Cannot use my keyboard after unplugging the two additional monitors

Hello, Everyone.
I had two additional monitors connected to my laptop, and Desktop expanded on all of them.
Now I want to use only the laptop and I “mirrored” the two additional screens, and switched them off from the “Display”.
When I start the OS, I am able to enter the Disk password, and then I see the login window but I am not able to use neither the keyboard nor the mouse anymore.
I need to shutdown by pressing the power-off button, connect both additional screens again, and then I am able to use the input devices and login in (the login screen appears on one of the other displays).
Can you help, please to resolve ?