"dm-tool lock" doesn't lock my session

Posted by cape1232 on Ask Ubuntu See other posts from Ask Ubuntu or by cape1232
Published on 2012-10-23T19:48:25Z Indexed on 2012/11/02 5:24 UTC
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When I use dm-tool to lock the screen for userA, I can log in as userB and then use dm-tool to switch back to userA's session without having to enter a password. Is that the expected behavior? If not, how should I switch from A to B without leaving userA exposed?

userA$ dm-tool lock

--> Shows Greeter. Login as userB.

userB$ dm-tool switch-to-user userA

--> Expected this to go to greeter, but it goes right back to userA's session.

Do I have something mis-configured, or what?

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