Question ion Laptop black screen but it displays on external monitor

May 22, 2022
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Hi

I dont know if i have broken the ribbon cable or whats wrong.
But the laptop screen got black with no backlight working after i plugged it out and in again.
I tried using a flashlight on the screen but i cant see anything.
The GPU fans are working fine.
If i connect it to an external monitor i can view the laptop screen and it reads just fine on the external monitor.
Can it be a damaged ribbon cable or the screen?
Because i find it weird that i can view my laptop screen on my external monitor if the ribbon cable isnt broken.
 
May 22, 2022
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Has this laptop been opened (like for internal servicing) since this happened? What makes you suspect the ribbon cable, otherwise?
Because i removed the screen without disconnecting the laptop battery and the laptop power was turned off. But when i try to use a flashlight on the screen i cant see anything so i doubt its the backlight. When i look at the ribbon cable it doesnt look broken.
 
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