Aopen monitor and a new Lenovo computer

I got the same problem on my wife's monitor hooked to her laptop. As it seamed to be a monitor problem I check all connection and all looked ok. Turning monitor off and on did not work. For all us Windows user we know than nothing works reboot. So how do you reboot a monitor when turning it off and on does not work. The same way you reboot your voip phone or DSL modem, you unplug the electric cord. This worked fine for my wife's monitor as well.

resize the screen resolution to the lowest and change the monitor refresh to60 hz . then play with the refresh and then the screen resolution.