Laptop screen goes blank - new F37 - Lenovo E14 G2 AMD

[lejeczek]

Hi guys.

I've just upgraded to f37 and for the first time I 
experience what I've heard others "suffered" from - some 
builtin LED/LCD monitor issues which, if I remembered 
correctly had something to do with power management deep in 
kernel/drivers.
Does anybody else see this?
Again, this is a first for me, no problems with previous 
Fedora versions. A quick fix is to bring up "Displays" from 
settings - I have an external monitor connected - and switch 
from "Join" to "Mirror" and back to "Join", which is how I 
have it.

many thanks, L.