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599 Posts

05-24-2018

CA

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Strange screen dimmness behavior on X1E 4K

2019-05-08, 21:46 PM

Hi, got a new X1E with 4K screen.  At max brightness, when I plugged the AC adapter to the X1E, the screen became dimmer. When I unplugged it, the screen became brighter. Plugging the AC adapter back to the laptop dimmed the screen again. What is happening? I did not have this issue on my first X1E.

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296 Posts

08-02-2018

PH

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Re: Strange screen dimmness behavior on X1E 4K

2019-05-09, 22:53 PM

Hi lenovotv!

 

Welcome to the community forums.

 

It might be the brightness level in power options is set to a lower brightness when the Ac adapter is plugged in. Could you check that? 

 

Press Windows+X to show the menu, and choosePower Options on it. Type power op in the search box on taskbar, and select Power Options in the results. Way 3: Open Power Options in Control Panel.

 

Let us know if that worked. Matt_lenovo



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599 Posts

05-24-2018

CA

1231 Signins

9100 Page Views

  • Posts: 599
  • Registered: ‎05-24-2018
  • Location: CA
  • Views: 9100
  • Message 3 of 3

Re: Strange screen dimmness behavior on X1E 4K

2019-05-10, 3:21 AM
Thanks matt_lenovo, I am at Power Options. Can't find anything about brightness level. where is it?
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