I have a dell inspiron 8500 laptop screen shows black lines
I was on my computer and suddenly the screen went white shows colored lines now it has black 1/4" lines with white background is my screen wiped out and i have a desktop monitor tried to hook it up and nothing happens?
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What you have is a cracked screen. The LCD panel is cracked and is leaking fluids to the rest of your screen, those dots will spread too. This happens when u pick up the computer from the screen. You could try finding a replacement laptop screen, or get a new computer. They aren't that expensive. Make sure you save your hard drive tho!
disconnect all the cable from the monitor except the power cable .
see if you see any test screen and keep it on ,if the test screen blacks out you monitor is bad ,better buy a new one as usually repairs cud be expensive
Have you unplugged the power cord to the LCD? Let it sit for a minute, then try it. ALWAYS buy a UPS and plug any computer devices into it. Doesn't have to be big, a $50 unit will protect it from dangerous voltage surges.
It sounds to me like you are having a problem with the video card on the motherboard, I am not familiar with this model but some you can remove the video card and upgrade, some you can not.if you can upgrade you can try this if you cannot remove the video card then a new motherboard will be required to fix this computer. you can look on ebay for a replacement at a reasonable price or talk to your local computer service center. hope this helps.