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31 Posts

03-09-2015

India

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T490 goes to sleep on Battery but does not wake up!

2021-06-02, 5:52 AM

The keyboard seems to be functional but the screen does not wake up. This issue is persistent and only occurs when the laptop is not plugged in. 

The only way I get it to wake up is by restarting and losing all my work.

 

The laptop is fully updated using vantage.

 

Any help will be appreciated!

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5657 Posts

08-02-2018

Philippines

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Re:T490 goes to sleep on Battery but does not wake up!

2021-06-02, 12:49 PM

Hi Ritz_dirnt!

 

Welcome to community forums

 

 

Any changes made or any updates/programs installed before the issue came up?

 

Can you send us a screenshot of the display driver under the device manager and also the Windows and BIOS version  under the system information?


Let us know.

 

 

Jwes_Lenovo



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31 Posts

03-09-2015

India

23 Signins

180 Page Views

  • Posts: 31
  • Registered: ‎03-09-2015
  • Location: India
  • Views: 180
  • Message 3 of 5

Re:T490 goes to sleep on Battery but does not wake up!

2021-06-03, 16:17 PM

Hi,

 

I am attaching the screenshot of the Windows and BIOS version.

Can you please clarify what info are you looking for regarding Device Manager?

 

Thanks,

Ritesh

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12337 Posts

01-02-2010

United States of America

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Re:T490 goes to sleep on Battery but does not wake up!

2021-06-03, 16:22 PM

Go to the search box and type device manager.  The first entry will be what you want.  Take a screen shot


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

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5657 Posts

08-02-2018

Philippines

928 Signins

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  • Posts: 5657
  • Registered: ‎08-02-2018
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  • Views: 28794
  • Message 5 of 5

Re:T490 goes to sleep on Battery but does not wake up!

2021-06-03, 17:42 PM

In addition to what richk mentioned on how to open the device manager, the display driver is usually under display adapters on the device manager.

 

Try loading the default BIOS setup. Once in the BIOS, press the F9 key to load the default settings then press the F10 key to save it. 

 

Here is how to boot to BIOS: 
https://support.lenovo.com/ph/en/solutions/ht500222-recommended-ways-to-enter-bios-boot-menu-thinkpad-thinkcentre-thinkstation

 

 

 

Jwes_Lenovo



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