I have a dell laptop that I purchased a few years ago. I managed to completely break the screen, resulting in it showing a cracked black and flickering white screen when it is on. After I broke it, I tried hooking it up to a monitor. It seemed to work perfectly, and I continued to use it like that for a while. Recently, however, I updated my laptop. After it turning off, it turned back on, but didn’t show anything on the monitor. Now, I can’t get it to connect to the monitor. I have let it sit overnight with no results. I have tried shutting it right after turning it on as to default it to using the monitor, but it just shut off. I have pressed F8 (the “change display” key) many times to no avail. Any suggestions? I want to see if I can find in case I don’t need to have it repaired. Thanks.