Ubuntu 20.04 - Display glitches after wake up

You can try to disable hardware acceleration in the settings.

I just started facing this issue too with Ubuntu 18.04.5 LTS ( which I've been using since 2 years). I think it's linked to the new Chrome Version 85.0.4183.102 (Official Build) (64-bit). I reinstalled NVIDIA drivers (a couple of them 390, 415, 430, 450) that didn't solve the problem.

Anyway by disabling hardware acceleration in CHROME settings, I don't have this issue anymore. I'll update this post once I have more details.

Edit 1

Upgrading to ubuntu 20.04 resolved the issue for me. I'm using NVIDIA-driver-450 property tested.

Edit 2

Once again I update chrome and I'm starting to have the issue in chrome Version 86.0.4240.193 (Official Build) (64-bit). I'm using NVIDIA-driver-450 property tested.