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hunyolagos
Paper Tape
Posts: 2
Registered: ‎08-16-2018
Location: PH
Views: 626
Message 1 of 4

White horizontal line across the screen (Lenovo G40-70)

After the system rebooted from updating, I initiated a disk clean up for the system files. But the deleting took so long I decided to connect my laptop to an hdmi and watched a movie while waiting. But the deleting hasn't completed yet even after I'm done watching so I disconnect the hdmi and left the laptop for a while. The dispay had timed out when I return so I double tapped the touchpad and when the screen turn live again a white horizontal line is in the screen, it looked like connecting lines when you dragged your cursor on you desktop. Line still appears in BIOS but is fine when connected on hdmi. Any solutions for this problem? Thank you in advance for answering.

Sr Support Specialist
Posts: 9,101
Registered: ‎11-30-2015
Location: PH
Views: 568
Message 2 of 4

Re: White horizontal line across the screen (Lenovo G40-70)

Hi hunyolagos,

 

Welcome to the Community Forums.

 

Having the same line on the BIOS isolates the issue with the LCD / LCD assemblies /cables as possible point of failure. This separate any relation to Windows and drivers as it shows ok using another display output monitor.

 

You can try cooling it off for 2 hours removing the battery and pressing the power button for 12 seconds to drain flea power. Check back on the machine in the BIOS and if you still have the same lines maybe reseating the LCD cables can be done securing it to its connectors and lines not being stretched/ free from strain. 

 

Here is also the hardware manual for review if you have the tools and skills but best to have a service center do it for you if needed.

 

I hope this helps answer your query.

Update us how things go.

 

Regards



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hunyolagos
Paper Tape
Posts: 2
Registered: ‎08-16-2018
Location: PH
Views: 537
Message 3 of 4

Re: White horizontal line across the screen (Lenovo G40-70)

Thank you for your response and sorry for the late reply. Will be trying your suggested procedure. Again, thank you for your generous reply.
Sr Support Specialist
Posts: 9,101
Registered: ‎11-30-2015
Location: PH
Views: 527
Message 4 of 4

Re: White horizontal line across the screen (Lenovo G40-70)

Hi hunyolagos,

 

Greetings.

 

Just to set expectations, seing the same lines in the BIOS may indicate hardware issue so best to have any local service tech check on the LCD and cables for isolation.

 

Don't hesitate to update us here in our community at anytime.

 

Regards



Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.

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