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DELL E6420 screen blinks when plugged in or off the charjer


I have the same problem that mentioned here

when I plugged in or plugged off the charger the screen turned off for a second and appears again.

I’m pretty sure that the graphic driver is the latest version (windows 10 updated it) and in safe mode

I don’t have this problem any more

help me with this problem please

thank you

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1 Reply

RE: DELL E6420 screen blinks when plugged in or off the charjer


Is there any damage / liquid spillage on the system? When did the issue start?

Are you using an original Dell OEM Adapter? When you plug in the adapter to the system, does the adapter stay firm or does it fall off easily? Is the adapter frayed? Could you test with another power adapter if possible? 

Update the BIOS - restart and check.

Enable the built in admin account and check.

Connect an external monitor and check if the screen flickers on both the displays when the power adapter is connected / disconnected. 

Lastly, try reinstalling the video drivers from vendor site Intel.com or nvidia.com as applicable.

Also, please click my DELL-username and write me a private message with the service tag and your Name for case records.

Let us know if you have any other queries.

Thanks and Regards,
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