In some ways, this is a continuation of a previous topic I opened: https://devtalk.nvidia.com/default/topic/1038760/linux/kubuntu-18-04-1lts-running-nvidia-390-77-flickers-and-trashes-graphics-buffers-after-unsuspend/post/5277719/#5277719
I’m creating this new topic to remove noise about 390.77 and because my other topic is now being ignored. I’m also ignoring the trashed buffers, which still happens with perfect regularity, but I can live with.
This morning, after unsuspending, I have a new kind of flickering. Not as bad as the old (see previous topic) which I’ve also seen on 396.54, but bad enough to make me reboot my box.
This flicker is not most of the screen flicker while a dialog is open, but instead just window manager features, such as title bars and borders, are flickering. See the attached video.