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Div0ne
Paper Tape
Posts: 2
Registered: ‎11-15-2015
Location: Ireland
Views: 237
Message 1 of 4

U430p display goes completely dark when I unplug power cord

Hi there, my laptop was only four days old when I started experiencing this issue and that was a week ago. Also the bezel panel was loose on one side and has to be clipped back in routinely after moving the lid, is that a typical occurrence with this model? I've already contacted the company I bought it from but I'm hoping you can help me with the display issue in case they won't do anything.

I'm running Windows 8.1. Whenever I unplug my laptop the screen goes dark but the backlight is still on. Absolutely no combination of keyboard keys will rouse it from this state apart from onekey recovery. The machine doesn't shut down and all the lights are still on. Once I plug it back in the screen returns and the laptop is still running normally. I did notice that before I had signed into Windows, I unplugged the cord and the screen dimmed as normal instead of turning off. However issue exists again after sign in.

I have already tried...

*System Restore
*Reinstalled all updates twice (before/after restore)
*Updated and Reinstalled all of my drivers (including energy management & its software is also up to date)
*Changed power / graphic settings
*Brightness is at 100% for each plan and settings. Even turned it to 0% and unplugged... which only meant the backlight disappeared. Display turn off/sleep will not happen on any setting until after 5+minutes

I can't take the battery out, really don't know what else to do. I'm a bit lost.

 

Retired Support Specialist
Posts: 734
Registered: ‎08-24-2015
Location: Egypt
Views: 203
Message 2 of 4

Re: U430p display goes completely dark when I unplug power cord

Dear Div0ne,

 

Welcome in lenovo community,

 

Kindly try to,

 

1- Open Control Panel\Hardware and Sound\Power Options.

2- On your current power plan choose Change Plan Settings.

3- On Adjust plan brightness Move the scale to the maximum under both of, On battery and Plugged in.

4- Click Save changes and check after that.

 

Regards,

Joseph

 

 

Div0ne
Paper Tape
Posts: 2
Registered: ‎11-15-2015
Location: Ireland
Views: 191
Message 3 of 4

Re: U430p display goes completely dark when I unplug power cord

"I have already tried...

*System Restore
*Reinstalled all updates twice (before/after restore)
*Updated and Reinstalled all of my drivers (including energy management & its software is also up to date)
*Changed power / graphic settings
*Brightness is at 100% for each plan and settings. Even turned it to 0% and unplugged... which only meant the backlight disappeared. Display turn off/sleep will not happen on any setting until after 5+minutes"


That was one of the first things I did I'm afraid. Thanks for your response though Joseph

Retired Support Specialist
Posts: 734
Registered: ‎08-24-2015
Location: Egypt
Views: 163
Message 4 of 4

Re: U430p display goes completely dark when I unplug power cord

Dear Div0ne,

 

In that case please backup your data and run system reset,

 

To reset your PC

 

  1. Point to the upper-right corner of the screen, move the mouse pointer down, click Settings, and then click Change PC settings.
  2. Click Update and recovery, and then click Recovery.
  3. Under Remove everything and reinstall Windows, click Get started.
  4. Follow the instructions on the screen.

Regards,

Joseph

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