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ealgian
Paper Tape
Posts: 8
Registered: ‎12-11-2015
Location: USA
Views: 1,057
Message 1 of 10

T450s won't wake from sleep?

Got my T450s just two days ago and have the following issues with sleep mode: 

 

1. Fn + F4 does not activate sleep mode

2. Manually selecting sleep mode from Start --> Power results in one of following:

EITHER unable to wake from sleep mode. Pressing keyboard keys (incl Fn), using pointer, etc. none of these will work. Must execute hard shut down and re-start using power key in order to use the laptop. I know it is in sleep mode because the Thinkpad "i" blinks slowly and screen is dark

OR computer screen is black, but Thinkpad "i" is fully lit (implying it isn't in sleep mode) however the computer doesn't react to any typing or Fn to bring it out of sleep mode

 

Anyone else having these or similar issues? Please advise of any solutions. Have latest Windows 10 update and BIOS. Have fingerprint reader functionality but am not using it. 

 

This is my first Lenovo laptop, bought it for work and many of my coworkers were interested to hear what I think about the product. Don't think I could recommend it to them in all honesty at this point.... 

Guru
Posts: 9,598
Registered: ‎12-26-2009
Location: CA
Views: 1,006
Message 2 of 10

Re: T450s won't wake from sleep?

Can you try updating the Power Management driver?

http://support.lenovo.com/us/en/downloads/migr-4gxpeg

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
ealgian
Paper Tape
Posts: 8
Registered: ‎12-11-2015
Location: USA
Views: 992
Message 3 of 10

Re: T450s won't wake from sleep?

Thanks, tried this (my power mgmt driver was v.15 instead of v.20) but have nearly same issue, though recently I've found that after 30 min or so the computer seems to be totally shut down. So I press power button to turn back on instead of hard shut down and then turn on. 

Guru
Posts: 9,598
Registered: ‎12-26-2009
Location: CA
Views: 982
Message 4 of 10

Re: T450s won't wake from sleep?

When you turn it on, does it resume to your previous state, or do a cold boot?

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
ealgian
Paper Tape
Posts: 8
Registered: ‎12-11-2015
Location: USA
Views: 957
Message 5 of 10

Re: T450s won't wake from sleep?

Cold boot. Haven't been able to get it to open from previous state. 

taytay
Fanfold Paper
Posts: 9
Registered: ‎12-23-2015
Location: USA
Views: 752
Message 6 of 10

Re: T450s won't wake from sleep?

Have you resolved your issue yet?  I have the same exact problem so looking for some answers.

THINKPAD56
Paper Tape
Posts: 8
Registered: ‎01-28-2016
Location: USA
Views: 740
Message 7 of 10

Re: T450s won't wake from sleep?

are these all on windows 10 machines? Pro or home?

ealgian
Paper Tape
Posts: 8
Registered: ‎12-11-2015
Location: USA
Views: 730
Message 8 of 10

Re: T450s won't wake from sleep?

No not yet. 

ealgian
Paper Tape
Posts: 8
Registered: ‎12-11-2015
Location: USA
Views: 729
Message 9 of 10

Re: T450s won't wake from sleep?

I don't know. I have Home version. 

happyT420user
Paper Tape
Posts: 2
Registered: ‎06-23-2016
Location: RU
Views: 493
Message 10 of 10

Re: T450s won't wake from sleep?

Hello. Same problem on t420 both linux and windows 10. It is BIOS or other hardware problem. Will try to rollback BIOS.

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