Question Dell Laptop Display extremely dim and flickering

PcRigs

Reputable
Feb 6, 2017
33
0
4,560
5
Hi,

Main Issue: The display is extremely dim. If it becomes normal, it randomly flickers or goes off for 30-45 seconds before coming back to normal.

I recently purchased a Dell Vostro 15 inch laptop. (4 months ago)
Until yesterday the laptop was working fine. Today when I powered it on, the Dell logo was very dim and it directly went into Dell Diagnostics (very low brightness , was unable to read what is on screen), where it remained stuck.

After several reboots, I got windows to load, where it seemed like a windows update just completed.
Once it loads, the display becomes normal, but randomly the display goes off for a minute or so, or flickers continuously for a minute.

I have tried testing the display by holding the 'd' button when powering on the laptop. On testing , the display works perfectly.

Does this look like a software issue or a hardware issue?

Any ideas on how to resolve it or troubleshooting tips

Sorry for the long post.
Thanks :)
 
Sep 9, 2020
10
0
10
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Is it under warranty?
Complaint it.

If it is older, I'd guess the faulty backlight (hardware issue).
(CCFL or LED or their power supply.)

The simplest test is to connect a spare display with the same type of backlight and see if it is lit normally.
 

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