Comment 3 for bug 1570197

I'm getting this (or something very similar) on Arch - version 1.30
The first time I lock my session it works fine but the second time it kicks me to the "this session is locked you will be redirected to the greeter" message and then I have to go into a virtual terminal and restart lightdm (which restarts my login session)
I've tried it with the GTK and slick greeters and both of them have the problem.
Here's my `/var/log/lightdm/lightdm.log from the second time I lock & unlock in a session: https://gist.github.com/crispinha/f1c28d6d670ea9dd6f4f82ce8d6659e7