Now that ubuntu uses lightdm by default, something similar should be implemented in lightdm as well.
A similar request is https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1108518.
Now that ubuntu uses lightdm by default, something similar should be implemented in lightdm as well.
A similar request is https:/ /bugs.launchpad .net/ubuntu/ +source/ lightdm/ +bug/1108518.