I had this problem last year and found a fix by asking here:
https://askubuntu.com/questions/1025923/ubuntu-18-04-unity-cant-login-to-my-ubuntu-sso-account-from-unity-control-cen
But when I tried logging in on a new installation today, it worked without enabling CSD. Maybe it got fixed? I'm using 18.04.2 now BTW
I had this problem last year and found a fix by asking here:
https:/ /askubuntu. com/questions/ 1025923/ ubuntu- 18-04-unity- cant-login- to-my-ubuntu- sso-account- from-unity- control- cen
But when I tried logging in on a new installation today, it worked without enabling CSD. Maybe it got fixed? I'm using 18.04.2 now BTW