Graphic glicht in debian with nvidia driver 450.66

Hi everyone,
I’m using Debian testing (but I tried also stable), and installing the drivers (450.66 on both testing and stable) for my Nvidia GeForce 950m (with the command “apt install nvidia-driver”), the screen sporadically does graphical glitches. These consist of flickering, until I move the mouse abruptly. I tried to migrate from xorg to wayland, but the latter is blocked by default when installing proprietary drivers. This problem persists also reinstalling the nouveau open source driver. So, what can this depend on?
Ps there aren’t hardware problem, because with windows, it worked fine.
This is my nvidia-bug-report -> nvidia-bug-report.log.gz (323.1 KB)