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Re: Half a Screen
Check first by connecting it to an external monitor. If you see that it is the same problem in the external monitor then I think there is something wrong with your video card. See if you can re seat the video card.
This issues also come from the cable that connects the LCD with the motherboard. Have you opened the Laptop anytime and moved the cable?
Check these first. It sounds something loose or a something related to video card.
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-Yes you can reseat the lcd cable, follow some steps on your manuals ,If you dont have manula download the manuals from support.dell.com use your service tag. after reseating the lcd cable and still the screen is half ,try external monitor if the desktop is displaying properly may be you can consider that the lcd screen back light is damaged.try replacing the whole LCD or bring the whole system to a local store and repair the lcd back light.
Heres a common issue in the field. Of course you must always make sure you have the latest DELL BIOS version.
There is a device that controls the screen called an invertor. This sits in ths screen housing usually toward the bottom. Sometimes people close the lid and forget about the inkpen they were using. The fix in my six years in the field has always been replaceing the LCD.
Well the issue is usally with the Video driver.Try reinstalling it from the support.dell.com and that should resolve the issue.Also you can try connectring a external moniter and see if you get the proper display on that or not.Incase you do than issue is with the screen and incase its the same on that as well than its an issue with the video card.You can get either of the two replaced accordingly.