would only go into normal Sleep state (with mood led on) without any problems.

So I guess this is solved. Thanks for your suggestions.

 

Very interesting. Thanks for running this down. So what do we call this new deep sleep mode?

Nominations:

1. Deep Freeze
2. Kryo
3. Black Ice