I recently noticed that my 2 month old M3800 laptop has 2 horizontal lines / bands running across the laptop display. I have 2 dell monitors setup with no issues, the lines / bands only appear on the laptop screen.
Anyone else encounter this same issue?
I am ready to contact Dell for a replacement / fix...
This seems to be an issues with many M3800's I've had 5 different machines displaying this issue. The horizontal lines come at 1/3, 2/3, and at the bottom of the screen (the one at the bottom is easy to miss.) If you run the built in display test, the lines don't seem to appear but they show up quite readily if you use 3rd party screen testing programs (I use PassMark MonitorTest), specifically on Grey and Green colors and screens with horizontal gradients where the color changes along the lines.
Definitely get it replaced, but don't be surprised if the replacement ends up doing the same thing. (I've had two different 'fixed' units have recurrences of this issue.)
Thank you for the reply. Your experience is not very reassuring that this is an anomaly...I researched & purchased the M3800 because of using Autocadd and the need for a higher end laptop!
I did receive a replacement laptop from Dell...fingers crossed this issue does not return!
Just a me-too: exactly the same issue, my machine is 6 months old and I'm waiting for the tech guy to replace it.
I'd just add that the bottom stripe is flickering noticeably.
I have the same issue from 13/01/2015. 3 technicall assists after (in warranty) and the problem is still present today. Now Dell require me more money for repair my product Dell M3800. I feel helpless and cheated ¿What I can do?
I am in the same situation. I am sure they need to get their engineers to correct the underlying issue instead of wasting perfectly good replacement parts and labor.
FYI, there seem to be a bunch of threads about this. See below. These are just a couple that I found in the past few days. Maybe, we need to combine threads to get a response from DELL. Seems, they are knowingly selling lemons, which is illegal.
Same problem here. I'm on my 2nd replacement screen on my M3800 and the flickering just started again this morning - not 2 weeks after screen replacement (note that they first tried motherboard replacement, then screen replacement - nothing works). Dell definitely needs to find a fix for this. The repair tech indicated that many times they send "refurbished" parts out for the on-site repairs, therefore the problem may not be getting fixed. It must be a hardware issue as the system passes all of the diagnostic tests. I'm seriously considering dumping this laptop in favor of something from another manufacturer.
Some interesting findings from my screen issue - interested to see if anyone else has had the same problem with their M3800.
I had my screen replaced in May 2016 due to some dead pixels appearing - after a week I started seeing the problem with the screen flickering.
My suspicion is that a faulty or refurbished screen was used under warranty as a replacement screen. Needless to say, I've run all the tests (and them some more) above..
What I have noticed, is the vertical lines
Above: The external monitor is a duplicate of the laptop monitor. The light grey lines on the laptop screen are from the open applications (as can be seen in the taskbar on the duplicated monitor - chrome (offscreen), spotify, outlook, google keep, citrix). The lighter mid-grey area to the very left of the laptop screen is created from the Cortana "Ask me anything" field in the taskbar.
Above: Only one application open this time (chrome), therefore only one light grey verticle line. Each shade of grey corresponds to the colour of the bottom-most row of the screen (the taskbar in my case).
Tests I've done...
1. Safe mode: flickering lines still present. Changing the resolution from low to native in safe mode seems to make the flickering problem more apparent.
2. External monitor: no flickering lines on the monitor at all, only seen on laptop screen
3. LCD BIST - solid colours ok (although catching the flickering problem at the same time as the BIST test is difficult to do as the flickering happens a lot, randomly (and often makes my screen solid black/white after a while)
4. Diagnostics - through the Dell website, nothing found
5. Driver update - checked all drivers and rolled forwards to the latest, backwards to the most stable, doesn't make a difference.