No graphic signals after restarts

Could You post some Hardware Specs of Your Machine? CPU, GPU, RAM etc.
Do You have a Dual-Boot System?
Are Secure Boot and Fast Boot in the BIOS turned off?

See here

No, only ZorinOS

I think, both active, why?

Because it cause Issues. Please take a Look at it and when they are active, turn them off and then try if the System runs.

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