This morning I installed updates for Zorin and since that time the display is poor, fuzzy.
The graphics driver details:
vendor : NVIDIA Corporation
model : GM107M [GeForce GTX 860M]
driver : nvidia-driver-418-server - distro non-free
driver : nvidia-driver-440-server - distro non-free
driver : nvidia-driver-450 - third-party free recommended
That recommended driver is installed.
I tried different fonts but the rendering remains poor.
I have two questions:
- how to repair the poor rendering
- how to revert to a previous installation without making backups