Recently upgraded from Ubuntu 19 to 20.04, since doing so I keep running into an issue that I struggle to describe so here goes...
Initially, right after login, the screen will re-size / flicker - it is most noticeable with Plank which moves around on the screen.
What will happen as time goes by is I will be in an application and the screen will reload, best way to describe it is an application is minimized and then is maximized and then is minimized and so on.
At this point the system is basically unusable because I can't stay in a single app for long enough to do anything.
This is on a Lenovo T440s laptop. I don't seem to have any additional display drivers to install but could it be a driver issue?
I did see a post that read similar to my issue:
But it happens on power and battery, I've removed TLP
If I can provide additional details please let me know.