I'm not sure whether this is a bug (in which case I'll submit a report) or I'm doing something silly!
My problem is that I cannot restart or shutdown my computer from the LightDM login screen, this problem occurs if I go through the following steps:
- Log in
- Lock the screen either through inactivity or selecting "lock screen"
- At the password entry screen select "Switch User"
- Click the power symbol at the top right of the LightDM login screen and select "restart" or "shutdown"
When I do this nothing happens, the computer does not restart or shutdown and neither is there any error messages, I would have assumed that if I'm not supposed to be able to select these options then I'd at least get a warning message?
So does anyone know if this is a bug or something dumb I'm doing!?
I filled a bug-report on launchpad for this a while ago: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/932724