Ubuntu cannot switch user

Question

I am using ubuntu15.04. I have the superuser account and another user account. I can login either account with no problem. I clicked the gear button at the top right corner. I did see the two accounts listed, but when I clicked the other account, no response, no swtiching.

OK, I tried to lock the current account and thought I could then login the other. But in the locked screen, I can only see the current account listed, but not the other account, and so I cannot switch in this way either.

The only way I can switch user is to logout or restart the computer, and then login the other account.

Anyone can help?

How did you create the other account? Are you sure it's enabled? — Maythux, Jun 13 '15 at 13:16
I think it's enabled. In fact I am typing this reply in that user account, not the superuser account. — velut luna, Jun 13 '15 at 13:37

score 0 · Accepted Answer · answered Jun 16 '15 at 16:37

0

Problem solved. I don't know why my default display manager is gdm. Can switch between users now after changing to lightdm.

answered Jun 16 '15 at 16:37

velut luna

371

Ubuntu cannot switch user

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