Dell Latitude E6420 Black screen of death but external monitor working
My Dell Latitude E6420 has black screen of death. Let me explain what happen. My friend bought a battery for his E6440 laptop and his laptop not starting (no display) he asked me to check on my laptop for that battery.
My laptop display gone after inserting his battery and changed to my battery still didn't worked. I connected external monitor display coming there (external monitor is showing primary). but laptop display not coming to make it secondary.
I did steps.
1. drained power 30-1-2. still didn't work
2. changed RAM slots with another still didn't work
3. tried D+ power, did not see anything.
this morning I observed If close display 70 to 80% I can see barely light on the screen window login in the angle.
Is that means back light gone? What are solutions have now? Do I need to change display? give me suggestion.
I believe I have solved the Dell Latitude black screen of death puzzle that no one has ever effectively answered.
I purchased a used Dell Latitude E6410 laptop which worked perfectly. A few weeks ago I managed to crack the LCD screen by stepping on the laptop. I decided to replace the screen.
My original screen was made for Dell by AU Optronics. This screen worked perfectly with the software and hardware in my Dell Latitude E6410 using Windows 7. The replacement screen I purchased (which was said to be the correct replacement for the E6410) was made by Samsung.
The minute I put the Samsung screen in, the black screen of death problem began occurring and no matter what settings or updates I use, I cannot solve the black screen of death problem.
Dell used both AU Optronics and Samsung screens in the Dell Latitude line. The reason why Dell has never offered an explanation or solution for the black screen , and if they admitted that problem there would be a huge class action suit against Dell.
Brad Cheng さんによる
Thanks for the solution! I have the same problem.
Zoltan Muntyan さんによる
@Brad Cheng: What a nonsense, you're totally wrong.
#1: You talk about E6410, but even there it's nonsense.
#2: Dell using different OEMs, so far correct, but these parts are interchangeable with eachother. In the case of the display of E6420 it must only be same resolution, technics, connector and measures.
#3: If Dell would use parts from different OEMs which aren't interchangeable, they'd bring avoidable trouble in their warehouses, no company is doing that, they wanna save costs.
Jay van Horn さんによる
Don't miss to disconnect the battery and charger before you change display. Especially batteries are often the reason for sudden death of displays in this matter.
Jay van Horn さんによる