Black screen after suspending laptop & drivers

It seems to be a very common problem. That's the second laptop I install Zorin (previously lite, now core) and the same problem occurs: every single time I try to wake up a laptop after suspending it, the screen remains black.
I've tried almost everything on the following link 18.04 Screen remains blank after wake up from suspend - Ask Ubuntu
If I use an older kernel my touchpad doesn't work, editing the
/etc/default/grub file just make the screen freeze...
But one thing I've noticed is that there's "no additional drivers available" on software&updates. Maybe that's the reason for my problems? If so, what can I do?

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