No Hdmi singnal?

I connected my laptop to my monitor and he always ran very well.

But hätte I pc and monitor annealed and when I came back after about 2 hours back had my monitor no signal.

I have the HDMI cable changed and have tested another screen but always no signal, it is believed s.Laptop.

Can someone help me please quickly

Keep calm. Turn the calculator off and on again.

Thank you is still not

Windows internal options maybe?

If you were away for 2 hours, the wsl eif was the "automatically turn off the screen after 2 hours" mode

And what do I have to do in the Internal Options?

Saving energy on screen off