Closing the lid on T420 for hibernite

[Kameeleon]

I have issue when closing the lid. From Power manager its set to closing the lid = Hibernite
BUT.... its sometimes stays on or resumes, because when I take it out of sleeve, its hot as h*ll and on user logon dialog.
Im sure its hibernates at first, because battery and sleep led indicators flash for a while and then stay off. No sound from HD or fan.
Any ideas how to prevent this kind of restarting?

TNX

[Colonel O'Neill]

Do you have Timer Wake on Battery Operation enabled in BIOS?

[Q-Ball]

Windows 7 hasn't improved its power management scheme from far, far back as far as closing the lid is concerned.

So sometimes it will fail to sleep/hibernate properly. Happens to everybody.

Anyways, I'd also make sure that "Enable Wake Timers" in the Advanced Power Controls (Control Panel, Power, a plan, change advanced settings) is set to off (just on AC power, or completely- the choice is yours).

[zhenya]

I had a z60t that would turn itself on without fail in my bag. I had Lenovo replace almost every part on that machine, and it still did it. I ultimately had to retire it to office desk use, and get another machine, as being on the road so much, it was not acceptable.

As long as you are sure the machine is hibernating completely, this is unlikely a Windows issue. BIOS options might be responsible, but hibernate is full 'power-off', so Windows has no way of starting the machine - it must be done at a lower level. In the short term, you can remove the battery to prevent this (as long as you are using Hibernate and not Sleep).

[blackomegax]

I had a z60t that would turn itself on without fail in my bag. I had Lenovo replace almost every part on that machine, and it still did it. I ultimately had to retire it to office desk use, and get another machine, as being on the road so much, it was not acceptable.

As long as you are sure the machine is hibernating completely, this is unlikely a Windows issue. BIOS options might be responsible, but hibernate is full 'power-off', so Windows has no way of starting the machine - it must be done at a lower level. In the short term, you can remove the battery to prevent this (as long as you are using Hibernate and not Sleep).

My X61s did that with a bluetooth mouse bonded. without fail.