Laptop screen is bright white


I have a laptop which when I turn it on the screen is bright white and you cannot do anything on it. The screen is white all the way through the BIOS setup and POST so you cannot enter the BIOS or boot from CD.

However if I plug in an external display using a docking station the external display functions correctly and allows me to login to Windows and control the OS but the laptop Display doesn't work still and remains white.

I have tried updating the Drivers for the display and also updating the Graphics card drivers and I am still getting the same issue.

I have also tried adjusting the brightness of the display using the keyboard shortcuts FN + Up\Down Arrow.

Finally the laptop is a Dell Latitude E5420 running Windows 7.

Has anyone seen this before or Know what could cause this issue?
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You have a condition called as burn out, your Laptop display has gone bad and need replacement, it a Fault with the Screen not my the rest of the system.

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It is a lcd display problem of your dell laptop, i suggest if it still under manufacturers warranty bring it over to dell service center for a monitor replacement.

Hope that helps.
Pramod UbheCommented:
This seems to be hardware issue rather than software so updating drivers will not help if there is an issue with your display.
Contigo1Author Commented:

Thanks all for the help I suspected it would be a hardware issue but was just hoping it wouldn't be.

I will go an speak to Dell support and see if I can get a new screen dispatched out.

Thanks all for the help and I have distributed the points now.

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