If your computer is not detecting Generic PnP Monitor, here are some troubleshooting tips you can follow to fix this issue. It is quite a common issue after a driver update or a malware attack.
My new ThinkPad T60p has been getting confused when switching between my home setup (a 22" widescreen monitor as a 2nd monitor) and my work setup (a 20" normal aspect ratio monitor as a 2nd ...