Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: My computer will turn on but the screen is black
Document: It allows power to the laptop. However, it DOES NOT charge the battery and I have had to hold down the power key and then plug in to the computer to get the computer to turn on.
i ordered this cord for my model number cmputer and wehn it arrived it was no where near being the correct cord for my computer. i in turn emailed the person i received the product from and as of yet have not received a reply
The power supply cord works to charge the battery, but I can not use the computer when it is plugged in. The mouse will not move and the screen flashes on and off when the cord is plugged into the computer. I did not spend a lot on this, so you get what you pay for.
worked great with my inspiron 1525. I was a skeptical because of the reviews saying that it would not charge. But I still ordered it and im happy I did. At first the computer didnt.recognize the charger but I still I kept it plugged and afterwards the laptop just charged normally ... I was scared it wouldnt turn on since its been uncharged and unused for more than 6 months but the charger works great.
I got this Power Cord a few months ago and it works great, my only complaint is that when it is plugged in, it is creating some interference with my crappy projection TV thats probably around 10-15 years old, not the point. The whenever the cord is plugged in the screen on my TV gets fuzzy, I've even tried moving it to a plug on the other side of the room, but for some reason my TV just doesn't like it.
The right one my computer was just toast had to give it a try to see if it would work.
Price was goodQuality was goodOverall it has been exactly what I neededI would recommend it for your computer
Love it works great with my computer. use it all the time. I just ordered off the amazon web site
My computer keeps dying on me, I dont know if its the battery or the cord, but neither is working properly and its very frustrating.
It fit my computer perfectly for a much lower price then the stores wanted! I was very happy to have my computer back!! !
Answer: Assuming that this is a laptop, it could be a variety of things. I know that at least with a desktop, no screen activity during startup is a sign that the motherboard might be dead. I don't want to rush you into a panic, but I can tell you that the problem most likely has nothing to do with the adapter. Are you still getting sound? How old is the laptop?