Comment 6 for bug 1400742

I am still unable to reproduce, but it looks like we know why this happens. Ken's phablet user got added to the "nopasswdlogin" group, so unity8 isn't prompting for a login.

Now getting added to this group isn't so unusual. That happens when switching to swipe mode when your device is in writable mode (normally in RO mode, that doesn't happen).

But also when in writable mode, if you switch back to passcode, your user is supposed to be removed from the group. That isn't happening here, and it's not clear why. Ken's device is still in writable mode. And the permissions for /etc/group seem fine.

So this is either a bug in system-settings or accountsservice.

I haven't been able to reproduce yet on my krillin either. Ken says he can't reproduce on his other device, a mako. So something is messed up with his krillin.