Ubuntu
mutter package

  1. Bug #2020782
  2. Comment #10

Comment 10 for bug 2020782

Revision history for this message
Daniel van Vugt (vanvugt) wrote : Re: Changing display scale setting and reverting it, causes gnome-shell to error with "Failed to restore previous configuration" and other error messages

I'm guessing your desktop resolution might have been too low for other scaling factors to be offered? It varies according to the screen resolution. Maybe also according to the (virtual) hardware's reported DPI.