Windows 7: open laptop display and something funny happens

All you can do is try it. I'd try the easiest method first. If you can find another way to turn off the constant detected, undetected endless cycle go for it. You could just leave it as is but I would think the endless cycle of detect undetected would impact the performance of the PC and maybe cause problems when you connect a new USB device.
I can understand you not wanting to make things worse by breaking something while taking it apart. I striped a dell laptop down to the bar bones and had more screws and parts than I could count. I had a good set of instructions and was careful not to mix up the screws as I took it apart. I wasn't able to fix it but I did get it back together and it was no worse of than when I started. An old Acer wasn't so lucky though. It was destined for the recycle bin anyway and all I wanted was the hard drive to recover some files. It looked like it fell of off a ten story building by the time I got done with it. The only thing left working was the hard drive. I couldn't find instructions and couldn't figure out where all the hidden fasteners were. It was non functional when I started and even more so when i was done.