Comment 11 for bug 1521403

I mean that historically it's always been possible, and sometimes useful, to be able to turn the screen off immediately on the command line (xset dpms ...).

It's not a major requirement, but a rare one. I can't even remember what my use case was for it in the past. In the case of 'mirout', I only added power commands for testing. I don't think anyone will complain in a hurry if no command line exists for changing the power mode.

As for Xmir turning the display off, that's just legacy code from before I adopted the project. I completely agree Xmir should not be changing power modes for Unity8.