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Laptop turns on, screen is completely off.


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#1 0wn3dz

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Posted 18 October 2017 - 10:06 AM

Hello, I have a laptop Dell Latitude E5540, running Windows 7 x64. A few months ago I started experiencing this problem. I press the power button, laptop behaves the same way as it normally does, leds turn on, fan starts spinning, but the screen is completely off, no "black screen" with the backlight on, it's just off. And it stays like this for no matter how long you wait. Once you turn it off by holding the power button and then turn it back on, same thing happens. After doing this multiple times, eventually the screen turns on, post, dell logo, and the laptop boots to windows without any problems. This issue got worse by time, requiring more and more restarts until the screen comes on, and now it reached the point where I am literally unable to get it working.
 
Things i've tried:
 
- connecting to external monitor via HDMI, monitor is not detecting any input.
- taking the hdd out and turning the pc on, same issue.
- laptop has two ram slots, filled with two 2GB sticks, i tried taking one out, switching slots in all possible cominations, nothing.
- taking the battery out and pressing the power button a few times, then plugging in the charging cable and turning the pc on, nothing.
 
That's about it I guess, any help is appreciated, thanks!
 


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#2 Kilroy

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Posted 18 October 2017 - 11:48 AM

Welcome to Bleeping Computer.

 

Pressing the power button may not have done what needed to be done.  You can try removing power and battery and then hold down the power button for 30 seconds and then reassemble.  Doing this removes all power from the system.  This is a common issue with both Dell and HP laptops.  Once corrected it normally will work for months before the issue returns, if it returns.



#3 0wn3dz

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Posted 18 October 2017 - 01:54 PM

That unfortunately didn't work either.






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