I installed driver version 460.39 and encountered what I assume is the same bug, the only usable scaling was 100% and 200% with the other fractional scaling options 'zoomed' in slightly so the right-hand side of the desktop was cut-off.
In PRIME profiles change *Performance* to *On-Demand*
Restart system
Verify that fractional scaling is working again
Reopen nvidia-settings as above and change *On-Demand* back to *Performance*
Restart system
Verify that fractional scaling is still working
I installed driver version 460.39 and encountered what I assume is the same bug, the only usable scaling was 100% and 200% with the other fractional scaling options 'zoomed' in slightly so the right-hand side of the desktop was cut-off.
I did however find a workaround on AU https:/ /askubuntu. com/a/1321851/ 8570 that might help identify the problem.
Open nvidia settings with root privileges:
sudo nvidia-settings
In PRIME profiles change *Performance* to *On-Demand*
Restart system
Verify that fractional scaling is working again
Reopen nvidia-settings as above and change *On-Demand* back to *Performance*
Restart system
Verify that fractional scaling is still working