[SOLVED] Screen breaks up, checkerboard like.

[JimmyJim]

Thank you so much. Success -- at least so far. I swapped out the Nouveau driver for "NVIDIA driver metapackage from nvidia-driver-470 (propreitary, tested)" -- that's how it is listed. both in the documentation and for real. I'm not a gamer, so don't pay much attention to graphics, just so long as it works and can stream video.

Tried my best to break it -- so far it don't break. And if I can't reproduce it it ain't a bug. I'll mark it fixed...