In the past dconf-editor could be used to change the cursor size.
I installed Ubuntu 20.04. I changed the value to 64 rebooted, and still the size of the cursor is unchanged.
How to increase the cursor size on Ubuntu 20.04?
Go to the Settings panel... choose Universal Access, then Cursor Size... or in newer systems Accessibility, Seeing, then Cursor Size...
dconf-editor still works for me in Ubuntu 20.04.01...
Are you sure you clicked "Apply" (or changed the view) before exiting?
dconffor all the related sections, such as/org/cinnamon/desktop/interface/cursor-sizeor/org/gnome/desktop/interface/cursor-size– jjrr Nov 20 '20 at 09:12libnvidia-compute-440was preventingdo-release-upgrade(I fixed it downgrading it). During the upgrade the nvidia server crashed (fortunately, it did not prevent the upgrade) – jjrr Nov 20 '20 at 18:00sudo apt-get purge *nvidia*to remove all Nvidia software, and reinstall the proper version for your model Nvidia card and 20.xx. – heynnema Nov 20 '20 at 18:20nvidia-driver-455... for now it seems all fine – jjrr Nov 21 '20 at 12:41