02-07-2015 08:48 PM
I've owned my Thinkpad Edge E440 for a couple of months now and have had no issues with it until this week.
This week, my screen began flickering and going pure white when I turn it on. By adjusting the screen back and forth, sometimes the white disappears and the flickering goes away.
I suspect a short in the display ribbon, but I'm not completely sure what is going on here. Any thoughts as to the cause of the whiteness and flickering?
02-09-2015 04:13 AM
Welcome to Lenovo Community!
As per the query we understood that you are facing issues with Display flickering on your ThinkPad Edge E440.
Hope this helps. Do post back if issue persists!
02-14-2015 05:05 PM
The problem is present in BIOS mode and is present in both Windows and Linux (I use both as part of my work).
This leads me to think this is a hardware issue, not a driver issue.
After further investigation, the display cable/ribbon seems to be fine. I have also tried reseating the connection to the display itself, and that did not help either.
It looks like there is something wrong with the display circuitry itself, perhaps a manufacturing defect?
02-14-2015 09:19 PM
02-14-2015 09:48 PM
Good thought, but I checked the other end as well, and it seemed okay...
With the display bezel off, I can sometimes restore a picture (or at least see some different white noise) by pressing firmly with a plastic probe on a certain spot on the lower right side of the display. It looks like there is some circuitry underneath, but it is on the opposite side of where the display ribbon connects in, and I can't seem to change anything in the signal by adjusting the display cable anywhere.
The trick with the plastic probe only kind of works, and it usually just changes the type of white display flicker I get, but doesn't generally restore a picture.
The laptop is only a few months old, a shame really, I was actually pretty happy with it until this point.
02-15-2015 11:32 AM
02-16-2015 04:38 PM
Yes, it should still be under warranty. I've been surviving off of an external monitor for now.
Ideally I could just persuade Lenovo to send me a new panel---I have the tools and so on to install the panel myself, it just looks like my current one is defective. I'd send it into Lenovo to fix it, but as I use this machine frequently for work-activities, it would be difficult to be without it for any sort of extended period.
I used to own a crummy Dell, and they just sent me a new keyboard when their original (literally) started falling apart. Would Lenovo be willing to do the same with a display?
02-18-2015 09:38 PM