Addendum: >From /var/log/lightdm/x-0-greeter.log:
*** Error in `/usr/sbin/lightdm-gtk-greeter': double free or corruption (fasttop): 0x00007f22865207c0 *** -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1377373 Title: Variables defined twice in config files lead to crash To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1377373/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs